💡 What You Need to Know Right Away
The 5:2 diet is an intermittent fasting method that helps you lose weight, improve blood sugar control, and support heart health by eating normally 5 days per week and restricting calories to 500-600 on 2 non-consecutive fasting days.
Also known as: 5:2 Intermittent Fasting, Fast Diet, Two-Day Diet, 5:2 IF, Periodic Fasting
- Research shows this eating pattern helped reduce body weight by 3 to 8 percent over several weeks to months in people who are overweight[Evidence: A][1]
- In adults with diabetes, this approach with meal replacements helped reduce blood sugar levels by about 2 percent, which was better than standard diabetes medications[Evidence: B][2]
- About 3 out of 4 people could stick with this eating pattern initially, but this dropped to about 1 in 5 people after a year[Evidence: B][6]
- No serious unwanted side effects were reported in studies of people who are overweight or have obesity[Evidence: A][1]
If you have been searching for a sustainable way to lose weight without counting every calorie every day, you have likely come across the 5:2 diet. This intermittent fasting approach has gained significant attention since British journalist Michael Mosley popularized it in his book "The Fast Diet."
It is common to feel overwhelmed when first researching different diet options. The good news is that current evidence provides clear guidance on who this approach works best for, what results you can realistically expect, and how to manage common challenges like hunger on fasting days.
In this guide, you will learn exactly how the 5:2 diet works, what the research shows about its benefits and risks, and practical strategies to help you succeed. Whether you are considering trying this approach or simply want to understand it better, we will break down the science in plain language.
❓ Quick Answers
What is the 5:2 diet and how does it work?
The 5:2 diet is an intermittent fasting method where you eat normally for 5 days per week and restrict calories to 500 (women) or 600 (men) on 2 non-consecutive fasting days. Research shows this approach produces similar weight loss to daily calorie restriction[Evidence: A][3]. Most people choose Monday and Thursday as fasting days to maintain weekday structure.
Is the 5:2 diet safe?
In people who are overweight or have obesity, no serious unwanted side effects were reported in studies[Evidence: A][1]. However, people with diabetes on medications face increased low blood sugar risk and require medical supervision[Evidence: B][11]. Pregnant women, breastfeeding mothers, children, and those with eating disorders should avoid this approach.
How much weight can you lose on the 5:2 diet?
Research shows this eating pattern helped reduce body weight by 3 to 8 percent over several weeks to months[Evidence: A][1]. In adults with diabetes, people following this approach lost about 22 pounds compared to 12-13 pounds with diabetes medications[Evidence: B][2]. Individual results vary based on starting weight and adherence.
What can you eat on 5:2 fasting days?
On fasting days, you eat 500 calories (women) or 600 calories (men). Focus on lean proteins, non-starchy vegetables, low-calorie soups, and dark berries. Studies suggest only about 6 out of 10 people successfully stuck to the calorie limits on fasting days[Evidence: B][7]. Spreading calories across 2-3 small meals or saving them for one satisfying dinner are both valid approaches.
Who should not do the 5:2 diet?
Early research suggests repeated fasting during pregnancy may alter how the placenta transports amino acids to the developing baby[Evidence: C][18]. People with type 1 diabetes, those with active eating disorders, children under 18, underweight individuals, and breastfeeding mothers should avoid this diet. People with type 2 diabetes on insulin or sulfonylureas need medical supervision.
Can the 5:2 diet help with diabetes?
In adults with diabetes, this eating pattern with meal replacements helped reduce blood sugar levels by about 2 percent, better than standard medications[Evidence: B][2]. In people with diabetes, this approach helped reduce blood sugar levels by about 0.7 percent compared to about 0.4 percent in the control group[Evidence: B][8]. However, hypoglycemia risk increases, requiring careful monitoring.
Does the 5:2 diet help with fatty liver disease?
In people with fatty liver disease, this eating pattern reduced moderate or severe liver fat buildup to about 3 out of 10 people compared to about 6 out of 10 with daily calorie cutting[Evidence: B][9]. Significant liver scarring was reduced to about 4 out of 100 people compared to about 26 out of 100 with daily calorie restriction[Evidence: B][9].
The 5:2 Diet Method
Master the art of Intermittent Fasting. Learn how five days of normal eating combined with two days of calorie restriction can transform your metabolic health.
🔬 How Does the 5:2 Diet Work?
Understanding how the 5:2 diet affects your body helps explain why it works for weight loss and metabolic health. The mechanism involves several interconnected processes that occur during your fasting days.
The Metabolic Switch
Think of your body like a hybrid car that can run on two fuel sources. Normally, you run on glucose from the food you eat. After several hours of fasting, your body flips a metabolic switch and starts burning stored fat for fuel instead. Clinical guidelines recommend this approach because it triggers metabolic transformation for systemic metabolism improvement[Evidence: D][16].
When you restrict calories to 500-600 on fasting days, your body depletes its readily available glucose stores within 8-12 hours. This forces your liver to produce ketone bodies from fat, which can fuel your brain and muscles. Research shows higher levels of fat breakdown markers in urine during this approach, suggesting sustained fat burning[Evidence: B][14].
Insulin and Blood Sugar Effects
Studies suggest insulin levels decreased in people following this eating pattern[Evidence: B][5]. Lower insulin levels allow your body to access stored fat more easily. In people with or without diabetes, studies suggest insulin resistance improved, as measured by HOMA-IR reduction[Evidence: B][5].
For people with type 2 diabetes, research shows the 5:2 pattern was superior to daily calorie restriction for reducing BMI[Evidence: A][4]. The periodic nature of fasting may help reset insulin sensitivity more effectively than constant mild restriction.
Cardiovascular and Liver Benefits
Research shows this eating pattern helped lower bad cholesterol (LDL) levels[Evidence: A][1] and helped reduce blood pressure[Evidence: A][1]. In people who are overweight, studies suggest waist size decreased[Evidence: B][5].
Perhaps most notably, studies suggest this eating pattern improved liver scarring and fat buildup beyond what weight loss alone explained[Evidence: B][9]. This suggests the fasting process itself, not just calorie reduction, provides unique metabolic benefits.
Long-Term Metabolic Adaptation
In people following this eating pattern for up to a year, studies suggest the benefits were maintained[Evidence: B][5]. Blood sugar levels, insulin resistance, and thyroid hormone levels decreased as BMI went down[Evidence: B][14].
🧪 What to Expect: The Real User Experience
During Fasting Days
Hunger typically peaks at your usual meal times rather than building constantly throughout the day. Most people describe hunger as "manageable waves" that pass after 20-30 minutes if ignored. The strongest hunger usually occurs mid-morning (10am-11am) and mid-afternoon (3pm-4pm) on fasting days. Your first 2-3 fasting days feel most intense, but many people report adaptation by week 3-4.
Headaches are reported by approximately 6 out of 10 people attempting fasting, typically tension-type headaches in temples or forehead. These usually begin 4-6 hours into the fasting period and are often linked to dehydration or caffeine withdrawal rather than pure hunger. You may also notice feeling colder than usual, brief dizzy spells when standing quickly, and an empty, hollow feeling in your stomach.
Mood changes are common. "Hangry" irritability peaks around hour 8-12 of fasting. About 4 out of 10 people report difficulty concentrating, especially during the afternoon dip. Intrusive thoughts about food and obsessive meal planning are normal experiences.
What You'll Experience Over Time
During weeks 1-2, hunger feels intense and uncomfortable, headaches and fatigue are most pronounced, and there is high dropout risk. By weeks 3-4, hunger waves become more predictable and manageable, energy dips are less severe, and mental adjustment occurs as you learn "this feeling passes."
By months 2-3, fasting days feel "normal" for most people who stick with it. Hunger becomes a background sensation rather than intrusive. However, the critical adherence drop-off occurs between months 6-12. Research shows adherence drops from about 3 out of 4 people at 6 weeks to about 1 in 5 people at 12 months[Evidence: B][6].
How to Make It Easier
- Busy Day Strategy: Schedule fasting days on your busiest workdays to stay distracted from hunger
- Black Coffee Lifeline: Multiple cups of black coffee throughout the day help suppress hunger (within caffeine limits)
- Dinner-Only Method: Save all 500 calories for one satisfying dinner rather than splitting into tiny meals
- Vegetable Volume Trick: Fill your plate with non-starchy vegetables (cucumber, lettuce, zucchini) for psychological fullness
- Monday/Thursday Split: This is the most popular fasting day combination, providing mid-week structure with weekends free
- Early Bedtime: Go to bed 1-2 hours earlier on fasting days to avoid evening hunger
- Pre-Log Calories: Plan and log fasting day meals in the morning to avoid decision fatigue throughout the day
📊 How to Follow the 5:2 Diet
The 5:2 diet has a straightforward structure: eat normally for 5 days, restrict calories significantly on 2 non-consecutive days. Here are the specific guidelines based on research.
Calorie Targets
| Day Type | Women | Men | Duration | Evidence |
|---|---|---|---|---|
| Fasting Days (2 per week) | 500 calories | 600 calories | Ongoing | [A][1] |
| Non-Fasting Days (5 per week) | Normal intake (~2000 cal) | Normal intake (~2500 cal) | Ongoing | [A][1] |
Outcomes by Condition
| Condition | Intervention | Expected Outcome | Timeline | Evidence |
|---|---|---|---|---|
| Overweight/Obesity | 5:2 fasting (500-600 cal on fasting days) | 3-8% body weight reduction | 3-24 weeks | [A][1] |
| Type 2 Diabetes | 5:2 with meal replacements | HbA1c reduction of 1.9% | 16 weeks | [B][2] |
| Type 2 Diabetes | 5:2 energy-restricted diet | HbA1c reduction of 0.72% | 12 weeks | [B][8] |
| Fatty Liver Disease (MAFLD) | 5:2 intermittent fasting | Liver steatosis reduced to 29.6% (vs 59.3% with CER) | 12 weeks | [B][9] |
| Insulin Resistance | 5:2 diet | HOMA-IR reduction, sustained at 12 months | 6-12 months | [B][5] |
Getting Started
Choose 2 non-consecutive days for fasting. Most research used schedules like Monday/Thursday or Tuesday/Friday. During the initial weeks, focus on learning which foods keep you satisfied within your calorie limit rather than perfecting the approach immediately.
On fasting days, you can split your calories across 2-3 small meals or save them for one larger evening meal. Research shows no significant difference in outcomes between these approaches. The key is finding what helps you adhere to the calorie target.
⚠️ Risks, Side Effects, and Warnings
While the 5:2 diet is generally well-tolerated, understanding the potential risks helps you make an informed decision and know when to seek medical attention.
Who Should NOT Try the 5:2 Diet
Common Side Effects
It is common to worry about side effects when starting a new eating pattern. Most side effects are mild and temporary:
- Hunger: Peaks at typical meal times, most intense in weeks 1-2
- Headaches: Often linked to dehydration or caffeine withdrawal rather than fasting itself
- Fatigue: Temporary energy dips, especially in the afternoon
- Irritability: "Hangry" feelings peak around hour 8-12 of fasting
- Difficulty concentrating: Reported by about 4 out of 10 people
- Constipation: Common on fasting days, resolves on normal eating days
- Feeling cold: Normal metabolic adaptation during calorie restriction
Hypoglycemia Risk in Diabetes
In people with diabetes on medications, fasting increased the risk of low blood sugar episodes by about 2 times despite medication being reduced[Evidence: B][11]. However, studies suggest education combined with medication adjustments helped keep low blood sugar event rates lower than expected[Evidence: B][11].
In people with diabetes treated with insulin, no serious low blood sugar events occurred during supervised research studies[Evidence: B][10]. Clinical guidelines recommend blood sugar control markers must be constantly monitored in people with diabetes trying this approach[Evidence: D][17].
When to See a Doctor
Seek medical attention if you experience:
- Severe dizziness or fainting
- Persistent severe headaches that do not improve with hydration
- Your menstrual period stops
- Extreme mood changes or signs of depression
- Rapid heart rate or palpitations
- Signs of disordered eating (obsessive calorie counting, food anxiety)
- Blood sugar drops below 70 mg/dL (for people with diabetes)
🥗 Practical Ways to Use the 5:2 Diet
How to Use This in Your Daily Life
For Weight Loss
- Protocol: 500-600 calories on 2 non-consecutive fasting days per week[1]
- Duration: Minimum 12 weeks for meaningful weight loss results
- Population: Adults with BMI over 25
- What to track: Weekly weight, waist circumference, how clothes fit
- Expected results: 3-8% body weight reduction over 3-24 weeks[Evidence: A][1]
For Blood Sugar Management (with Medical Supervision)
- Protocol: 5:2 with structured meal replacements showed best results[2]
- Duration: 12-16 weeks minimum
- Population: Adults with type 2 diabetes, supervised by healthcare provider
- What to track: Blood glucose levels daily, HbA1c quarterly
- Expected results: HbA1c reduction of 0.72-1.9%[Evidence: B][2,8]
Common Mistakes to Avoid
- Overcompensating on non-fasting days: Studies suggest people ate substantially more on non-fasting days after fasting days[Evidence: B][7]. This compensatory overeating pattern undermines weight loss.
- Choosing consecutive fasting days: Studies suggest no significant benefit to back-to-back fasting, and it increases difficulty.
- Expecting immediate results: Weight loss slowed to about 1 pound per month during long-term fasting periods[Evidence: B][14]
- Stopping too early: Many people who quit during weeks 1-2 miss the adaptation period when fasting becomes easier
- Not adjusting medications: People with diabetes must work with their doctor to reduce medications on fasting days
Transitioning to Maintenance
After reaching your goal weight, many successful long-term users transition to 6:1 (one fasting day per week) for maintenance. Research over 2 years showed weight loss decreased to about 1 pound per month during intermittent fasting periods compared to about 2.5 pounds per month with daily calorie restriction[Evidence: B][14].
What to Look for When Starting the 5:2 Diet
Before beginning the 5:2 diet, consider whether this approach matches your lifestyle, health status, and goals.
Signs You May Be a Good Candidate
- BMI over 25: Most research studied people who are overweight or have obesity Why it matters: Weight loss benefits are established for this population[1]
- Flexible schedule: You can choose which 2 days to fast each week Why it matters: Rigid schedules with unmovable fasting days lead to more dropouts
- No insulin or sulfonylurea medications: Or you have medical supervision for medication adjustments Why it matters: These medications increase hypoglycemia risk[11]
- History of dieting difficulty: The 5:2 approach may feel easier than daily restriction Why it matters: Some people prefer 2 "hard" days over 7 "moderately hard" days
Questions to Ask Yourself
- Can I plan around 2 low-calorie days per week consistently?
- Do I have access to a scale and measuring tools for portion control?
- Am I willing to track calories on fasting days?
- Can I handle temporary hunger and irritability?
- Do I have medical conditions that require doctor consultation first?
Red Flags That This Approach May Not Be Right for You
- History of eating disorders: Fasting patterns may trigger harmful behaviors
- Unpredictable schedule: If you cannot consistently fast on chosen days, adherence will suffer
- Extreme hunger sensitivity: If hunger causes severe mood or cognitive effects
- Pregnancy or trying to conceive: Fasting poses risks to fetal development[18]
How the 5:2 Diet Compares to Other Fasting Methods: What to Know
The 5:2 diet is one of several intermittent fasting approaches. Each method has different evidence profiles and practical considerations. Research shows this eating pattern produces similar weight loss to traditional daily calorie cutting[Evidence: A][3], but the practical experience differs significantly.
| Feature | 5:2 Diet | 16:8 Time-Restricted Eating | Alternate-Day Fasting (ADF) | Daily Calorie Restriction |
|---|---|---|---|---|
| How It Works | 500-600 cal on 2 days/week, normal eating 5 days | Eat within 8-hour window daily, fast 16 hours | Fast (0-500 cal) every other day | Reduce daily intake by 20-25% |
| Difficulty Level | Moderate (2 hard days, 5 normal) | Low (daily routine, no full-day fasting) | High (fasting every other day) | Moderate (constant vigilance) |
| Weight Loss | 3-8% over 3-24 weeks[1] | Similar to 5:2[3] | Superior to 5:2[3] | 5.5-6.5 kg at 6 months[13] |
| Waist Reduction | Moderate reduction[1] | Moderate reduction[12] | Superior to 5:2 and CER[4] | Less than combined IF methods[12] |
| Hunger/Fatigue Complaints | Moderate (2 days intense) | Low (daily adaptation) | High (frequent intense hunger) | Fewer subjective complaints[15] |
| Short-Term Compliance | >80% in trials <3 months[3] | High (easier daily routine) | Lower than 5:2 | Similar to IF methods |
| Best For | People who prefer structure with weekends free | Beginners, daily routine lovers | Maximum weight loss, experienced fasters | Those who prefer constant small deficits |
Studies indicate that alternate-day fasting worked better than the 5:2 pattern for weight loss[Evidence: A][3]. Studies suggest alternate-day fasting reduced waist size more than the 5:2 pattern or daily calorie cutting[Evidence: A][4]. However, the 5:2 approach offers a middle ground between effectiveness and practicality.
Research shows people following daily calorie cutting experienced less hunger and fatigue[Evidence: A][15]. Studies indicate this eating pattern may be an effective alternative but is not superior to daily calorie cutting for overall health[Evidence: A][15].
What The Evidence Shows (And Doesn't Show)
What Research Suggests
- Research shows this eating pattern helped reduce body weight by 3 to 8 percent over several weeks to months in people who are overweight or have obesity (based on a meta-analysis of 20 RCTs, n=1,393)[Evidence: A][1]
- In adults with diabetes, this approach with meal replacements helped reduce blood sugar (HbA1c) by about 2 percent, which was better than standard diabetes medications metformin and empagliflozin (n=405, 16 weeks)[Evidence: B][2]
- Research shows similar weight loss (5.5-6.5 kg at 6 months) between this eating pattern and daily calorie cutting (10 RCTs, n=623)[Evidence: A][13]
- In people with fatty liver disease, this eating pattern reduced moderate or severe liver fat buildup to about 3 out of 10 people compared to about 6 out of 10 with daily calorie cutting (n=60)[Evidence: B][9]
- Studies indicate fasting improved insulin sensitivity with reduced insulin levels and insulin resistance markers[Evidence: A][13]
What's NOT Yet Proven
- Long-term outcomes beyond 24 months remain limited. Only one study (n=23) provides 24-month follow-up data[14]
- Research shows fasting is not superior to daily calorie cutting for long-term weight management[Evidence: A][13]
- Optimal calorie targets on fasting days (500 vs 600 vs other amounts) have not been established through controlled comparison
- Muscle mass preservation: Some data shows this eating pattern reduced muscle mass more than daily calorie cutting[Evidence: A][12]
- Effects on menstrual cycles lack primary RCT evidence in current research
Where Caution Is Needed
- In people with diabetes on medications, fasting increased the risk of low blood sugar by about 2 times despite medication reduction[Evidence: B][11]
- Adherence drops dramatically from about 74% at 6 weeks to about 22% at 12 months[Evidence: B][6]
- Studies suggest only about 6 out of 10 people successfully stuck to the calorie limits on fasting days[Evidence: B][7]
- Compensatory overeating was observed on non-fasting days following fasting[Evidence: B][7]
- Early research suggests repeated fasting during pregnancy may alter placental amino acid transport[Evidence: C][18]
Should YOU Try This?
Best suited for: Adults with BMI over 25 who prefer periodic intense restriction over daily moderate restriction. Good for people with flexible schedules who can choose fasting days. Research supports use in people with type 2 diabetes (with medical supervision), fatty liver disease, and metabolic syndrome.
Not recommended for: Pregnant or breastfeeding women, children under 18, people with type 1 diabetes, those with active eating disorders, underweight individuals, and anyone on insulin or sulfonylureas without medical supervision.
Realistic timeline: Noticeable weight loss within 2-4 weeks. Blood sugar improvements measurable at 12 weeks. In people following this approach for up to a year, metabolic benefits were maintained[Evidence: B][5]. Weight loss slows to about 1 pound per month with long-term use.
When to consult a professional: Before starting if you take any medications, have diabetes, have a history of eating disorders, or have any chronic health condition. During use if you experience severe side effects, menstrual irregularities, or signs of disordered eating.
Frequently Asked Questions
How long does it take to see results on the 5:2 diet?
Initial weight loss typically becomes noticeable within 2-4 weeks. Research shows weight loss of approximately 4 pounds at both 6 and 12 months. About 15 to 18 out of 100 people lost at least 5 percent of their body weight. The first 2-3 weeks may show more dramatic results due to water weight loss, with fat loss becoming the primary driver afterward. Blood sugar improvements in people with diabetes may be measurable within 12 weeks.
Can you exercise on 5:2 fasting days?
Light to moderate exercise is generally safe on fasting days, but high-intensity training may be challenging due to reduced energy availability. Studies suggest exercise combined with fasting helped preserve muscle mass better than diet alone. Many people find morning walks or yoga manageable, while saving intense workouts for non-fasting days. Listen to your body and stop if you feel dizzy or excessively fatigued.
What can I drink on 5:2 fasting days?
Water, black coffee, and unsweetened tea are calorie-free and can be consumed freely on fasting days. Many people find black coffee helps suppress hunger. Bone broth or clear vegetable broth can provide electrolytes while adding minimal calories. Avoid sugary drinks, alcohol, and beverages with cream or milk, as these add significant calories to your limited budget.
Can you do the 5:2 diet long term?
Research extending to 24 months shows the approach can be maintained, though weight loss slowed to about 1 pound per month during long-term fasting periods. In people following this eating pattern for up to a year, studies suggest the metabolic benefits were maintained. However, adherence dropped significantly from about 3 out of 4 people at 6 weeks to about 1 in 5 people at 12 months. Many long-term users transition to 6:1 (one fasting day) for maintenance.
Why do I get headaches on fasting days?
Fasting day headaches are commonly linked to dehydration, caffeine withdrawal, or low blood sugar rather than hunger alone. They typically begin 4-6 hours into the fasting period. Staying well-hydrated, maintaining your usual caffeine intake (from black coffee or tea), and ensuring adequate salt intake can help prevent them. Most people report headaches improve after the first 2-3 weeks of adaptation.
Is the 5:2 diet safe for people taking blood pressure medication?
Research shows this eating pattern helped reduce blood pressure. This means blood pressure may drop further when combined with medication. Clinical guidelines recommend blood glucose and blood pressure markers must be constantly monitored. Consult your doctor before starting, as medication adjustments may be necessary. Monitor blood pressure regularly during the initial weeks.
Does the 5:2 diet affect fertility or menstrual cycles?
Early research suggests repeated fasting during pregnancy may alter placental function. For women trying to conceive, significant calorie restriction may affect hormone levels and menstrual regularity. If your period stops or becomes irregular while on the 5:2 diet, this is a sign to stop and consult a healthcare provider. The diet is explicitly contraindicated during pregnancy and breastfeeding.
Can the 5:2 diet help with insulin-treated diabetes?
In people with diabetes treated with insulin, the fasting group showed significant blood sugar improvement. No serious low blood sugar events occurred during supervised research. However, this was in a carefully monitored research setting with medication adjustments. Studies suggest this eating pattern is safe and workable in insulin-treated type 2 diabetes with proper monitoring. Never attempt this without medical supervision and medication adjustments.
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At Biochron, we take health information seriously. Every claim in this article is supported by peer-reviewed scientific evidence from reputable sources published in 2015 or later. We use a rigorous evidence-grading system to help you understand the strength of research behind each statement:
- [Evidence: A] = Systematic review or meta-analysis (strongest evidence)
- [Evidence: B] = Randomized controlled trial (RCT)
- [Evidence: C] = Cohort or case-control study
- [Evidence: D] = Expert opinion or clinical guideline
Our editorial team follows strict guidelines: we never exaggerate health claims, we clearly distinguish between correlation and causation, we update content regularly as new research emerges, and we transparently note when evidence is limited or conflicting. For our complete editorial standards, visit our Editorial Principles page.
This article is for informational purposes only and does not constitute medical advice. Always consult qualified healthcare professionals before making changes to your health regimen, especially if you have medical conditions or take medications.
References
- 1 . Effect of the 5:2 Diet on Weight Loss and Cardiovascular Disease Risk Factors in Overweight and/or Obesity: A Systematic Review and Meta-Analysis, International Journal of Endocrinology, 2025, PubMed [Evidence: A]
- 2 . A 5:2 Intermittent Fasting Meal Replacement Diet and Glycemic Control for Adults With Diabetes: The EARLY Randomized Clinical Trial, JAMA Network Open, 2024, PubMed [Evidence: B]
- 3 . A meta-analysis comparing the effectiveness of alternate day fasting, the 5:2 diet, and time-restricted eating for weight loss, Obesity (Silver Spring), 2023, PubMed [Evidence: A]
- 4 . Network meta-analysis of three different forms of intermittent energy restrictions for overweight or obese adults, International Journal of Obesity, 2024, PubMed [Evidence: A]
- 5 . The 5:2 Diet Affects Markers of Insulin Secretion and Sensitivity in Subjects with and without Type 2 Diabetes, International Journal of Molecular Sciences, 2024, PubMed [Evidence: B]
- 6 . A randomised controlled trial of the 5:2 diet, PLoS One, 2021, PubMed [Evidence: B]
- 7 . Compliance of participants undergoing a '5-2' intermittent fasting diet and impact on body weight, Clinical Nutrition ESPEN, 2022, PubMed [Evidence: B]
- 8 . Effect of 5:2 Regimens: Energy-Restricted Diet or Low-Volume High-Intensity Interval Training Combined With Resistance Exercise on Glycemic Control and Cardiometabolic Health, Diabetes Care, 2024, PubMed [Evidence: B]
- 9 . Effect of 5:2 intermittent fasting diet versus daily calorie restriction eating on metabolic-associated fatty liver disease, Frontiers in Nutrition, 2024, PubMed [Evidence: B]
- 10 . Efficacy and Safety of Intermittent Fasting in People With Insulin-Treated Type 2 Diabetes (INTERFAST-2), Diabetes Care, 2023, PubMed [Evidence: B]
- 11 . Intermittent fasting in Type 2 diabetes mellitus and the risk of hypoglycaemia: a randomized controlled trial, Diabetic Medicine, 2018, PubMed [Evidence: B]
- 12 . Effects of Intermittent Energy Restriction Compared with Those of Continuous Energy Restriction on Body Composition and Cardiometabolic Risk Markers, Advances in Nutrition, 2024, PubMed [Evidence: A]
- 13 . Is Fasting Superior to Continuous Caloric Restriction for Weight Loss and Metabolic Outcomes in Obese Adults?, Nutrients, 2024, PubMed [Evidence: A]
- 14 . Comparison of Intermittent Fasting Versus Caloric Restriction in Obese Subjects: A Two Year Follow-Up, Journal of Nutrition, Health & Aging, 2017, PubMed [Evidence: B]
- 15 . Is isocaloric intermittent fasting superior to calorie restriction?, Nutrition, Metabolism and Cardiovascular Diseases, 2025, PubMed [Evidence: A]
- 16 . Intermittent fasting in type 2 diabetes: from fundamental science to clinical applications, European Review for Medical and Pharmacological Sciences, 2023, PubMed [Evidence: D]
- 17 . Intermittent fasting in the management of diabetes: a review of glycemic control and safety, Nutrition Reviews, 2024, PubMed [Evidence: D]
- 18 . Maternal intermittent fasting during pregnancy: a translational research challenge, Clinical Science (London), 2021, PubMed [Evidence: C]
Medical Disclaimer
This content is for informational and educational purposes only. It is not intended to provide medical advice or to take the place of such advice or treatment from a personal physician. All readers are advised to consult their doctors or qualified health professionals regarding specific health questions and before making any changes to their health routine, including starting new supplements.
Neither Biochron nor the author takes responsibility for possible health consequences of any person reading or following the information in this educational content. All readers, especially those taking prescription medications, should consult their physicians before beginning any nutrition, supplement, or lifestyle program.
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