Browse the evidence

A brief, low-cost intervention based on habit-formation theory (Ten Top Tips leaflet) delivered in primary care produces significantly greater short-term weight loss (3 months) compared to usual care, with effects maintained at 24 months.

Use a simple, structured leaflet that focuses on building habits (repetition and context) rather than complex diet rules. Deliver it in a brief (30-minute) primary care visit. Provide tools for self-monitoring (logbook) and simple guidance (food label card). This approach is low-cost and can be effective for short-term weight loss, especially for patients who find traditional programs too demanding.

Replacing ultra-processed foods with less processed alternatives significantly reduces health risks, including metabolic syndrome, bisphenol A exposure, and vitamin deficiencies, even with modest substitution.

You do not need to completely overhaul your diet to improve your health. Simply identifying and replacing just one or a few of your most frequently consumed ultra-processed items with less processed alternatives (like swapping sugary cereals for whole grain ones) can significantly lower your risk of metabolic syndrome and improve vitamin levels. Focus on high-calorie items that have clear, less-processed counterparts.

Post-exercise ingestion of alcohol (1.5 g/kg body mass) significantly impairs maximal rates of myofibrillar protein synthesis (MPS) in skeletal muscle, reducing synthesis by 24% even when co-ingested with optimal protein (25g whey), and by 37% when co-ingested with carbohydrate.

If you consume alcohol after exercise, your muscle-building potential is significantly reduced, even if you eat protein. Alcohol blunts the signaling (mTOR) required for muscle repair. To maximize gains, avoid alcohol post-workout, or accept that your recovery will be suboptimal regardless of protein intake.

Adherence to a Mediterranean diet reduces the risk of developing abdominal obesity (increased waist circumference) in normal weight individuals, driven primarily by low red meat intake and high vegetable consumption.

To prevent belly fat accumulation, focus on the entire Mediterranean pattern: eat plenty of vegetables, limit red meat and sugary drinks, and choose whole grains. Simply adding 'healthy' fats without addressing other dietary components may not provide the same protection against abdominal obesity.

A theory-based mobile app intervention (Vegethon) significantly increases daily vegetable consumption in overweight adults attempting weight loss maintenance compared to a wait-listed control.

If you are overweight and trying to maintain weight loss, use a dedicated vegetable-tracking app like Vegethon. Commit to just 1-2 minutes a day to log your intake. The app uses gamification (points, challenges, social comparison) to make the habit stick. This simple behavioral tool can add roughly 2 servings of vegetables to your daily diet, which is a significant health improvement.

High adherence to a personalized dietary program significantly reduces LDL cholesterol and apolipoprotein B, whereas standard dietary advice does not, suggesting personalization may be necessary for lipid management in certain individuals.

If you have high cholesterol, a personalized diet that accounts for your specific biological response to food may be more effective at lowering LDL and ApoB than standard guidelines, provided you adhere closely to the personalized advice.

A personalized dietary program favorably shifts gut microbiome composition, increasing the relative abundance of species associated with favorable cardiometabolic health, compared to standard dietary advice.

A personalized diet that considers your biological response to food may be more effective at improving your gut microbiome composition, specifically by increasing beneficial species, compared to standard dietary guidelines.

Combining sodium bicarbonate with creatine or beta-alanine produces additive ergogenic effects on exercise performance.

If you are already taking creatine or beta-alanine, adding sodium bicarbonate (0.3 g/kg) before high-intensity events may provide additional performance benefits. Note that combining with caffeine or nitrates is unclear.

Athletes engaged in moderate to high intensity training lasting over 12 hours per week should consume 8-10 g of carbohydrates per kg of body weight daily to maximize glycogen storage and performance.

If you train hard for more than 12 hours a week, aim for 8 to 10 grams of carbs for every kilogram of your body weight each day. If you struggle to eat that much food, switch to denser carb sources like sports drinks or gels instead of just eating large amounts of vegetables or grains.

Post-exercise carbohydrate ingestion of 1.0-1.5 g/kg/hour is sufficient to maximize muscle glycogen resynthesis rates.

After a hard workout, eat or drink 1-1.5 grams of carbs for every kg of your body weight each hour for up to 6 hours. Split this into small amounts every 30 minutes rather than eating it all at once for better absorption.

Athletes should consume 1.4-2.8 g/kg of body weight of protein daily, depending on their specific training goals and type of exercise.

Eat 1.4 to 2.8 grams of protein per kilogram of body weight every day. If you are strength training, aim for the higher end (up to 2.8 g/kg). If you are just maintaining muscle, 1.4-2.0 g/kg is sufficient.

High consumption of ultra-processed foods (UPF) is causally associated with increased risk of obesity, type-2 diabetes, cardiovascular disease, and all-cause mortality, primarily through mechanisms of energy density, nutrient displacement, and gut microbiome alteration.

Prioritize minimally processed foods over ultra-processed options. The degree of processing itself contributes to weight gain and disease risk, independent of calorie counts. Focus on whole grains, vegetables, and unprocessed proteins to reduce exposure to additives, high sodium, and low fiber.

Consuming 0.4 g/kg/meal of protein across at least four meals daily maximizes muscle protein synthesis and lean tissue accretion in resistance-trained individuals.

To build muscle, aim for 0.4 grams of protein per kilogram of body weight in each of your meals. If you weigh 70kg, eat about 28g of protein per meal. Spread this across at least four meals daily. This strategy ensures your muscles receive a steady supply of amino acids for growth, avoiding the myth that high doses per meal are wasted.

Resistance training produces comparable muscle hypertrophy across a wide spectrum of loading zones (heavy, moderate, and light loads) provided sets are performed to or near muscular failure.

You do not need to stick to a specific rep range like 8-12 to build muscle. You can use heavy weights (fewer reps) or light weights (more reps) as long as you perform your sets close to failure. Moderate loads (9-15 reps) are recommended as a practical default because they are time-efficient and easier on your joints, but varying your load can be beneficial.

Time-efficient strength training can be achieved by prioritizing bilateral, multi-joint exercises with a minimum of 4 weekly sets per muscle group using a 6–15 RM loading range.

To save time while building strength and muscle, focus on compound exercises like squats, presses, and rows. Aim for at least 4 sets per muscle group each week, using weights that allow 6-15 reps. You don't need to train every day; spreading these sets across 1-3 sessions is sufficient.

Bariatric surgery resolves Polycystic Ovary Syndrome (PCOS) symptoms, including menstrual irregularities and hirsutism, and improves fertility in obese women, largely through weight loss and hormonal normalization.

If you are obese and have PCOS, bariatric surgery can significantly improve your menstrual cycles, reduce excess hair growth, and increase your chances of conceiving. This is achieved through hormonal normalization and weight loss.

Twice-daily consumption of a multi-ingredient supplement containing 30g whey protein, 2.5g creatine, 500 IU vitamin D, 400mg calcium, and 1500mg n-3 PUFA stimulates significant gains in lean body mass and strength in healthy older men, independent of exercise.

For healthy older men, taking a specific mix of whey protein, creatine, vitamin D, calcium, and fish oil twice daily can build muscle and strength even without exercise. Adding resistance and high-intensity interval training on top of this supplement yields even greater strength gains. This approach addresses the high variability in how older adults respond to single nutrients.

A long-term intensive lifestyle intervention (ILI) focused on weight loss and physical activity significantly reduces the symptoms of diabetic peripheral neuropathy (DPN) in overweight or obese adults with type 2 diabetes, as measured by the Michigan Neuropathy Screening Instrument (MNSI) questionnaire.

For individuals with type 2 diabetes and excess weight, achieving and maintaining weight loss through diet and exercise can significantly reduce the symptoms of nerve pain and numbness associated with diabetic neuropathy. The benefits are linked to the amount of weight lost, suggesting that even modest, sustained weight loss efforts can protect nerve health over the long term.

Higher velocity loss (VL) thresholds during resistance training (typically >30-40%) are superior for inducing muscle hypertrophy, whereas lower VL thresholds (10-20%) are superior for optimizing power-related adaptations such as jumping, sprinting, and velocity against submaximal loads.

If your main goal is building muscle size, allow your bar speed to drop significantly (30-40% loss) by the end of your sets. If your main goal is jumping higher or sprinting faster, stop your sets earlier when your speed drops only a little (10-20%). Do not use high-velocity-loss sets for power exercises if you want to improve power, as the fatigue will hinder your performance gains.

Survodutide, a dual glucagon/GLP-1 receptor agonist, produces dose-dependent reductions in HbA1c and bodyweight in people with type 2 diabetes, with doses ≥1.8 mg once weekly yielding greater bodyweight loss than semaglutide 1.0 mg.

For individuals with type 2 diabetes seeking significant weight loss and glucose control, dual GLP-1/GCGR agonists like survodutide offer superior bodyweight reduction compared to standard GLP-1 therapies like semaglutide, particularly at doses of 1.8 mg/week or higher. Expect gastrointestinal side effects, which can be managed by starting with lower doses and escalating slowly.

Low-carbohydrate diets (<40% carbs) significantly reduce triglyceride levels and body weight, and increase HDL-C, with effects being most pronounced in interventions lasting less than 11 months.

Adopting a diet where less than 40% of calories come from carbohydrates can help lower triglycerides, reduce body weight, and improve HDL cholesterol, particularly if you stick with it for under a year. While LDL cholesterol might rise slightly, the overall shift in lipid particles and triglyceride reduction suggests a net benefit for heart health compared to standard diets.

Adherence to a dietary pattern high in chocolate, confectionery, butter, and low-fiber bread (and low in fruit/vegetables) is associated with a significantly increased risk of total and fatal cardiovascular disease and all-cause mortality.

Avoid combining high-fat, low-fiber foods (like butter on white bread, chocolate, confectionery) in your daily diet. This specific combination is strongly linked to higher risks of heart disease and early death. Prioritize fresh fruits, vegetables, and high-fiber cereals instead. If you consume these items, ensure they are part of a broader diet rich in fiber and plant foods to mitigate risk.

Once-weekly subcutaneous administration of GLP-1R/GIPR dual agonist tirzepatide (up to 15 mg/week) significantly reduces HbA1c and body weight in patients with type 2 diabetes, with efficacy exceeding current GLP-1RAs.

If you have type 2 diabetes and struggle with weight, ask your doctor about tirzepatide. It is a once-weekly injection that has been shown to lower blood sugar and reduce body weight more effectively than older GLP-1 drugs. While injections can be a barrier, oral options exist for other drugs in this class.

Combining the amylin analogue cagrilintide (4.5 mg/week) with semaglutide (2.4 mg/week) results in greater weight loss (15.4% reduction) than either agent alone in obese or overweight individuals.

For significant weight loss, combining cagrilintide and semaglutide has shown a 15.4% body weight reduction in 20 weeks. This combination therapy is an option for those who do not achieve sufficient weight loss with single-agent GLP-1 therapy.