Browse the evidence

Lifestyle interventions, specifically combining dietary changes (low-calorie, low-fat, low-carbohydrate, high-protein, or low-glycemic-index diets) with exercise, are the first-line and fundamental treatment for obesity.

Start with lifestyle changes as your primary tool. Combine a calorie-controlled diet (whether low-fat, low-carb, or high-protein) with regular exercise (aim for 150 minutes of moderate activity or 75 minutes of vigorous activity per week, plus strength training twice a week). This combination is more effective than diet or exercise alone. Save medications and surgery for cases where lifestyle changes are insufficient or for severe obesity.

High-protein diets promote weight loss and fat mass reduction while maintaining fat-free mass by increasing energy expenditure through diet-induced thermogenesis and stimulating anorexigenic hormones.

Consider increasing your protein intake to help with weight loss and preserving muscle. This works by boosting your metabolism and reducing hunger hormones. It is one of several effective dietary strategies.

A low-carbohydrate diet (LCD) with carbohydrate intake restricted to <14% of total energy (approx. <50g/day) enables significant medication withdrawal and superior glycemic control compared to a low-fat diet (LFD) in type 2 diabetes patients, without increasing adverse events.

To achieve medication withdrawal in Type 2 Diabetes, restrict carbohydrates to under 50 grams per day (less than 14% of calories) while ensuring adequate protein and unsaturated fats. This approach, combined with regular exercise and clinical monitoring, allows for significant reduction in diabetes medications and better blood sugar control compared to traditional low-fat diets, without increasing the risk of hypoglycemia.

Implementing a Low Carbohydrate Diet (LCD) with 12% carbohydrate intake significantly reduces glucose variability (M value) and average blood glucose in Type 2 Diabetes patients compared to standard Calorie Restriction (CR) diets within 48 hours.

For Type 2 Diabetics, switching to a Low Carbohydrate Diet (around 12% carbs, ~1400 calories) for just two days can significantly stabilize blood sugar swings compared to standard calorie-restricted diets. This suggests that reducing carbohydrate intake is a potent lever for managing glucose variability, even in the short term.

An intensive lifestyle intervention combining a low-energy diet (approx. 800 kcal/day via meal replacements) and physical activity (≥150 min/week) can induce remission of type 2 diabetes in younger patients with early-onset disease.

If you have early-stage type 2 diabetes and are under 50, a structured program involving very low-calorie meal replacements (around 800 calories) for the first few months, followed by a gradual return to solid foods, combined with at least 150 minutes of weekly exercise, may help you achieve diabetes remission. This approach focuses on significant weight loss rather than just symptom management.

Adjunctive telephone and text message support improves behavioral adherence and clinical outcomes (weight loss, self-efficacy) in adults with class III obesity compared to standard community-based care alone.

Use simple, low-tech tools like SMS and phone calls instead of complex apps for obesity management, especially for those with low tech literacy. Personalize the content and timing of messages to fit the individual's lifestyle, and ensure the support feels genuine and non-judgmental. Consider a gradual tapering of support rather than stopping abruptly to prevent relapse.

A Low Energy Diet (LED) of 800-1000 kcal/day induces significant weight loss in overweight individuals without apparent risk, and when combined with exercise, aids in weight maintenance and improves metabolic markers.

A Low Energy Diet (800-1000 kcal/day) using structured meal replacements (soups, shakes) can produce significant weight loss safely. To maintain this loss, the protocol transitions to a high-protein, low-glycemic index maintenance diet, supported by regular dietician visits.

In patients with overweight or obesity without type 2 diabetes, 1-year treatment with semaglutide 2.4 mg or tirzepatide results in clinically meaningful weight loss of 14.1% and 16.5%, respectively, in real-world clinical practice.

If you have obesity or are overweight and do not have type 2 diabetes, treatment with semaglutide (Wegovy) or tirzepatide (Zepbound/Mounjaro) for one year in a real-world setting leads to significant weight loss, averaging 14-16% of body weight. This effectiveness holds true in routine clinical practice, not just in clinical trials, although reaching the maximum dose is not guaranteed for everyone.

Semaglutide administration (1-2 mg weekly) produces significant weight loss (median 13.3% at 6 months) in adults with obesity, with efficacy maintained even at lower maintenance doses (1 mg).

Semaglutide is a highly effective treatment for obesity, producing significant weight loss even at lower maintenance doses. It requires a weekly injection and is most effective when combined with lifestyle counseling. Patients should be aware of potential gastrointestinal side effects, which are usually mild.

Maintaining or increasing resistance training volume (≥10 weekly sets per muscle group) during caloric restriction spares lean mass in resistance-trained athletes, particularly females, whereas reducing volume leads to greater lean mass loss.

If you are cutting weight, do not drop your training volume. Aim for at least 10 sets per muscle group per week. If you can, try to increase volume over time. This is especially important for female athletes to prevent muscle loss.

Strength training improves critical stroke recovery outcomes including walking capacity, balance, functional mobility, and walking speed.

For stroke survivors, strength training is a critical component of recovery that goes beyond just building muscle. It significantly improves your ability to walk, balance, and perform daily tasks. Work with a physical therapist to find a safe program that fits your current ability level.

Distributing protein intake into moderate doses (~20g) at regular intervals (~3h) post-exercise yields greater whole-body net protein balance than consuming larger doses (40g) less frequently, despite identical total daily protein intake.

If you are resistance training, do not just focus on hitting your total daily protein goal. Distribute that protein into moderate servings of roughly 20-40 grams every 3-4 hours. This pattern appears to maximize your body's net protein retention compared to eating the same amount in fewer, larger meals.

A formula-based low-calorie diet (800 kcal/day) supplemented with 200g non-starchy vegetables for 8 weeks serves as an effective weight loss induction phase for adults with obesity (BMI 30-39.9), provided participants achieve >4kg weight loss to qualify for maintenance.

To kickstart weight loss, use a structured 8-week program involving 800 kcal of formula meals daily, plus 200g of non-starchy vegetables. This creates a strong caloric deficit. You must lose at least 4kg in these 8 weeks to move to the next phase of personalized maintenance.

For long-term weight maintenance, a personalized energy intake calculated as 10% below Resting Metabolic Rate (RMR) multiplied by Physical Activity Level (PAL) is used, combined with either a low-carb (30% carb) or low-fat (25% fat) diet.

Maintain your weight by eating slightly less than your body burns at rest (minus 10%). You can choose a low-carb approach (30% carbs) or a low-fat approach (25% fat). Use digital tools or newsletters for ongoing support to stay on track for 12 months.

An 8-week combined intervention of Baduanjin (moderate-intensity mind-body exercise) and a low-carbohydrate diet (70-130g carbs/day) significantly reduces body weight, BMI, waist circumference, and body fat percentage in overweight individuals with drug addiction compared to general physical activity alone.

For overweight individuals in recovery, combining a structured, moderate-intensity mind-body exercise like Baduanjin (approx. 60 mins, 5x/week) with a low-carbohydrate diet (70-130g carbs daily) for 8 weeks can significantly reduce body weight and fat. Light activity alone is likely insufficient for weight loss in this demographic.

A digitally enabled cardiometabolic lifestyle intervention involving personalized coaching on nutrition and physical activity significantly improves lipid profiles (total cholesterol, LDL, triglycerides, HDL) in adults with baseline dyslipidemia.

If you have high cholesterol or triglycerides, a structured 16-week program that combines digital tracking with regular coaching from health professionals can significantly improve your lipid levels. Focus on the specific dietary and activity advice provided for your risk profile rather than generic advice.

Resistance training with heavy loads performed at maximal volitional velocity yields superior power gains compared to light-load power training, contradicting the view that lighter loads are inherently superior for power output.

To build power, you must lift heavy weights (relative to your strength) but move them as fast as you possibly can. Do not move slowly even if the weight is heavy. The speed of your intent matters more than the absolute weight number for power development.

Adjuvant semaglutide at lower doses (≤1 mg/week) achieves clinically significant weight loss (median 7.5% TWL) in post-bariatric surgery patients with refractory obesity, with a favorable side effect profile compared to higher doses.

If you have had bariatric surgery and are experiencing weight regain or insufficient loss, ask your doctor about adjuvant semaglutide. You may not need the highest dose (2.4 mg); many patients achieve significant weight loss (around 7.5% of total body weight) at lower doses (1 mg or less). This approach is often more affordable, has fewer side effects, and is sufficient for long-term management, especially if supply of higher doses is an issue.

Regular supervised walking significantly improves glycemic control (HbA1c) in type 2 diabetes patients, with supervised programs showing statistically significant benefits compared to non-supervised ones.

If you have Type 2 Diabetes, aim for at least 150 minutes of moderate walking per week, spread over at least three days. Supervised walking programs appear to offer better glycemic control than unsupervised efforts. If you cannot commit to long sessions, try breaking up long periods of sitting with short walks every 30 minutes.

Adherence to a healthy dietary pattern (high in fiber, low in fat/sugar) is significantly associated with a lower prevalence of cardiovascular risk factors, specifically obesity, hypertension, and high serum triglycerides, in middle-aged adults.

Focus on your overall dietary pattern rather than single nutrients. A 'good' pattern involves eating vegetables, fruits, nuts, and fish regularly, choosing whole grains and low-fat dairy, and limiting sweets, soda, and salty foods. Adhering to this pattern is strongly linked to lower risks of obesity, high blood pressure, and high triglycerides in middle age.

Post-bariatric patients with insufficient weight loss or weight regain achieve significant additional weight loss and comorbidity improvement when treated with GLP-1 receptor agonists (semaglutide or dulaglutide).

If you have had bariatric surgery and are not losing enough weight or are gaining it back, ask your doctor about GLP-1 medications like semaglutide or dulaglutide. These drugs can help you lose more weight and improve health conditions like high blood pressure and sleep apnea. They are taken as weekly injections and are generally well-tolerated, though nausea is a common side effect.

Semaglutide (Ozempic) induces significant weight loss in obese patients primarily through appetite suppression and reduced energy intake, with efficacy directly correlated to dosage.

Semaglutide is an effective tool for weight loss, working by reducing hunger and calorie intake rather than burning more fat directly. It requires a weekly injection with a specific titration schedule to manage side effects like nausea. While effective, it is not a magic bullet; long-term safety data is still emerging, and it is contraindicated for people with certain thyroid or pancreatic histories.

An 8-week combined functional strength and balance training program with nutrition education significantly improves grip strength, sit-to-stand functioning, and dynamic balance in older adults with pre-frailty and frailty.

If you are an older adult feeling frail, start with a structured program that focuses on functional movements like squats and stepping, performed twice a week. Focus on form first, then gradually increase difficulty. Combine this with eating more protein (aiming for 1.2g per kg of body weight) spread across your meals, using affordable sources like dairy, eggs, or beans. This approach improves your strength, balance, and ability to perform daily tasks without needing expensive equipment.

Whey protein hydrolysate (WPH) supplementation improves peak torque and muscle hypertrophy associated with strength training more effectively than whey protein concentrate (WPC) or whey protein isolate (WPI).

If your goal is maximizing strength and muscle size from training, choose Whey Protein Hydrolysate (WPH) over Concentrate (WPC) or Isolate (WPI). Take it before and immediately after your workout. While WPC and WPI support muscle protein synthesis, WPH is specifically noted to be more effective for improving peak torque and hypertrophy.