Browse the evidence

Reducing dietary energy density (consuming larger portions of lower-calorie foods) improves satiety and aids weight loss maintenance, regardless of total caloric intake in the short term.

To make your diet easier to stick to, choose foods that are less energy-dense. This means eating more vegetables, fruits, and lean proteins relative to fats and sugars. You can eat larger portions of these foods, which helps you feel fuller for longer, making it easier to maintain a calorie deficit without feeling deprived.

Subcutaneous Tirzepatide significantly reduces body weight, BMI, and waist circumference in adults with obesity or type 2 diabetes compared to placebo.

If you have obesity or type 2 diabetes and lifestyle changes haven't been enough, Tirzepatide is a highly effective, once-weekly injection that significantly reduces weight, BMI, and waist circumference. The effect is dose-dependent, with higher doses (up to 15mg) yielding greater weight loss. Be prepared for potential gastrointestinal side effects like nausea, which are common but often manageable.

In real-world clinical practice, tirzepatide produces significantly greater weight loss and higher rates of achieving clinically meaningful weight loss thresholds (≥5%, ≥10%, ≥15%) compared to semaglutide in adults with overweight or obesity.

If you are using tirzepatide (Mounjaro) or semaglutide (Ozempic) for weight loss, real-world data suggests that tirzepatide is more effective at helping you lose significant amounts of weight (10% or more of your body weight) compared to semaglutide. You are also more likely to reach these milestones faster with tirzepatide. However, both drugs carry similar risks of gastrointestinal side effects, so tolerability is a key factor in choosing between them.

Tirzepatide produces significantly greater weight loss than semaglutide in adults with obesity or overweight, with the magnitude of loss increasing with higher doses (>10 mg) and longer treatment durations (>6 months).

If you are using semaglutide and not achieving your weight loss goals, switching to tirzepatide (particularly at doses above 10 mg and continuing for more than 6 months) is likely to result in significantly greater weight loss. The data supports tirzepatide as a more potent option for reducing body weight compared to semaglutide.

Increasing physical activity (specifically total, light, and moderate-to-vigorous activity) or decreasing sedentary time during a dietary energy restriction intervention is associated with a faster rate of weight loss in women with overweight and obesity.

If you are on a calorie-restricted diet to lose weight, try to stay active or increase your daily movement. This paper shows that people who increased their physical activity (even light activity) or reduced their sitting time lost weight faster than those who became more sedentary. You don't need to start a rigorous gym routine; simply maintaining or slightly increasing your daily steps and reducing sedentary time can help you reach your goal sooner.

Increases in total and moderate-to-vigorous physical activity (MVPA) during the post-weight loss maintenance phase are associated with less weight regain (or greater weight loss) one year after the intervention.

After you reach your weight loss goal, don't stop moving. This study found that people who kept up or increased their moderate-to-vigorous exercise (like brisk walking or jogging) after losing weight were much more likely to keep it off one year later. Treat your post-goal activity as a permanent part of your lifestyle, not just a tool for getting to the goal.

A 3-month calorie-restricted ketogenic diet (KD) produces significantly greater weight loss than a calorie-restricted Mediterranean diet (MedDiet) in adults with obesity.

To lose more weight than a standard Mediterranean diet in 3 months, switch to a ketogenic diet with a 600-calorie daily deficit. This means eating very few carbs (5% of calories), moderate protein (30%), and high fat (65%). Ensure you are consuming enough calories to maintain basic function but below your maintenance level.

Modified Alternate-Day Fasting (mADF) produces significantly greater weight loss than a calorie-restricted Mediterranean diet (MedDiet) in adults with obesity.

Try modified alternate-day fasting: eat normally (but within your calorie limit) 4 days a week, and restrict calories to 400-800 on the other 3 days. This approach may yield better weight loss than a standard Mediterranean diet.

Late Time-Restricted Eating (lTRE) with an 8-hour window (2 pm - 10 pm) produces significantly greater weight loss than a calorie-restricted Mediterranean diet (MedDiet) in adults with obesity.

Try late time-restricted eating: restrict your eating to an 8-hour window from 2 pm to 10 pm. Ensure you are eating a balanced diet (45% carbs, 20% protein, 35% fat) with a 600-calorie daily deficit. This may yield better weight loss than a standard Mediterranean diet.

Weekly administration of semaglutide at 2.4 mg induces significant weight loss (mean 14.9%) and improves glycemic control (HbA1c < 7.0% in 57-74% of patients) in adults with obesity or type 2 diabetes, with effects proportional to dose and duration.

If you have obesity or type 2 diabetes, weekly semaglutide (2.4 mg for weight loss, 1-1.0 mg for diabetes) is a highly effective treatment that can lead to significant weight loss (up to 15%) and better blood sugar control. While nausea and vomiting are common side effects, they are usually mild and temporary, and weight loss often occurs regardless of whether you experience them. An oral version is also available if you prefer to avoid injections. Discuss this with your doctor to see if it's right for you.

Tirzepatide produces significantly greater weight loss than semaglutide in overweight and obese adults, with a standardized mean difference of 0.75 favoring tirzepatide.

If you are choosing between tirzepatide and semaglutide for weight loss, current direct comparative evidence suggests tirzepatide may lead to greater weight reduction. This benefit comes with a dual-hormone mechanism (GIP/GLP-1) and requires weekly injections. You should expect potential gastrointestinal side effects during dose increases, which are usually manageable. Combining the medication with diet and exercise will likely enhance results.

Tirzepatide significantly increases the odds of achieving clinically meaningful weight loss (≥10% body weight reduction) compared to semaglutide.

A key benefit of tirzepatide over semaglutide is the increased likelihood of losing 10% or more of your body weight, a threshold often associated with significant health improvements. This makes tirzepatide a potentially more effective option if your primary goal is substantial weight reduction. Discuss with your provider whether this higher efficacy profile aligns with your health goals.

Oral semaglutide (50 mg once daily) is effective for weight loss in non-diabetic obese/overweight adults, though generally less effective than the subcutaneous 2.4 mg formulation.

If you prefer not to use injections, oral semaglutide (50 mg daily) is a viable option for weight loss in non-diabetic adults with obesity. It produces significant weight loss (average 15%), though it requires daily adherence. It is generally considered less effective than the weekly injectable form, so discuss with your provider which form best fits your lifestyle and medical needs.

Subcutaneous semaglutide 2.4 mg once weekly produces 15–17% mean weight loss and offers cardioprotection in obesity treatment.

If you have obesity, subcutaneous semaglutide 2.4 mg once weekly is an approved treatment that can help you lose 15–17% of your body weight and may protect your heart. This is significantly more effective than lifestyle changes alone, which often fail to maintain weight loss long-term.

Tirzepatide, a dual GLP-1/GIP receptor agonist, achieves up to 22.5% mean weight loss in phase 3 obesity trials.

Tirzepatide is a dual-acting hormone medication (GLP-1/GIP) that can lead to up to 22.5% weight loss in clinical trials, surpassing single-agonist GLP-1 drugs. It is available for obesity management.

Oral semaglutide 50 mg once daily results in 17.4% weight loss in people with obesity without type 2 diabetes.

For those who prefer not to inject medication, oral semaglutide 50 mg once daily can achieve 17.4% weight loss in people with obesity without diabetes, comparable to the injectable version.

Weight loss of 3-10% of baseline body weight reduces systolic and diastolic blood pressure by approximately 3 mmHg, independent of salt restriction, primarily through decreased sympathetic nervous system activity and improved insulin sensitivity.

If you have high blood pressure and are overweight, aim to lose just 3-10% of your current body weight. You do not need to reach a 'perfect' weight to see benefits; this modest loss can lower blood pressure by about 3 mmHg. Work with a dietitian to achieve this gradually using calorie reduction and behavioral strategies like appetite awareness, rather than crash dieting.

Regular physical activity, including aerobic, dynamic resistance, and isometric training, reduces blood pressure, with isometric training showing significant reductions when performed at ~30% of maximal voluntary contraction.

Engage in 150-300 minutes of moderate aerobic activity (like brisk walking) or 75-150 minutes of vigorous activity weekly. Add resistance training twice a week. If you have limited time or equipment, try isometric exercises (like wall sits or handgrips) at about 30% of your maximum effort. The key is consistency and reducing sedentary time.

Adoption of the DASH diet or similar healthy dietary patterns (high in fruits, vegetables, low-fat dairy, low in saturated fat/salt) reduces blood pressure and is recommended as a first-line intervention for hypertension management.

Adopt a DASH-style diet: eat more fruits, vegetables, and low-fat dairy, and reduce saturated fats and salt. This is a proven, first-line strategy to lower blood pressure. If cost or access is a barrier, focus on affordable staples like beans, rice, and seasonal produce, and seek guidance from healthcare providers on local resources.

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.

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.

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.