Browse the evidence

Behavioral commitments (e.g., verbal or written contracts) lead to significant short-term weight loss (pooled 1.52 kg) compared to controls.

Consider making a verbal or written commitment to your weight loss goals. This can create a sense of accountability and has been shown to lead to significant short-term weight loss.

Ingesting a leucine-enriched essential amino acid (EAA) gel (15g total EAA, 40% leucine) immediately following resistance exercise induces significant plasma aminoacidemia and enhances intramyocellular anabolic signaling (mTORC1 pathway) in both younger and older adults, effectively overcoming age-related blunting of the anabolic response.

If you are older and want to build or maintain muscle, standard protein powders might not be enough. You need a supplement specifically high in leucine (like this EAA gel) taken immediately after your strength training. This combination triggers the muscle-building signals in your body just as effectively as it does in younger people.

In individuals with chronic spinal cord injury, combining home-based neuromuscular electrical stimulation resistance training (NMES-RT) with daily leucine-enriched whey protein supplementation significantly increases thigh lean mass compared to NMES-RT alone.

If you have a spinal cord injury, doing resistance training with electrical stimulation (NMES) at home is effective for building leg muscle. Adding a daily whey protein supplement (specifically one with leucine) on top of this training yields significantly more muscle growth than training alone. Consistency is key, as adherence was very high in this study.

GLP-1 receptor agonists (GLP-1 RAs) including dulaglutide, subcutaneous semaglutide, and oral semaglutide produce significant weight loss and BMI reduction in patients with type 2 diabetes and obesity, with oral semaglutide achieving the highest proportion of patients reaching the clinically significant ≥5% weight loss threshold.

GLP-1 medications like dulaglutide and semaglutide (oral and injectable) are effective for weight loss in people with type 2 diabetes and obesity. In this study, about half of the patients lost at least 5% of their body weight in just 3 months. Oral semaglutide was the most effective at getting patients to this 5% threshold. However, gastrointestinal side effects are common, and many patients do not reach the maximum dose. If you tolerate the medication, reaching the maximum dose is linked to better weight loss results. Consult your doctor about titration to maximize benefits.

Protein supplementation (specifically whey) reduces musculoskeletal injury rates and missed training days in active-duty military personnel compared to no supplementation, with a dose-response effect observed for two servings per day.

If you are in high-intensity military or tactical training, consuming two servings of whey protein daily (approx. 77g) after training and before bed significantly reduces your risk of injury compared to not supplementing. This benefit was not seen with just one serving, suggesting a threshold effect.

In patients with type 2 diabetes, achieving >=10% weight loss in the first year of lifestyle intervention is associated with a significantly reduced risk of the primary composite cardiovascular outcome and cardiovascular death/MI/stroke.

If you are doing lifestyle changes for diabetes, aiming for a 10% weight loss in the first year is a strong predictor of better heart health outcomes, including reduced risk of heart attack and stroke. This benefit exists even if the overall trial didn't show a statistically significant difference for everyone.

GLP-1 agonist monotherapy (semaglutide or liraglutide) produces significantly greater weight loss and higher rates of achieving >5% and >10% weight loss compared to metformin monotherapy in patients with PCOS and obesity over a six-month period.

If you have PCOS and obesity, GLP-1 medications like semaglutide or liraglutide are likely more effective for weight loss than metformin alone. In this study, most patients on GLP-1 lost over 5% of their body weight, compared to only a quarter of those on metformin. Talk to your doctor about whether these medications are appropriate for you, considering potential side effects and cost.

Regular use of a web-based behavioral weight management program (BMIQ) combined with standard medical care (physician/RD visits and pharmacotherapy) significantly increases the likelihood of achieving clinically significant weight loss (≥5% and ≥10%) compared to standard care alone.

If you are struggling with weight loss despite seeing a doctor and dietitian, ask about adding a structured online behavioral program. This study suggests that engaging with at least 4 online sessions over 6 months, alongside your medical treatments, significantly boosts your chances of losing 5-10% of your body weight. It’s not a replacement for medical care, but a powerful tool to make your existing care more effective.

High-intensity interval training (HIIT) improves insulin sensitivity and glycaemic control in reproductive-aged women with overweight/obesity with greater time efficiency and adherence than traditional moderate-intensity endurance training.

If you have excess weight and want to improve your blood sugar control without spending hours at the gym, try High-Intensity Interval Training. The protocol described involves three weekly sessions totaling about 109 minutes, mixing short bursts of near-maximal effort with recovery periods. This approach is designed to be more time-efficient than traditional steady-state cardio while delivering comparable or better metabolic benefits for women in your demographic.

An adaptive, algorithm-driven text message intervention (TMI) significantly improves adherence to diet, physical activity, and diabetes self-care behaviors in patients with Type 2 Diabetes.

If you have Type 2 Diabetes and struggle to stick to your diet or exercise routine, an adaptive text message program can help. This program sends you daily tips tailored to what you find most useful based on your feedback. Over 8 weeks, this personalized approach has been shown to significantly improve your adherence to diet, physical activity, and self-care tasks like blood sugar monitoring. It works by learning your preferences and focusing on what matters most to you, making it less burdensome and more effective than generic health advice.

Public health messaging should emphasize nutrient density and specific behavioral strategies (e.g., using smaller plates, adding vegetables) rather than abstract calorie reduction, as this approach is more actionable, culturally resonant, and less likely to induce deprivation.

Instead of telling people to count calories, advise them to 'fill up' on vegetables and use smaller plates. Focus on adding healthy foods to naturally crowd out less healthy options, which is easier to understand and sustain than restriction.

Using natural spoken language for food logging reduces the perceived burden and difficulty of tracking dietary intake compared to existing manual methods, thereby improving acceptability for sustainable weight management.

If you struggle to stick with food tracking because it feels like a chore, try a voice-activated logging app. This study suggests that speaking your meals into an app is perceived as easier and more accurate than typing or selecting from lists, which may help you stay consistent with tracking your intake.

Dietary protein intake of 2.37 g/kg/day is sufficient for muscle gain and maintenance in national-level powerlifters, rendering high-dose protein supplementation unnecessary for basic hypertrophy goals.

You do not need to force-feed yourself massive amounts of protein. A daily intake of around 2.4 grams per kilogram of body weight is sufficient for muscle maintenance and growth. Focus on hitting this target consistently rather than chasing extreme numbers.

A comprehensive 48-week lifestyle modification program (diet, exercise, behavioral counseling) produces clinically significant weight loss (≥5%) and improved glycemic control (HbA1c reduction) in patients with type 2 diabetes and obesity, significantly outperforming standard treatment alone.

If you have Type 2 Diabetes and are overweight, standard medical care alone is unlikely to produce significant weight loss. A structured 48-week program combining a moderate caloric deficit (500-1000 kcal/day), 40-60 minutes of daily physical activity (mix of cardio, strength, and flexibility), and regular behavioral counseling can help you lose at least 5% of your body weight and improve your blood sugar control. This approach is significantly more effective than routine care alone.

Personalized Behavioral Weight Loss (PBWL) optimizers (those who achieve ≥5% weight loss) lose significantly more weight than Standard BWL optimizers, suggesting personalization maximizes potential for responders.

If you are a 'responder' to weight loss interventions, personalizing your diet and activity based on your body's feedback (like glucose response) can nearly double your weight loss compared to standard advice. Find your 'best fit' prescription early.

High digital engagement (defined as attending ≥1 coaching session, logging weight ≥4 times/month, and using app features) significantly enhances weight loss efficacy and accelerates milestone achievement in patients treated with dual GIP/GLP-1RA or GLP-1RA, without increasing safety risks.

To get the most out of your GLP-1 or dual GIP/GLP-1RA medication, actively use the digital support tools provided. This means attending at least one coaching session, logging your weight at least four times a month, and interacting with the app's educational features. This level of engagement is associated with losing 4.5% more body weight and reaching your weight loss goals faster, without increasing your risk of side effects. Treat these digital tools as essential parts of your treatment, not optional extras.

Professional male rugby league players require periodized carbohydrate intake of 6-8 g/kg/day during the season, with specific pre- and post-exercise protocols (1-4 g/kg pre-exercise; 1.0-1.5 g/kg post-exercise) to maximize glycogen availability and muscle protein synthesis.

For professional rugby players, do not eat the same amount of carbs every day. On heavy training or match days, aim for 6-8 grams of carbs per kg of body weight. Specifically, eat 1-4 grams of carbs (plus some protein) 1-4 hours before playing, and 1-0-1.5 grams of carbs (plus protein) within 2 hours after finishing. This timing maximizes energy stores and muscle repair.

Supplementation with creatine monohydrate (loading 0.3 g/kg/day for 5-7 days or maintenance 3-5 g/day), caffeine (3-6 mg/kg, 1 hour pre-exercise), and beta-alanine (65-80 mg/kg/day) potentially improves performance, recovery, and adaptation in rugby league players.

Consider adding specific supplements if your diet is already optimized. For creatine, use a loading phase (0.3 g/kg/day for 5-7 days) or maintenance (3-5 g/day). For caffeine, take 3-6 mg/kg about an hour before matches. For beta-alanine, take 65-80 mg/kg daily. Always check for banned substance lists.

Creatine supplementation increases strength, performance in short-duration high-intensity exercises, and total force by increasing ATP availability and potentially enhancing satellite cell differentiation.

If you do high-intensity or short-duration exercise, creatine is a safe and effective way to boost strength and performance. You do not need to worry about kidney damage or cramping if you are healthy.

Caffeine ingestion of moderate to high doses enhances endurance exercise, strength, and peak power performance.

If you engage in endurance, strength, or peak power activities, moderate to high doses of caffeine can enhance performance. Be aware of potential side effects like nervousness or sleep disturbances.

Beta-hydroxy-beta-methylbutyrate (HMB) supplementation enhances protein synthesis, reduces protein breakdown, and increases muscle size, strength, and aerobic performance when combined with exercise.

If you exercise, HMB supplementation can enhance muscle size, strength, and aerobic performance. It does not work without exercise.

Increasing dietary protein and fiber density (g/100 kcal) while reducing total energy intake significantly correlates with greater weight loss in a self-selected dietary weight-loss program.

To lose weight sustainably, do not just count calories. Use a tool to track the density of protein and fiber in your meals. Aim for 7-11 grams of protein and 1.8-3.2 grams of fiber per 100 calories. This approach helps you preserve muscle and stay full while reducing total energy intake.

In overweight or obese adults, greater daily time spent in light-intensity physical activity (LPA) and moderate-to-vigorous physical activity (MVPA) is associated with lower 24-hour mean glucose concentration, greater time-in-range, and less time in hyperglycemia.

If you are overweight or obese, focus on moving more throughout the day, not just during workouts. Even light activity (like walking while on the phone or doing chores) helps keep your blood sugar levels stable. You do not need to be perfectly consistent day-to-day; just getting more total movement in is beneficial.

A two-meals-a-day ketogenic diet significantly improves weight, glycemic control, and lipid profiles in newly diagnosed obese patients with type 2 diabetes compared to a conventional energy-restricted diabetic diet.

For newly diagnosed obese diabetics not on medication, a modified ketogenic diet (2 keto meals, 1 regular meal) at ~1500 calories for 2 months can significantly improve weight, blood sugar, and cholesterol compared to standard advice. Be aware of potential uric acid increases and early hypoglycemia risk.