Browse the evidence

Synchronous online exercise programs reduce environmental barriers (transportation, weather, accessibility) and increase motivation and adherence in community-dwelling older adults compared to asynchronous or in-person formats.

If you are an older adult who struggles with getting to the gym due to driving, parking, or bad weather, try a live online group exercise class. The key is that it is 'synchronous' (live, real-time) with an instructor and other people, which provides accountability and motivation that pre-recorded videos often lack. Ensure you have a stable internet connection and a device (tablet/computer) to join via video call.

Combining GLP-1 based therapies (GBTs) with individualized nutritional and physical activity interventions is necessary to preserve lean muscle mass, mitigate gastrointestinal adverse effects, and optimize long-term weight management outcomes.

When starting a GLP-1 medication like Ozempic or Wegovy, do not rely on the drug alone. You must actively manage your diet and exercise. Aim for 1.2 to 1.5 grams of protein per kilogram of your body weight every day, and engage in resistance training (weight lifting) at least twice a week alongside 150 minutes of moderate cardio. If you experience nausea, eat smaller, more frequent meals and stay hydrated. This combination prevents muscle loss and helps you stick with the treatment.

A structured, telehealth-based Individualized Virtual Integrative Medicine (IVIM) protocol combined with semaglutide (branded or compounded) significantly enhances weight loss outcomes, achieving an average 19.5% total body weight reduction at 52 weeks.

If you have obesity and are using semaglutide, sticking to a structured care plan that includes regular medical check-ins, coaching, and app-based tracking can lead to significant weight loss (approx. 20% over a year). This holds true whether you use the branded version or a compounded version, provided you maintain continuous therapy without gaps. The key is adherence and managing side effects through professional support.

To preserve skeletal muscle mass during obesity treatment with obesity medications (OMs) or caloric restriction, patients should consume 0.8 g/kg/day of high-quality protein (minimum 60-80 g/day), with higher requirements (1.0-1.5 g/kg/day) for older adults and those with chronic diseases.

If you are losing weight with medication or diet, prioritize protein. Aim for 0.8 grams of protein per kilogram of your body weight daily, or at least 60-80 grams. If you are older or have chronic health conditions, aim higher (1.0-1.5 g/kg). Combine this with resistance exercise to protect your muscle.

Integrating GLP-1 receptor agonist therapy with intermittent fasting and protein-optimized resistance training preserves lean mass and improves metabolic outcomes more effectively than either intervention alone.

Start GLP-1 therapy as prescribed to manage appetite. Use this reduced hunger to gradually adopt time-restricted eating (e.g., 16:8). Prioritize high-protein meals during your eating window and engage in resistance training 2-3 times per week to protect muscle. This combination aims to maximize fat loss while minimizing muscle loss and long-term drug costs.

Anti-obesity medications (AOMs), particularly semaglutide, produce statistically significant weight reduction in older adults (≥65 years), with the strongest evidence supporting their use in those with established cardiovascular disease.

If you are 65 or older and have obesity, anti-obesity medications like semaglutide can help you lose weight, especially if you have heart disease. The weight loss is significant (around 7-8% in major trials), but you may experience more side effects like nausea or dizziness. Work with your doctor to start slowly and monitor your health.

A comprehensive, team-based lifestyle intervention combining dietary education, supervised exercise, and behavioral counseling yields moderate but significant weight loss (mean 4.8 kg) and improved body composition in obese adults over one year.

To lose weight sustainably, combine dietary changes with regular exercise and behavioral support. This specific program used 25 sessions over a year, including medical check-ins, dietitian advice, cooking classes, and supervised exercise. The key was not just the activity, but the structured support and motivation to maintain these changes long-term.

Combining GLP-1 pharmacotherapy with promyogenic agents (e.g., bimagrumab, enobosarm), structured resistance exercise, and targeted nutrition (protein/HMB) mitigates lean mass loss and improves functional outcomes compared to GLP-1 monotherapy.

Do not rely on GLP-1 medication alone. To protect your muscles and strength, you must combine your medication with resistance exercise, ensure you are eating enough protein, and ask your doctor about emerging combination therapies like promyogenic agents that specifically target muscle preservation.

Higher training volume (moderate to high) is associated with higher responder rates for muscle hypertrophy compared to low volume, although intensity can compensate for low volume.

If you have time to train, moderate to high volume (8-24 sets per muscle group per week) is likely to yield better hypertrophy results than very low volume. However, if you are time-crunched, high-intensity low-volume training can still be effective. Prioritize consistency and intensity over sheer volume if necessary.

Muscle strength responsiveness is influenced by training intensity and specificity of the test, with higher loads generally leading to greater strength gains, and test specificity affecting the observed response.

To maximize strength gains, prioritize higher loads (e.g., 70-90% 1RM) over very light weights. Ensure your training intensity matches the goal of strength. If you are new to training, start with moderate loads and progressively increase intensity.

A holistic primary care model combining carbohydrate reduction (targeting <130 g/day), health coaching, and community support significantly reduces HbA1c and achieves diabetes reversal or remission in patients with type 2 diabetes and prediabetes.

To manage type 2 diabetes or prediabetes, reduce your daily carbohydrate intake to below 130 grams, focusing on whole foods. Engage with a health coach for behavioral support and join community groups for peer encouragement. Monitor your HbA1c regularly with your doctor, and be prepared for potential medication adjustments as your blood sugar improves. This approach has been shown to reverse diabetes in a significant portion of patients in real-world settings.

Weight loss is significantly associated with greater HbA1c reduction in patients following a carbohydrate-reduced diet.

Losing weight will significantly improve your blood sugar levels. For every kilogram you lose, your HbA1c is expected to drop by approximately 0.56 mmol/mol. Focus on sustainable weight loss through the carbohydrate-reduced diet and health coaching.

Phenotype-guided interventions (tailoring diet, medication, or exercise based on specific metabolic/behavioral traits like satiation or emotional eating) result in greater weight loss compared to non-phenotype-guided standard care.

Consider getting assessed for specific metabolic and behavioral traits (like how you feel after eating, your emotional triggers, or your resting metabolic rate). Tailoring your diet and medication choices to these specific traits may lead to significantly better weight loss results than following a generic plan.

Achieving a BMI <25 kg/m2 is associated with a significantly greater reduction in predicted 10-year atherosclerotic cardiovascular disease (ASCVD) risk compared to maintaining a BMI ≥25 kg/m2, regardless of whether the weight loss is achieved via tirzepatide or placebo.

If you have obesity or overweight, aiming for a BMI below 25 kg/m2 may offer greater protection against heart disease and stroke than stopping at a smaller weight loss. This target is increasingly achievable with modern medications like tirzepatide, which help achieve significant weight reduction. While current guidelines suggest 5-15% weight loss, this analysis indicates that reaching a 'normal' BMI might provide additional cardiovascular benefits, particularly for those with existing risk factors like high blood pressure or NAFLD.

Combined aerobic and resistance exercise provides additive or synergistic benefits for MASLD by simultaneously enhancing oxidative metabolism and increasing skeletal muscle mass.

For the best results, combine aerobic exercise (like brisk walking or cycling) with resistance training (like weight lifting). Aim for 150-300 minutes of moderate aerobic activity and 2-3 resistance sessions per week. This combination targets both your liver's fat processing and your muscle's ability to use energy, providing a comprehensive metabolic benefit.

High-level natural bodybuilders optimize muscle hypertrophy during pre-contest preparation by performing approximately 8–17 direct weekly sets per muscle group, training each muscle group 2–3 times per week, and utilizing a primary repetition range of 6–10 reps performed to or near failure.

If you are a natural trainee aiming for muscle growth, aim for 8 to 17 hard sets per muscle group each week. Split these sets across 2 or 3 training sessions for that muscle (e.g., chest on Monday and Thursday). Use weights that allow you to complete your reps with only 0-4 reps left in the tank. This moderate volume is what elite natural competitors use to maximize muscle while managing recovery.

A structured, physiotherapy-led eHealth tier 2 weight management program (12 weeks, 60 mins/week) significantly reduces body weight and BMI in adults with obesity, with effects observed across diverse ethnic and socioeconomic groups.

If you have obesity and are referred to a structured 12-week digital weight management program by your doctor, you can expect to lose an average of 3-4 kg (about 4% of body weight) if you complete the program. The program includes weekly 1-hour online sessions with a physiotherapist, combining exercise and nutrition education. It works for people of all ethnicities and income levels, but you need internet access and a device. The key to success is attending at least 75% of the sessions.

Full-time holistic sports nutrition support utilizing behavior-change techniques and supplemental protein significantly improves within-day protein distribution in provincial academy rugby players, increasing intake at multiple feeding occasions toward recommended thresholds.

If you are an athlete trying to optimize your protein intake, simply buying protein powder isn't enough. You need a structured support system. This study shows that combining education, regular check-ins with a nutritionist, and the availability of supplements helps athletes actually distribute their protein evenly across meals (e.g., breakfast, snacks, post-workout). This behavioral approach successfully shifted intake patterns, even if it didn't immediately change body composition in this short timeframe.

Optimizing within-day carbohydrate distribution is critical for rugby players with congested schedules, as inadequate post-training carbohydrate intake may compromise substrate availability for subsequent evening sessions.

For rugby players training twice a day, when you eat carbohydrates matters as much as how much. The study showed that despite intervention, players didn't improve their post-morning training carb intake, and actually ate less carbs later in the day. This suggests that without specific guidance, athletes may neglect refueling between sessions, potentially impacting evening performance. Prioritize quick carbs immediately after morning training to fuel the evening session.

Resistance training reduces the loss of lean body mass during diet-induced weight loss, particularly in older adults with obesity.

If you are losing weight, include resistance training to protect your muscle mass. This is especially important if you are older. Aerobic exercise alone may not preserve muscle as effectively as resistance training.

Whole-food, nutrient-dense diets that reduce ultra-processed food consumption are effective for weight management and metabolic health.

Focus on eating whole, nutrient-dense foods and minimize ultra-processed foods. This approach supports weight management and metabolic health through energy balance, hormonal regulation, and gut microbiota effects.

High-protein diets (25-30% of calories) preserve lean muscle mass and improve metabolic parameters like insulin sensitivity during weight loss.

Increase protein intake to 25-30% of your daily calories to preserve muscle and improve metabolic health. Ensure you consume high-quality protein sources and balance with carbs and fats.

A carbohydrate-restricted diet (≤30g carbs/day) produces greater weight loss and greater improvements in triglyceride levels and insulin sensitivity compared to a calorie- and fat-restricted diet in severely obese subjects over six months.

If you are severely obese (BMI 35+) and have diabetes or metabolic syndrome, restricting carbohydrates to 30 grams per day for six months leads to significantly more weight loss and better triglyceride levels than a standard low-fat, calorie-restricted diet. However, adherence is difficult, with nearly half of participants dropping out, so strong support and counseling are essential.

Behavioral support and exercise significantly modify weight loss outcomes, with behavioral support being particularly impactful at 6 months and exercise becoming more impactful at 12 months.

Don't rely on diet alone. Add structured behavioral support (like counseling or group meetings) early on, and incorporate regular exercise. These factors become increasingly important for maintaining weight loss after the first 6 months.