Browse the evidence

Resistance and nonresistance exercise suppress muscle protein synthesis (MPS) during the activity itself, but both types stimulate MPS significantly in the postexercise period, creating a window for muscle growth when combined with nutrient intake.

Your muscles are not building protein while you are lifting weights; in fact, synthesis drops during the activity to prioritize energy for movement. The actual building process (MPS) ramps up significantly *after* you finish exercising. To capitalize on this post-exercise window, you must consume protein (amino acids) to shift your body from a negative to a positive protein balance.

Resistance exercise intensity affects myofibrillar protein synthesis (MPS) in a dose-dependent manner at low intensities, plateauing between 60-90% of 1RM, while training status alters the specific protein fractions synthesized (myofibrillar vs. mitochondrial).

For muscle growth, you do not need to lift at maximum capacity. Research indicates that myofibrillar protein synthesis plateaus between 60% and 90% of your one-repetition maximum. Focus on this moderate-to-high intensity range for efficient hypertrophy.

Adherence to a DASH diet for 8 weeks significantly improves weight loss, BMI, liver enzymes (ALT, ALP), insulin resistance (HOMA-IR), and inflammatory/oxidative stress markers (hs-CRP, MDA, NO, GSH) in overweight/obese adults with NAFLD compared to a calorie-restricted control diet.

If you have NAFLD, switching to a DASH-style diet for 8 weeks while maintaining your usual activity level can lead to better weight loss and improved liver health than just cutting calories alone. Focus on fruits, vegetables, whole grains, and low-fat dairy, while limiting saturated fats and sodium. The study used a moderate calorie deficit (350-700 kcal below maintenance) to ensure ethical weight loss in both groups, but the DASH composition drove superior metabolic outcomes.

In patients with Type 2 Diabetes, long-term high-MUFA diets reduce glycosylated hemoglobin (HbA1c) and fasting glucose.

If you have Type 2 Diabetes, incorporating more monounsaturated fats (like olive oil or nuts) into your diet, while keeping calories steady, can help lower your long-term blood sugar levels (HbA1c).

Maintaining high levels of habitual physical activity (defined as meeting or exceeding Health and Human Services recommendations of ~150 minutes/week of moderate activity) over a 20-year period significantly attenuates age-related weight gain in young adults transitioning to middle age, with a more pronounced effect in women.

To prevent age-related weight gain, aim to maintain a consistent level of physical activity equivalent to at least 150 minutes of moderate-intensity exercise per week. This study shows that maintaining this level over 20 years, particularly for women, significantly reduces the amount of weight gained as you transition from young adulthood to middle age. While men may experience some compensatory increase in appetite, the net effect of maintaining this activity level is still a substantial reduction in weight gain compared to being sedentary.

A fully automated, algorithm-driven behavioral intervention delivered via web, email, and mobile phone significantly improves glycemic control (fasting glucose and HbA1c) and reduces body weight in adults with prediabetes compared to a wait-list control group.

If you have prediabetes, a fully automated digital program that sends you weekly goals and reminders via email and phone can help you lose weight and improve your blood sugar levels. You don't need expensive personal coaching; the system uses algorithms to tailor small steps for diet and exercise. Consistency is key, as participants who engaged with the program regularly saw the best results.

Heavy resistance strength training produces significant muscle hypertrophy in older adults (65-75 years) comparable to young adults (20-30 years) when using the same relative training stimulus.

If you are an older adult, you can build significant muscle mass through strength training. The key is using heavy resistance that challenges you, similar to how younger people train. Don't let the myth of 'anabolic resistance' stop you; your muscles can still grow if you lift heavy enough.

Social marketing interventions that fully apply Andreasen’s six benchmark criteria (consumer focus, formative research, segmentation, exchange, marketing mix, competition analysis) are significantly more effective at changing healthy eating behaviors than those relying primarily on communication or advertising.

If you are designing a health program, do not just rely on posters or messages. You must use formative research to understand your audience's barriers and motivators, segment your audience, offer immediate value (exchange), and address competing factors (like cost or convenience). This comprehensive approach is statistically more likely to result in actual behavior change than communication-only campaigns.

Intermittent energy restriction (2 days/week of 500-600 kcal) is clinically equivalent to continuous energy restriction (1200-1500 kcal/day) for improving glycemic control (HbA1c) in patients with type 2 diabetes over 12 months.

If you have type 2 diabetes, eating very little (500-600 calories) on just two days a week can lower your blood sugar (HbA1c) just as effectively as eating less every single day. However, you must work with your doctor to adjust diabetes medications, especially insulin or sulfonylureas, to avoid low blood sugar, particularly in the first few weeks.

Beta-alanine supplementation significantly improves exercise capacity (time to exhaustion) and performance in high-intensity exercise lasting 60–240 seconds, but provides no benefit for exercise lasting less than 60 seconds.

If you engage in high-intensity efforts lasting 1 to 4 minutes (like a 400m run or a hard interval session), beta-alanine supplementation can improve your performance by roughly 3% on average. It will not help you in very short, explosive sprints under 60 seconds. To get benefits, you need to supplement daily for several weeks to build up muscle carnosine levels; there is no advantage to taking massive doses, so stick to standard daily regimens (e.g., 3-6g/day).

Low energy availability (EA), defined as inadequate energy intake relative to exercise energy expenditure, is the primary trigger for Relative Energy Deficiency in Sport (RED-S), leading to compromised physiological processes including menstrual dysfunction, bone stress injuries, and impaired sports performance.

If you are an athlete training hard, you must eat enough to cover your exercise energy expenditure plus your body's basic needs. If you consistently eat less than this, you risk menstrual dysfunction, bone stress injuries, and lower performance. Do not rely on feeling 'fine'; use validated screening tools like the LEAF-Q if you are female, and consult a sports dietitian to ensure your energy intake matches your training load.

Plant sterols and stanols (PS/PS) reduce LDL-C by 8-12% through competitive inhibition of intestinal cholesterol absorption, with efficacy plateauing at approximately 3 g/day.

If you have moderately elevated cholesterol and are not on statins, adding 2-3 grams of plant sterols/stanols daily (found in fortified spreads or supplements) can lower your LDL by about 10%. Take them with meals, preferably in fat-based spreads like canola oil, to maximize absorption. This is not a substitute for statins if you are at high cardiovascular risk.

Soluble fibers (beta-glucan, psyllium, glucomannan) reduce LDL-C by 5-15% through mechanisms including bile acid excretion and increased fecal cholesterol excretion, with additional benefits on triglycerides for glucomannan.

Incorporate 5-10 grams of soluble fiber daily. Oats (beta-glucan) and psyllium husk are effective for lowering LDL. If you also have high triglycerides, glucomannan (konjac root) may offer additional benefits. Start with a lower dose to minimize gastrointestinal side effects like bloating.

Remote patient monitoring interventions that include personalized coaching, health behavior models, or clinician feedback loops are more successful in improving clinical outcomes than RPM alone.

If you use RPM, ensure it includes a human element. Look for programs that offer personalized coaching, group-based behavioral therapy, or active clinician feedback. These components are what drive success, not the device itself.

Moderate to vigorous physical activity attenuates the obesity risk associated with the FTO gene risk alleles, reducing the effect size by approximately 30% in adults.

If you carry the FTO risk gene, regular moderate-to-vigorous physical activity is your most powerful tool. It can reduce your genetic risk for obesity by about 30%. You do not need to be an elite athlete; consistent activity is sufficient to counteract this specific genetic predisposition.

Unimolecular GLP-1/GIP co-agonists (e.g., tirzepatide) produce superior weight loss and glycemic control compared to GLP-1 receptor agonists alone in patients with type 2 diabetes and obesity.

If you have type 2 diabetes or obesity, current GLP-1 medications (like semaglutide) are effective but not the most powerful option available. Newer 'co-agonist' drugs (like tirzepatide) that target both GLP-1 and GIP receptors have shown greater weight loss and better blood sugar control in clinical trials. While these are injections, they are given once a week. The main trade-off is potential gastrointestinal side effects like nausea, though these may be less severe than with some GLP-1-only drugs. Consult your doctor to see if this advanced therapy is appropriate for your specific health profile.

Increasing protein intake to approximately 2.3 g/kg/day during a hypoenergetic diet preserves lean body mass in resistance-trained athletes compared to a standard protein intake of 1.0 g/kg/day.

If you are a resistance-trained athlete cutting weight, increase your protein to roughly 2.3 grams per kilogram of body weight daily. Keep your training volume and intensity normal. This strategy will significantly reduce the amount of muscle you lose during your caloric deficit compared to eating standard protein levels, without hurting your strength or power performance.

High-intensity interval training (HIIT) is superior to moderate-intensity continuous training (MICT) for improving cardiorespiratory fitness in cardiac rehabilitation patients, with significant benefits observed in programs lasting 7–12 weeks.

If you have coronary artery disease and are in cardiac rehab, High-Intensity Interval Training (HIIT) is likely more effective than moderate continuous exercise for improving your heart fitness. Look for programs that last 7 to 12 weeks and use intervals at 85% or more of your max capacity. These programs are supervised and have been shown to be safe, with no increased risk of cardiac events compared to moderate exercise.

Behavioral interventions involving caloric restriction, dietary restructuring, and moderate-intensity physical activity are effective in reducing weight and preventing further weight gain in patients with schizophrenia.

Start with small, manageable changes: reduce calories by 500-750 per day, eat more fiber and less fat, and aim for 24 minutes of moderate exercise daily. Consistency is key, and working with a professional who understands schizophrenia can help overcome executive function challenges.

Repeated sprint training in hypoxia (3000m simulated altitude) significantly increases the number of sprints to exhaustion compared to normoxic training, despite similar average power output improvements, by enhancing muscle blood perfusion and glycolytic capacity.

If you are a trained cyclist, adding 8 sessions of repeated sprint training in a hypoxic chamber (simulating 3000m) over 4 weeks can help you perform more sprints to exhaustion than if you did the same training in normal air. This happens because hypoxia triggers your body to increase blood flow to muscles and boost glycolytic enzymes, allowing you to delay fatigue during repeated high-intensity efforts. However, this does not necessarily increase your single-sprint peak power or your aerobic endurance (VO2max).

Lifestyle interventions, specifically caloric restriction and exercise, are the foundational first-line treatment for NAFLD, capable of inducing 5-10% weight loss and improving insulin resistance and hepatic steatosis.

Start with lifestyle changes as your primary treatment. Aim for a 5-10% reduction in body weight through a combination of a Mediterranean-style diet (high in plants, healthy fats) and regular exercise (both resistance and aerobic). This is the foundational step recommended by major guidelines before considering medications.

Regular moderate-intensity aerobic exercise training prevents type 2 diabetes development and attenuates its progression by reducing oxidative stress and low-grade inflammation, thereby improving insulin sensitivity and glycemic control.

Engage in moderate-intensity aerobic exercise (like brisk walking, cycling, or swimming) for about 1 hour, 3 times a week. You do not need to lose weight for this to help your blood sugar control. The key is consistency and maintaining this routine over at least 12 weeks to see significant improvements in insulin sensitivity and blood pressure.

Adoption of a 'Western diet' high in saturated fats and sugars, combined with sedentary behavior, significantly increases the prevalence of obesity, high cholesterol, hypertension, and type 2 diabetes.

Reducing saturated fat and sugar intake while increasing physical activity is critical to lowering the risk of chronic diseases like heart disease and diabetes, especially for lower-income groups who are disproportionately affected.

Preconception folic acid and multivitamin supplementation significantly reduce the risk of congenital heart defects and preeclampsia.

Taking a multivitamin with folic acid before pregnancy can lower your risk of heart defects in the baby and preeclampsia. While food is important, supplements ensure you get adequate levels during the critical early weeks.