Browse the evidence

Combining time-restricted eating (8-hour window) with concurrent aerobic and resistance training significantly improves body weight, BMI, fat mass, and functional capacity in overweight/obese women compared to control or TRE-only groups, with no significant difference between early (4pm-8am) and late (12pm-8pm) eating windows.

To lose weight and improve fitness, combine an 8-hour eating window with 3 days per week of exercise (mix of cardio and weights). You can choose to eat early (e.g., 8am-4pm) or late (e.g., 12pm-8pm); both work equally well when you exercise. Ensure you eat enough calories (1200-1500 kcal) within that window and do not snack outside it. Consistency in both diet timing and exercise is key.

Alternate-day fasting (ADF) and time-restricted feeding (TRF) provide superior reductions in fasting glucose and LDL-cholesterol compared to continuous energy restriction (CER) and ad libitum diets, while offering similar weight loss benefits to CER.

If you are using intermittent fasting for heart health or blood sugar, choose your strategy carefully. Alternate-day fasting appears best for lowering bad cholesterol (LDL), while time-restricted feeding (eating within a specific window each day) is superior for lowering fasting blood glucose. Both methods lose weight similarly to standard calorie restriction, but offer these specific metabolic advantages.

Resistance training combined with high protein intake (1.6-2.0 g/kg/day) preserves or increases muscle mass during caloric restriction, whereas high protein intake alone is insufficient without resistance training.

To lose fat without losing muscle, you must lift weights (at least 10 sets per muscle group per week) and eat 1.6-2.0 grams of protein per kilogram of body weight daily. Do not rely on protein shakes or dieting alone.

Adding high-volume exercise (six sessions/week) to a caloric deficit completely preserves fat-free mass while maximizing fat loss in individuals with newly diagnosed type 2 diabetes, whereas lower exercise volumes fail to prevent fat-free mass loss.

If you have type 2 diabetes and are losing weight through diet, you must add exercise to protect your muscle. Aim for 6 days of exercise per week, combining cardio and resistance training, to maximize fat loss and keep your muscle mass. If 6 days is too much, 3 days still helps lose fat, but you might lose some muscle.

Combining flexible time-restricted eating (8-hour window) with aerobic exercise yields significantly greater fat mass reduction than either intervention alone in middle-aged women with overweight/obesity.

If you are a middle-aged woman with overweight or obesity, combining an 8-hour eating window with regular moderate aerobic exercise (like brisk walking or jogging) will result in significantly more fat loss than doing either one alone. You do not need to count calories or stick to fixed meal times; simply choose an 8-hour window each day that fits your schedule and stay active.

A plant-based caloric restriction diet (PB-CRD) using a '5+2' structured meal plan is non-inferior to conventional calorie-restricted diets (CRD) for weight loss in obese adults, while providing superior reductions in total body fat percentage and improvements in metabolic markers including insulin sensitivity, uric acid, and liver enzymes.

To lose weight and improve metabolic health, you can follow a structured plant-based diet that restricts calories to 1,300-1,600 kcal/day. You do not need to be vegan 7 days a week; eating standardized plant-based meals for 5 days and allowing flexible, calorie-controlled meals for 2 days is effective. This approach matches the weight loss of traditional calorie restriction but offers better improvements in body fat percentage, insulin sensitivity, and liver health.

Daily consumption of 100 mg Kaempferia parviflora extract (SIRTMAX®) for 12 weeks significantly reduces body fat mass and visceral fat area in overweight adults compared to placebo.

Take 100 mg of Kaempferia parviflora extract (SIRTMAX®) once daily before breakfast for 12 weeks. This specific extract has been shown in a clinical trial to significantly reduce body fat mass and visceral fat in overweight adults, even without changing diet or exercise habits. It is not a magic bullet, but it provides a measurable advantage over placebo.

Adults achieve substantial health benefits by undertaking 150–300 minutes of moderate-intensity or 75–150 minutes of vigorous-intensity aerobic physical activity per week, combined with muscle-strengthening activities on 2 or more days a week.

To improve your health, aim for 150-300 minutes of moderate aerobic activity (like brisk walking) or 75-150 minutes of vigorous activity (like running) each week. You can break this into smaller chunks; they don't need to be 10-minute blocks. Additionally, perform muscle-strengthening exercises involving all major muscle groups on at least two days a week. If you are currently inactive, start with small amounts and gradually increase. You do not need a doctor's clearance unless you have specific health conditions or symptoms.

Children and adolescents (5-17 years) should perform an average of 60 minutes per day of moderate-to-vigorous intensity aerobic physical activity, incorporating vigorous activity and muscle/bone strengthening at least 3 days a week.

Ensure children and teens get an average of 60 minutes of moderate-to-vigorous physical activity every day. This can include playing outside, walking, or sports. Include vigorous activities (like running) and muscle/bone strengthening exercises (like climbing or push-ups) at least 3 days a week. Limit recreational screen time.

High consumption of ultra-processed foods (UPFs) displaces minimally processed foods and is directly associated with unhealthy dietary nutrient profiles (high energy density, saturated/trans fats, free sugars; low fiber, micronutrients) and increased risk of diet-related non-communicable diseases including obesity, hypertension, and metabolic syndrome.

Prioritize whole, minimally processed foods (vegetables, fruits, grains, meats) and limit ultra-processed products (packaged snacks, sugary drinks, fast food). UPFs are engineered to be hyper-palatable and energy-dense, leading to overconsumption and nutrient deficiencies. Replacing UPFs with home-prepared meals improves nutrient quality and reduces chronic disease risk.

Genetic susceptibility to obesity, including variants like the FTO gene, can be counteracted by high levels of physical activity.

If you have a family history of obesity, do not assume it is inevitable. Engaging in high levels of physical activity can help counteract genetic risks associated with genes like FTO.

Adherence to a DASH-style diet (high in fruits, vegetables, whole grains, nuts, legumes, and low-fat dairy; low in sodium, sweetened beverages, and red/processed meats) is associated with a significantly lower risk of coronary heart disease and stroke in middle-aged women.

Adopt a DASH-style eating pattern by prioritizing fruits, vegetables, whole grains, nuts, legumes, and low-fat dairy, while minimizing red/processed meats, sodium, and sweetened beverages. This long-term dietary pattern is associated with a significantly lower risk of coronary heart disease and stroke in middle-aged women. Focus on consistent adherence over time rather than perfection.

Regular physical activity and exercise training (aerobic and strength) improve functional capacity, quality of life, and reduce cardiovascular risk in stroke survivors.

Start moving regularly with low-to-moderate intensity aerobic and strength exercises. Customize the plan to your current ability and stage of recovery. This improves your daily function, quality of life, and reduces the risk of another stroke. Consult a healthcare professional for a safe, tailored prescription.

Early mobilization and minimization of bed rest within 24 hours of stroke improves functional recovery and prevents complications of inactivity.

For acute stroke patients, begin simple movements like sitting or standing as soon as medically stable (within 24 hours). This prevents muscle loss and other complications of bed rest, leading to faster recovery of walking ability.

Long-term engagement in intentional physical activity is negatively associated with the incidence of non-communicable diseases, including coronary heart disease, type 2 diabetes, and dementia, in healthy adults.

Engage in regular, intentional physical activity throughout adulthood to significantly lower your risk of heart disease, diabetes, and dementia. You do not need elite-level training; consistent moderate activity (like brisk walking) is sufficient to yield long-term health benefits.

Combined resistance and endurance training is more effective than either type of exercise alone for improving functional mobility, walking, balance, and reducing falls risk in older people with moderate deficits or frailty.

If you are frail or have mobility issues, don't just walk or just lift weights. Do both. Aim for 2-3 sessions a week, about 45 minutes each. Include walking, chair rises, and balance exercises. This combination helps you move better, fall less, and stay healthier than doing just one type of exercise.

Consumption of beta-glucan (from oats or barley) significantly decreases serum total and LDL cholesterol and improves postprandial glucose and insulin levels in both healthy and hypercholesterolemic/diabetic subjects.

To lower LDL cholesterol, consume 3.6 to 5 grams of beta-glucan daily from oats or barley. Be aware that heavy processing (baking, extrusion) can destroy the molecular weight needed for this benefit. Whole oats or specific beta-glucan supplements are more reliable than highly processed oat products.

Explosive-type and heavy-resistance strength training can improve Rate of Force Development (RFD) in various populations, primarily by enhancing rapid muscle activation (neural adaptations).

You can improve your explosive power through either heavy resistance training or explosive-style training. The key mechanism for improvement is enhancing your nervous system's ability to activate muscles rapidly.

Physical exercise interventions significantly improve cognitive function in adults older than 50, regardless of baseline cognitive status.

If you are over 50, moving your body is one of the best things you can do for your brain. Aim for at least 45 minutes of moderate exercise most days of the week. This can include walking, swimming, lifting weights, or Tai Chi. You don't need to be an athlete; just keep moving. This applies whether you are healthy or have mild memory issues.

Moderate exercise training (≥5 days/week, 20+ min bouts) significantly reduces the incidence and duration of upper respiratory tract infections (URTI) compared to sedentary behavior.

Aim for at least 20 minutes of moderate aerobic activity, five days a week. This level of activity is proven to cut your risk of getting sick by nearly half compared to being sedentary, and it does so without the immune suppression risks associated with extreme endurance training.

Suboptimal intake of specific dietary factors (high sodium, low nuts/seeds, high processed meats, low seafood omega-3 fats, low vegetables, low fruits, high sugar-sweetened beverages) is associated with approximately 45.4% of cardiometabolic deaths in the US.

To significantly reduce your risk of heart disease, stroke, or type 2 diabetes, prioritize reducing sodium and processed meat intake while increasing consumption of nuts, seeds, seafood omega-3s, vegetables, and fruits. Limiting sugar-sweetened beverages is also critical. These changes collectively address the dietary factors responsible for nearly half of cardiometabolic deaths in the US.

Resistance training protocols utilizing moderate repetition ranges (approximately 6-12 reps) optimize muscle hypertrophy by maximizing metabolic stress, whereas high-repetition training is inferior unless artificial ischemia is applied.

To maximize muscle growth, aim for sets of 6-12 repetitions. This range balances mechanical tension with metabolic stress, which is crucial for hypertrophy. Avoid very high repetitions (15+) unless you are using special techniques like blood flow restriction, as they are generally less effective for building mass.

Low-intensity resistance training combined with vascular occlusion (blood flow restriction) produces hypertrophic gains similar to high-intensity training without occlusion.

If you cannot lift heavy weights due to injury or limitation, consider using blood flow restriction (BFR) with light weights (around 50% of your max). This method can build muscle size comparable to heavy lifting by creating metabolic stress.

High-intensity progressive resistance training is the optimal prescription for treating sarcopenia and improving aerobic capacity in older adults, often outperforming moderate-intensity aerobic training in specific metrics.

If you have muscle loss (sarcopenia), you need to lift heavy weights progressively to rebuild strength and even improve your heart health as much as moderate cardio does. Don't be afraid of resistance training; it is essential for fighting muscle loss and can be just as good for your cardiovascular system as moderate walking if done with high intensity.