Browse the evidence

High-intensity strength training (82% 1RM) produces significantly greater gains in muscular strength, anaerobic power, and mobility in inactive older men compared to low-intensity training (55% 1RM).

If you are an older adult looking to maintain independence and mobility, high-intensity strength training (lifting weights that feel very heavy, around 80-85% of your max) is more effective than light weights. You should train three times a week for 24 weeks, focusing on major muscle groups. This approach not only builds more strength but also helps you maintain those gains for longer periods, even if you take breaks from training.

High-intensity strength training preserves functional gains (strength and mobility) for a longer duration during detraining compared to low-intensity training.

If you are an older adult who might have periods of inactivity due to illness or travel, prioritize high-intensity strength training. The strength and mobility gains you build are more likely to be preserved for over a year, whereas lighter training benefits may disappear within months of stopping.

A structured 3-month aerobic exercise training program significantly improves cardiopulmonary functional capacity (VO2max), insulin sensitivity, and reduces inflammatory markers (CRP) in young overweight women with Polycystic Ovary Syndrome (PCOS).

If you have PCOS and are overweight, a structured 3-month aerobic exercise program (like cycling) at 60-70% of your max effort, 3 times a week, can significantly improve your heart and lung capacity, insulin sensitivity, and reduce inflammation. You do not need a strict diet, just general healthy eating habits.

Curcumin supplementation significantly reduces fasting blood glucose, glycated hemoglobin (HbA1c), and body mass index in patients with Type 2 Diabetes Mellitus.

If you have Type 2 Diabetes, adding curcumin to your routine may help lower your blood sugar and HbA1c. Look for high-bioavailability forms like nano-curcumin or curcumin paired with piperine, taken daily for at least 8 weeks, while continuing your standard diabetes medications.

Curcumin supplementation improves lipid profiles in Type 2 Diabetes patients by significantly reducing triglycerides, total cholesterol, LDL cholesterol, and VLDL cholesterol, while increasing HDL cholesterol.

For better heart health with diabetes, consider adding curcumin to your regimen. It helps lower bad fats (LDL, Triglycerides) and raise good fats (HDL). Use a bioavailable form for best results.

Higher free-living physical activity energy expenditure (PAEE) is independently associated with a lower prevalence of metabolic syndrome in adults, with a dose-response relationship where increased activity reduces risk.

To lower your risk of metabolic syndrome, focus on increasing your daily movement. You don't need intense gym sessions; adding about 30 minutes of brisk walking to your day can significantly reduce your risk. This is particularly relevant if you live in an urban environment where activity levels tend to be lower.

Supplementing with 40g/day of Resistant Starch (Type 2) for 8 weeks facilitates significant weight loss and improves insulin sensitivity in individuals with overweight or obesity by reshaping gut microbiota to increase Bifidobacterium adolescentis and alter bile acid profiles.

To lose weight using resistant starch, take 40 grams daily (split into two 20g doses) mixed with water, drinking it 10-15 minutes before your main meals. This must replace other calories in your diet to maintain energy balance, not be added on top. Stick to this for at least 8 weeks to see significant results, as the mechanism relies on gut bacteria adaptation.

Nutrition interventions significantly reduce weight, BMI, and waist circumference in people with severe mental illness (SMI), with larger effect sizes when delivered by dietitians or initiated at antipsychotic therapy start.

For individuals with severe mental illness, structured nutrition interventions are effective for weight management. The most effective approach involves dietitian-led individualized counseling, ideally starting when antipsychotic therapy begins. These interventions should focus on behavior change strategies like goal-setting and food literacy rather than just providing information.

Replacing sedentary time with vigorous physical activity (VPA) reduces the risk of more types of non-communicable diseases (NCDs) than replacing it with light (LPA) or moderate (MPA) physical activity.

If you sit for more than 6 hours a day, try to replace that time with vigorous activity rather than just light movement. Swapping 1 hour of sitting for 1 hour of vigorous activity (like running or fast cycling) is associated with a significantly lower risk of multiple chronic diseases compared to swapping it for light or moderate activity. While achieving 1 hour of VPA daily is challenging, even partial substitutions offer substantial health protection.

Physical activity interventions probably prevent frailty in adults aged 65 years and older, based on moderate certainty evidence from randomized controlled trials.

Engage in regular physical activity, including resistance, balance, and functional exercises, to help prevent frailty. While the specific dose varies, consistent movement is key for maintaining physiological reserves in older adults.

Long-term consumption of a diet rich in plant-based foods (high fiber, low meat) increases gut microbiota diversity and shifts the dominant bacterial genera from Bacteroides to Prevotella, which is associated with higher levels of short-chain fatty acid (SCFA) production and improved metabolic health.

To improve your gut health and metabolic function, prioritize a long-term diet rich in diverse plant-based foods (fruits, vegetables, resistant starches) and reduce meat consumption. This shifts your gut bacteria to produce more beneficial short-chain fatty acids, which support colon health, reduce inflammation, and improve insulin sensitivity. You do not need to eliminate all animal products, but increasing plant diversity is the most effective lever for microbiota health.

A Low FODMAP diet effectively alleviates symptoms of Irritable Bowel Syndrome (IBS) in approximately 85% of cases by reducing the fermentation of rapidly absorbable carbohydrates in the small intestine, thereby reducing gas production and visceral hypersensitivity.

If you suffer from IBS, try a Low FODMAP diet to reduce symptoms. This involves temporarily avoiding foods high in fermentable carbohydrates (like certain fruits, wheat, onions, and dairy). This diet alleviates symptoms in about 85% of users by reducing gut fermentation. Consult a healthcare provider to ensure you reintroduce foods correctly to maintain microbiota diversity.

Medical nutrition therapy involving moderate caloric restriction (1600-1800 kcal/day) and physical activity is the primary management strategy for gestational diabetes, aiming to maintain normoglycemia and appropriate fetal growth without inducing ketosis.

Start with moderate caloric restriction (1600-1800 kcal/day) combined with physical activity. This is the first-line treatment for GDM. Avoid severe restriction to prevent ketosis, which can be harmful. Monitor glucose levels closely.

Very low energy diets (VLED) and formula meal replacements produce significantly greater weight loss in adults with type 2 diabetes compared to standard low-energy or low-fat diets.

If you have type 2 diabetes and want maximum weight loss, using a structured Very Low Energy Diet (400-500 kcal/day) or formula meal replacements for 8-12 weeks is more effective than standard low-fat or low-carb diets. This approach creates a larger caloric deficit than self-selected food diets, leading to roughly 6.6 kg more weight loss.

Interventions using a hypocaloric formula 'total diet replacement' induction phase are the most effective approach for achieving type 2 diabetes remission.

To maximize your chances of reversing type 2 diabetes, use a program that starts with a formula-based total diet replacement phase. This approach yields a 54% remission rate at one year, significantly higher than Mediterranean (15%) or ketogenic (20%) diets.

GLP-1 receptor agonists (specifically high-dose liraglutide 3.0 mg) produce clinically significant weight loss (5.9 kg/year) by enhancing satiety via hypothalamic stimulation and delaying gastric emptying.

If you have obesity (BMI ≥ 30, or ≥ 27 with health issues), a daily 3.0 mg injection of liraglutide can help you lose 5-6 kg per year by making you feel full faster and keeping you full longer. You must manage potential nausea, which is common, and this is prescribed for long-term use, not just a quick fix.

Weight loss of 3-9% body weight significantly reduces systolic and diastolic blood pressure in overweight individuals, with mechanisms involving reduced blood volume, cardiac output, and plasma renin activity.

If you are overweight, losing just 3-9% of your body weight can lower your blood pressure by about 3 mm Hg. This is achieved through a monitored program involving energy restriction and increased physical activity. You do not need to lose a massive amount of weight to see benefits, and this approach may also reduce the need for medication.

Potassium supplementation lowers blood pressure, with greater effects in hypertensive individuals and those with high sodium intake.

Increase potassium intake, either through supplements (60 mmol/day) or dietary sources (fruits, vegetables, low-fat dairy). This is particularly effective if you are hypertensive or consume high amounts of sodium.

Lifestyle interventions including healthy diet, physical activity, and behavioral strategies are the first-line treatment for PCOS, improving metabolic, reproductive, and psychosocial outcomes.

For women with PCOS, lifestyle changes are the most important first step. Focus on incorporating a healthy diet and aiming for at least 150 minutes of moderate exercise per week (or 75 minutes of vigorous exercise). For better weight loss, aim for 250 minutes of moderate activity. Use behavioral strategies like setting goals, tracking progress, and problem-solving to stick with these changes long-term.

Combined oral contraceptive pills (COCPs) are recommended as first-line medical treatment for managing hyperandrogenism and regulating menstrual cycles in PCOS.

If lifestyle changes aren't enough to regulate your cycle or manage symptoms like excess hair growth, COCPs are the standard first medical treatment. They help by balancing hormones. Talk to your doctor about using the lowest effective dose to minimize side effects.

Ingestion of 6 mg/kg body mass of caffeine 60 minutes before simulated soccer activity significantly improves passing accuracy and functional leg power (jump height) without negatively affecting sprint performance or causing detrimental physiological effects.

If you are a soccer player, taking 6 mg of caffeine per kg of body weight about an hour before a match or training session can improve your passing accuracy and jumping ability. For example, a 70 kg player would take 420 mg of caffeine. This dose does not appear to cause dehydration or negatively impact sprint speed, and it helps maintain skill performance under fatigue. Ensure you tolerate caffeine well beforehand, as individual responses vary.

Consuming energy drinks containing approximately 2 mg/kg body mass of caffeine 10-60 minutes before exercise improves mental focus, alertness, anaerobic resistance exercise volume, and endurance performance.

If you are a healthy adult looking to boost performance, consume an energy drink 10-60 minutes before your workout. Aim for a dose providing roughly 2mg of caffeine per kg of body weight. This will likely improve your focus, alertness, and lifting volume or endurance time. Be aware that high-calorie versions can lead to weight gain if not managed within your daily calorie budget, and those with heart or metabolic conditions should consult a doctor first.

Intermittent very-low-calorie diet (VLCD) therapy (400-600 kcal/day for 1-5 days per week) combined with moderate caloric restriction produces significantly greater weight loss and improves glycemic control (specifically HbA1c normalization) in type 2 diabetes compared to moderate caloric restriction alone.

For individuals with Type 2 Diabetes who are overweight, incorporating short periods of very low-calorie intake (400-600 calories) into a weekly routine, alongside moderate calorie intake on other days, can lead to significantly greater weight loss and better blood sugar control than maintaining a moderate calorie diet alone. This approach requires strict adherence to the VLCD days, potentially supported by provided meals, and should be done under medical supervision.

A low-carbohydrate diet (20% energy from carbs) transiently improves glycaemic control (HbA1c reduction) and reduces insulin requirements in type 2 diabetes patients compared to a low-fat diet, despite producing similar weight loss.

If you have Type 2 Diabetes, switching to a low-carbohydrate diet (targeting 20% of calories from carbs) can significantly lower your blood sugar (HbA1c) and reduce your need for insulin within 6 months, even if you lose the same amount of weight as you would on a standard low-fat diet. This approach is safe for your cholesterol profile and can be managed with minimal medical resources (e.g., group education).