Browse the evidence

A 6-month lifestyle intervention combining caloric restriction and moderate-intensity exercise significantly improves macrovascular endothelial function (flow-mediated dilation) and reduces markers of endothelial activation (sICAM, PAI-1) in obese subjects with insulin resistance syndrome, regardless of glucose tolerance status.

For obese individuals with insulin resistance, a 6-month program of moderate exercise (150 minutes/week) combined with a modest 500-calorie daily diet deficit significantly improves blood vessel health (endothelial function) and reduces inflammation markers. This benefit occurs regardless of whether you have normal blood sugar, pre-diabetes, or type 2 diabetes, and is strongly linked to the amount of weight you lose.

Interrupting prolonged sitting with physical activity breaks significantly reduces post-prandial blood glucose, insulin, and triacylglycerol levels compared to continuous sitting.

If you sit for long periods, don't just stand up. Get up and move with light physical activity (like walking or cycling) for short breaks throughout the day. This actively lowers your blood sugar and insulin levels after eating, which is better for metabolic health than just sitting or standing still.

GLP-1 receptor agonists (specifically liraglutide) induce significant weight loss and improve metabolic parameters (insulin sensitivity, testosterone) in obese women with PCOS, offering a therapeutic avenue for infertility associated with this condition.

For women with PCOS and obesity, GLP-1 receptor agonists like liraglutide (1.2-3.0 mg daily) are a clinically supported pharmacological option to induce weight loss and reduce testosterone levels when lifestyle changes alone have failed or are difficult to maintain. This intervention targets the underlying hormonal and metabolic drivers of infertility.

Weight loss of 10% or more through lifestyle interventions (hypocaloric diet and exercise) is necessary to achieve regression of liver fibrosis in patients with NAFL/NASH.

To reverse liver scarring (fibrosis), you need to lose at least 10% of your body weight. This requires a daily calorie deficit of about 750 calories combined with 200 minutes of walking per week. While losing 3-5% helps fat and 5-7% helps inflammation, hitting that 10% mark is what actually reverses fibrosis. This is the most effective treatment available, but it is hard to maintain.

Substituting sedentary time with low-intensity physical activity (standing and walking) improves insulin sensitivity and plasma lipid profiles more effectively than substituting the same time with moderate-to-vigorous exercise (cycling), provided total daily energy expenditure is held constant.

If you have a sedentary job, doing one hour of intense gym work is not enough to protect your metabolic health. You must break up your sitting time throughout the day. Standing and walking for several hours (e.g., 6 hours total) provides better insulin and lipid benefits than one hour of cycling, even if both burn the same amount of energy. Prioritize non-sitting time over exercise intensity.

Oral creatine supplementation (5g daily) accelerates the recovery of muscle cross-sectional area and maximal power output during rehabilitation from disuse atrophy compared to placebo.

If you are recovering from an injury that requires immobilization or reduced activity, taking 5g of creatine monohydrate daily during your rehabilitation training can help you regain muscle mass and strength faster than training alone. Start with a higher dose (20g/day) if you are currently immobilized, then drop to 5g/day once you resume active training.

Dehydration exceeding 2% of body mass impairs aerobic performance in warm-hot environments, contradicting the 'drink to thirst' approach for severe events.

Start your event well-hydrated (drink 6ml/kg every 2-3 hours before). During the event, try to replace sweat losses. After the event, drink fluids with meals and electrolytes to recover fully. Don't rely solely on thirst if you are sweating heavily.

Pre-cooling and intra-exercise cooling strategies (ice slurry, cooling vests, cold water immersion) improve endurance and intermittent-sprint performance in hot conditions.

Use cooling strategies like ice slurry or cooling vests before or during breaks in hot events. This helps you perform better. Avoid cooling your muscles directly right before a single explosive sprint.

Combining SGLT-2 inhibitors with appetite-suppressing agents (like GLP-1 receptor agonists or phentermine) overcomes the counter-regulatory increase in food intake, resulting in significantly greater weight loss (3–7.3 kg) than either drug alone.

If SGLT-2 inhibitors alone aren't moving the needle enough, combining them with an appetite suppressant (like a GLP-1 agonist or phentermine) is a proven strategy. This combo tackles weight loss from two angles: peeing out calories and feeling less hungry. Clinical trials show this can lead to 3–7 kg of weight loss, significantly more than either drug used by itself.

Modest intentional weight loss (5–10 kg) combined with exercise and calorie restriction is the optimal intervention for reducing fat mass and preserving muscle mass in elderly individuals with sarcopenic obesity.

For older adults, do not aim for drastic weight loss. Instead, focus on losing 5-10 kg through a combination of moderate calorie reduction and regular exercise. This specific approach is critical to ensure you lose fat without losing the muscle strength you need for daily life.

Exercise-based cardiac rehabilitation significantly reduces all-cause hospital admissions in patients with coronary heart disease.

Participating in supervised exercise programs after a heart event can significantly reduce the number of times you need to be hospitalized. This is a key benefit of cardiac rehabilitation.

Administration of specific probiotic strains (e.g., Lactobacillus gasseri BNR17, L. acidophilus La5, Bifidobacterium lactis Bb12) and prebiotics (e.g., inulin-type fructans) reduces abdominal visceral fat, body weight, and fasting plasma glucose in overweight or obese individuals.

If you are overweight with visceral fat, adding specific probiotic strains (like L. gasseri or B. lactis) or prebiotics (like inulin) to your daily diet for at least 12 weeks can help reduce belly fat and improve blood sugar control. This works best when combined with a healthy diet, as the bacteria help regulate satiety hormones.

Intensive nutritional supplementation improves motor function and rehabilitation outcomes in undernourished stroke patients compared to routine supplementation.

For stroke patients who are undernourished, standard food care may not be enough. Intensive nutritional support (likely supplements or fortified diets) helps them recover motor function faster.

Vitamin D supplementation of 800-1000 IU/day is recommended for elderly and postmenopausal women with serum 25-(OH)D levels below 50 nmol/L to normalize bone turnover and prevent osteoporosis-related outcomes.

If you are an older woman or postmenopausal and your Vitamin D levels are low (below 50 nmol/L), take 800-1000 IU of Vitamin D3 daily along with 1000 mg of calcium. This helps protect your bones from breaking. You don't necessarily need more than this unless you are very frail and prone to falls, in which case your doctor might aim for a higher level.

For fragile elderly patients at high risk of falls and fractures, a target serum 25-(OH)D level of 75 nmol/L (30 ng/mL) is recommended, requiring higher supplementation (e.g., 1600 IU/day) than the general population threshold.

If you are very old and have fallen before or feel weak, ask your doctor about aiming for a higher Vitamin D level (75 nmol/L). You might need a higher dose (like 1600 IU/day) to get there, which may require a blood test to check. This extra step can help prevent falls.

Regular physical exercise (defined as exercising at least once per week) is associated with significantly lower all-cause mortality and improved health-related quality of life in maintenance hemodialysis patients.

For hemodialysis patients, aiming to exercise at least once a week is associated with a significantly lower risk of death and better quality of life. This does not require intense gym workouts; self-reported leisure-time physical activity counts. Patients should consult their care team to find safe, manageable forms of activity, as even modest exercise can yield substantial survival benefits.

Aerobic and strength training interventions significantly reduce pain, fatigue, and depression while improving physical function and quality of life in individuals with fibromyalgia.

Start with low-intensity aerobic or strength exercises 2-3 times a week. Focus on 'starting low and going slow' to avoid symptom flares. Gradually increase intensity by 10% every two weeks if no pain exacerbation occurs. Combine with education and stress management for best results.

Adherence to the Dutch Healthy Diet index 2015 (DHD15-index) is significantly associated with lower BMI, lower energy intake, and reduced consumption of total and saturated fats, while being positively associated with higher intake of fiber and micronutrients.

To improve your diet quality score, focus on eating at least 200g of vegetables and fruit daily, choosing wholegrain products, limiting red and processed meat, and reducing sweetened beverages. This pattern is associated with lower BMI and better nutrient intake.

Lifestyle interventions achieving greater initial weight loss (>10%) result in significantly greater net weight loss after one year of unsupervised follow-up compared to those achieving 5-10% loss, despite similar percentage maintenance rates.

Aim for a weight loss of 10% or more during your lifestyle intervention. Even if you regain some weight after the program ends, you will likely end up lighter after one year than if you had only aimed for a modest 5% loss. The 'buffer' created by larger initial loss protects your long-term results.

Higher adherence to the Mediterranean Dietary Pattern (MDP) is associated with a significantly lower prevalence of inadequate micronutrient intakes and a reduced risk of failing to meet nutritional recommendations compared to lower adherence or Western dietary patterns.

To improve your micronutrient status, adopt a Mediterranean-style eating pattern. This means prioritizing vegetables, fruits, whole grains, legumes, nuts, fish, and olive oil, while limiting red meat, processed foods, and sugars. Even moderate adherence to this pattern significantly reduces the risk of missing essential nutrients like iron, zinc, and vitamins compared to a standard Western diet.

Resistance training performed twice weekly for six months significantly increases maximal strength and explosive force in middle-aged and older adults, primarily through neural adaptations (increased agonist activation and reduced antagonist coactivation) rather than muscle hypertrophy.

For older adults, lifting weights twice a week is highly effective for building strength and power. You do not need to train every day. Focus on progressive overload, starting with lighter weights and higher reps, then moving to heavier weights with fewer reps. Expect your nervous system to adapt first, allowing you to lift heavier without necessarily looking significantly bigger, especially for men. Women may see some muscle growth, but the primary benefit is functional strength and power.

Engaging in brief, sporadic bouts of vigorous-intensity physical activity (VILPA) lasting 1-2 minutes during daily life significantly reduces all-cause, cardiovascular, and cancer mortality in non-exercisers, with effects comparable to structured vigorous exercise.

You do not need to join a gym or set aside large blocks of time for exercise to significantly lower your risk of death from heart disease or cancer. Look for opportunities in your daily routine to move vigorously for just 1-2 minutes at a time. Examples include climbing stairs quickly, walking very fast to catch a bus, or moving briskly between tasks. Doing this 3 times a day (totaling about 4-5 minutes) provides substantial health benefits comparable to structured exercise.

Higher intake of total fruit, specifically berries, green leafy vegetables, yellow vegetables, and cruciferous vegetables, is associated with a reduced risk of developing type 2 diabetes.

To lower your risk of type 2 diabetes, prioritize increasing your intake of specific fruits and vegetables. Focus on berries (especially blueberries), green leafy vegetables, yellow vegetables, and cruciferous vegetables. These specific types show the strongest protective effects. You do not need to avoid fruit; in fact, higher intake of these categories is linked to lower risk. Citrus and strawberries showed less significant or no significant association in this analysis, so prioritize the berries and greens.

The Remote Food Photography Method (RFPM) provides reliable and valid estimates of energy intake in free-living conditions, with significantly lower error rates (approx. 5%) compared to traditional self-report methods (37%+).

If you need to track food intake accurately without the guesswork of portion sizes, using a camera to photograph your meal and plate waste is a viable, objective method. It reduces the cognitive burden of estimation and provides data comparable to weighing food, with only a small, consistent underestimation bias.