Browse the evidence

GLP-1 receptor agonists (GLP-1RAs) provide high glycemic efficacy and facilitate weight loss in type 2 diabetes without conferring a risk of hypoglycemia.

GLP-1 receptor agonists are injectable medications that effectively lower blood sugar and help with weight loss in type 2 diabetes without causing low blood sugar. They come in daily or weekly formulations. Side effects like nausea are common initially but often improve over time. They are particularly useful for patients who need to avoid weight gain or hypoglycemia associated with other diabetes medications like insulin or sulfonylureas.

Tirzepatide (5, 10, and 15 mg once-weekly) provides superior glycemic control (HbA1c reduction) and greater body weight loss compared to placebo, GLP-1 receptor agonists, and basal insulin in adults with type 2 diabetes.

Tirzepatide is a once-weekly injection that lowers blood sugar and helps with weight loss more effectively than existing GLP-1 drugs (like semaglutide) and basal insulin. It works by mimicking two gut hormones (GIP and GLP-1). While it is very effective, it can cause stomach issues like nausea and diarrhea, which might lead some people to stop taking it, especially at higher doses. It does not increase the risk of low blood sugar (hypoglycemia) on its own.

Consumption of olive oil containing at least 5 mg of hydroxytyrosol and its derivatives per 20g provides a cause-and-effect protection of blood lipids from oxidative stress, specifically by decreasing circulating oxidized LDL particles.

To get the heart-protective benefit of olive oil polyphenols, you need to eat about 1.5 tablespoons (20g) of high-quality extra virgin olive oil daily. Crucially, the oil must contain at least 5mg of hydroxytyrosol and its derivatives. This isn't just any olive oil; look for high-polyphenol varieties. Use it to replace less healthy fats in your diet rather than adding it on top of your current calories.

Vegetarians are at a significantly higher risk of Vitamin B12 deficiency compared to non-vegetarians, with deficiency rates ranging from 11% to 90% depending on the demographic subgroup.

If you are vegetarian, especially if you are pregnant, elderly, or raising children, you should monitor your Vitamin B12 levels. Deficiency is common and can be masked by high folate intake. Do not assume your diet provides enough B12; consider using nori or supplements to prevent long-term health risks like neuropathy and anemia.

High-intensity progressive resistance training (PRT) safely restores lean body mass and physical function in patients with established, stable rheumatoid arthritis (RA) without exacerbating disease activity.

If you have stable rheumatoid arthritis, high-intensity resistance training (lifting weights at about 80% of your max capacity) twice a week for 24 weeks is a safe and effective way to rebuild muscle and improve physical function. This approach does not worsen your disease activity or inflammation, contrary to older beliefs that RA patients are resistant to muscle building. You should consult your rheumatologist to ensure your disease is stable before starting.

Strength training significantly reduces the risk of both acute and overuse sports injuries in athletes, with injury risk reduction being dose-dependent on volume and intensity.

Incorporate strength training into your routine to prevent injuries. It doesn't need to be extreme; focus on gradual increases in volume (repetitions) and intensity (weight). Start with a technique phase, then progress. It is safe for adolescents and adults, and studies show it reduces injury risk by more than half. Ensure you have qualified supervision and allow for adequate rest (approx. 72 hours for beginners).

Achieving 8.75 marginal MET-hours per week of non-occupational physical activity (equivalent to 150 minutes/week of moderate-to-vigorous aerobic activity) significantly reduces the risk of all-cause mortality, cardiovascular disease, and total cancer incidence compared to inactivity.

To significantly lower your risk of early death and heart disease, aim for 150 minutes per week of moderate-to-vigorous activity (like brisk walking) outside of work. This is the most impactful change you can make if you are currently inactive. Benefits are largest when moving from zero activity to this level.

The health benefits of non-occupational physical activity follow a non-linear dose-response curve, where the greatest risk reduction occurs between 0 and 8.75 mMET-hours/week, with diminishing returns above 17.5 mMET-hours/week.

You get the most 'bang for your buck' by moving from a sedentary lifestyle to a moderately active one (150 mins/week). Doing more than double that amount (300 mins/week) offers smaller additional health benefits, so prioritize consistency over intensity if you are busy.

Heat acclimatization via repeated exercise-heat exposures over 1-2 weeks is the most effective intervention to reduce physiological strain and optimize aerobic performance in hot environments.

If you are competing in the heat, you must spend 1-2 weeks training in the heat before the event. Train daily for at least 60 minutes, aiming to raise your core temperature and sweat. If you can't travel to a hot location, train in a hot room or outdoors in the heat. This is the single most important thing you can do to perform well.

Consuming 2 grams per day of phytosterols (PS) lowers LDL-C by 6-12% through the inhibition of intestinal cholesterol absorption.

To lower LDL cholesterol, consume 2 grams of phytosterols daily, split into two doses with meals. This can be achieved through fortified foods like margarine, yogurt drinks, or supplements. This intervention lowers LDL-C by 6-12% without affecting HDL-C.

Sustained weight loss of 15-20% prevents type 2 diabetes in obese individuals, reducing the 2-year incidence from 6.3% to 0.2%.

Losing 15-20% of your body weight and keeping it off is the single most effective way to prevent type 2 diabetes, reducing your risk by over 95% in the short term and 80% in the long term. Focus on sustainable lifestyle changes rather than quick fixes.

An adjunctive dietary improvement program using the 'ModiMedDiet' significantly improves symptoms in patients with major depressive episodes compared to social support.

If you are struggling with depression, consider adding a dietary improvement program alongside your current treatment. The 'ModiMedDiet' focuses on whole foods, fish, and olive oil, and has shown large benefits in treating depression. It is feasible even when you feel fatigued.

Doubling the proportion of vegetarian meal options available in a cafeteria from 25% to 50% significantly increases the selection and sales of vegetarian meals while decreasing meat meal sales, with the largest effect observed among diners with the lowest prior levels of vegetarian consumption.

To encourage more plant-based eating in a cafeteria, simply double the number of vegetarian dishes offered relative to meat dishes (e.g., from 1 out of 4 options to 2 out of 4). This simple change in availability significantly increases vegetarian sales, especially among those who rarely eat vegetarian meals, without negatively impacting total sales or causing rebound meat consumption at other meals.

Recurrent sleep restriction and deprivation significantly impair vigilance and neurocognitive function, leading to negative impacts on performance and increased risk of medical errors.

Prioritize sleep duration and quality as a non-negotiable component of performance and safety. Sleep restriction is not a badge of honor; it is a performance-limiting factor that impairs vigilance and increases error risk, comparable to impairment in other domains.

Sleep restriction (4-5 hours per night) impairs glucose tolerance and insulin sensitivity, increasing the risk of type 2 diabetes and metabolic disorders.

Chronic sleep restriction impairs your body's ability to process glucose, increasing diabetes risk. Prioritize 7-8 hours of sleep to maintain healthy insulin sensitivity and glucose metabolism.

Lifestyle interventions combining weight reduction, increased physical activity, and dietary modification (increased fiber, reduced fat) can prevent or delay the onset of type 2 diabetes in high-risk individuals by over 50%.

To prevent diabetes, focus on losing 5% of your body weight if you are overweight, eating more fiber (like whole grains and vegetables) and less saturated fat, and walking for at least 30 minutes most days of the week. You do not need to be perfect; small, consistent changes in these areas significantly lower your risk.

Semaglutide 2.4 mg administered subcutaneously once weekly reduces major adverse cardiovascular events (MACE) in patients with established cardiovascular disease and overweight or obesity, independent of diabetes status.

If you have established heart disease and are overweight or obese, but do not have diabetes, semaglutide 2.4 mg once weekly is a treatment option being tested to reduce your risk of heart attack, stroke, or cardiovascular death. It is taken as a weekly injection, started at a low dose to minimize stomach side effects, and used alongside standard heart health care. This approach targets obesity as a direct cause of cardiovascular risk, independent of blood sugar levels.

Obesity is a major independent risk factor for hypertension, with approximately one-third of hypertension prevalence in prevalent populations potentially attributable to obesity.

Obesity is a primary driver of high blood pressure in the general population. Addressing excess body weight is not just about aesthetics but is a critical medical intervention for preventing or managing hypertension, potentially eliminating the condition in up to one-third of cases.

Reducing total dietary carbohydrate content lowers triglycerides regardless of whether the carbohydrates are high or low glycemic index.

If you have high triglycerides, reducing your total carbohydrate intake (e.g., from 58% of calories to 40%) is an effective strategy, regardless of whether you choose high or low glycemic index carbs. This reduction lowers triglycerides significantly without needing to focus on glycemic index alone.

Low Energy Availability (LEA) causes Relative Energy Deficiency in Sport (RED-S), leading to impaired performance, poor bone health, and increased injury risk in both male and female athletes.

Ensure your daily food intake covers both your training energy expenditure and your body's basic health needs. If you are losing weight unintentionally, feeling fatigued, or getting injured often, you may have Low Energy Availability. Consult a sports dietitian to increase energy availability.

Lifestyle interventions maintaining a carbohydrate-rich diet are safe and effective for preventing type 2 diabetes in high-risk individuals.

To prevent diabetes, focus on eating more fruits, vegetables, and whole grains, and stay active. You do not need to eliminate carbohydrates; in fact, a balanced diet with moderate carbs is safer and just as effective for long-term health.

While genetic risk for type 2 diabetes exerts a stronger relative effect on leaner and younger individuals, obesity creates such a high absolute risk that universal lifestyle interventions targeting weight management are more effective for prevention than targeted genetic screening.

Don't wait for a genetic test to decide if you should manage your weight. The study proves that carrying 'high-risk' genes matters less for your actual chance of getting diabetes than being obese. If you are lean, your genetic risk is relatively higher, but your absolute risk is still very low (less than 1% over 10 years). If you are obese, your risk is high (up to 8%) regardless of your genes. Therefore, focus on maintaining a healthy weight through diet and activity; it is the most powerful lever you have, regardless of your DNA.

Postexercise carbohydrate ingestion at 1.2 g · kg–1 · hr–1 maximizes muscle glycogen synthesis rates, and adding protein does not further increase synthesis rates at this dosage.

To maximize glycogen recovery after intense exercise, consume 1.2 grams of carbohydrate per kilogram of body weight per hour, split into doses every 15-30 minutes. You do not need to add protein to speed this up if you are hitting this carbohydrate target. However, if you cannot eat that much carbohydrate, adding 0.2-0.4 g/kg/hr of protein will help you achieve the same glycogen replenishment rate with less total carbohydrate.

Yoga interventions significantly improve physical function (balance, lower body flexibility, lower limb strength) and health-related quality of life (depression, mental/physical health, sleep quality, vitality) in older adults (mean age 60+) compared to both inactive and active controls.

If you are over 60, incorporating yoga into your routine can significantly boost your balance, flexibility, and strength, while also improving your mood, sleep, and overall quality of life. You don't need to be flexible to start; various types of yoga, including chair-based options, are available and effective. Aim for regular sessions to see these benefits, and consider it a valuable part of your physical activity guidelines alongside other exercises.