Browse the evidence

High intake of milk and dairy products (200-300 ml/day) is associated with a reduced risk of stroke and does not increase the risk of cardiovascular disease, contrary to the belief that saturated fat in dairy increases CVD risk.

You can include 200-300 ml of milk or equivalent dairy (like cheese) in your daily diet without increasing your risk of heart disease. In fact, it may lower your risk of stroke. Focus on low-fat options if you are managing blood pressure, but do not avoid dairy due to fear of saturated fat causing heart attacks.

Dairy consumption is associated with a reduced risk of colorectal, bladder, gastric, and breast cancers, while showing no association with pancreatic, ovarian, or lung cancer, and inconsistent evidence for prostate cancer.

Including dairy in your diet may help protect against colorectal, bladder, gastric, and breast cancers. While the link to prostate cancer is unclear, the protective benefits for other common cancers suggest that dairy is a beneficial part of a healthy diet.

Dairy intake facilitates weight loss and improves body composition (reducing fat mass, preserving lean mass) during energy restriction in adults, and is associated with a reduced risk of childhood obesity.

If you are trying to lose weight, include dairy in your diet. It helps you feel full, preserves your muscle, and reduces body fat. One serving a day is associated with lower obesity risk in children.

Skeletal muscle AMPK activation during exercise is strictly dependent on exercise intensity and duration, with high-intensity/short-duration exercise activating alpha2beta2gamma3 complexes via LKB1, while low-intensity/long-duration exercise activates alpha2beta2gamma1 and alpha1beta2gamma1 complexes via CaMKKbeta.

To target specific metabolic adaptations, you must match your exercise intensity and duration to the desired AMPK complex. High-intensity, short-duration efforts primarily activate the alpha2beta2gamma3 complex via LKB1, while lower-intensity, longer-duration efforts engage alpha2beta2gamma1 and alpha1beta2gamma1 complexes via CaMKKbeta. Simply 'exercising' is not enough; the specific protocol dictates the molecular response.

Blending multiple plant protein sources or fortifying them with essential amino acids (specifically leucine) can improve their anabolic quality to match animal proteins.

To get the most out of plant protein, choose products that are either 'blended' (e.g., pea and rice protein mixed) or 'fortified' with leucine. This ensures you get all the essential amino acids needed for muscle building, making them just as effective as animal proteins without needing to eat huge amounts.

Soleus muscle is more susceptible to atrophy and fiber type shifting than the gastrocnemius during long-duration spaceflight, exhibiting a 15% volume loss and a 17% decrease in MHC I fibers.

Postural muscles like the soleus (calf) are highly sensitive to unloading. If you are immobilized or bedridden, expect significant loss of postural endurance and calf strength. Rehabilitation should prioritize specific loading of these slow-twitch dominant muscles.

Higher waist-hip ratio (WHR) is independently and more strongly predictive of coronary heart disease (CHD) risk than body mass index (BMI) or waist circumference alone, with risk increasing continuously across the range of WHR in both men and women.

Don't rely on BMI alone to assess your heart disease risk. Measure your waist and hip circumferences. A higher waist-hip ratio indicates a significantly higher risk of coronary heart disease, even if your BMI is normal. This is a simple, inexpensive way to assess risk that captures abdominal obesity better than weight alone.

Pycnogenol (100 mg/day) reduces blood glucose levels and improves endothelial function in Type 2 Diabetes patients when used as an adjunct to conventional oral antidiabetic drugs, without increasing insulin secretion.

If you have Type 2 Diabetes, adding 100 mg of Pycnogenol daily to your existing medication regimen may help lower blood sugar and improve blood vessel health over a 3-month period. It works by slowing sugar absorption rather than forcing your body to produce more insulin.

Phlorizin, derived from unripe apples, reduces postprandial glucose response approximately two-fold and increases urinary glucose excretion fivefold in healthy volunteers within 2-4 hours of ingestion.

Consuming phlorizin from unripe apples can significantly blunt blood sugar spikes after a meal and increase sugar excretion in urine. This effect happens quickly, within 15-30 minutes, and lasts for a few hours.

In healthy men, restricting dietary phosphorus to low-normal levels (625 mg/d) significantly decreases serum FGF-23 concentrations compared to control (1500 mg/d) or high-normal (2300 mg/d) intakes, while increasing 1,25(OH)2D levels.

For healthy men, maintaining a normal dietary phosphorus intake (around 1500 mg/day) is sufficient to regulate FGF-23 and vitamin D metabolism. Extreme restriction (625 mg/day) lowers FGF-23 and raises active Vitamin D, but this is a physiological response to restriction, not necessarily a health benefit. There is no need to restrict phosphorus in healthy individuals.

Improving diet quality over 12 years is associated with a reduced risk of cardiovascular disease mortality, but not necessarily cancer mortality, depending on the dietary index used.

Improving your diet quality can reduce your risk of dying from cardiovascular disease, especially if you follow patterns like the Alternate Healthy Eating Index or Mediterranean Diet. While the link to cancer mortality is less clear across all dietary patterns, focusing on overall diet quality is still beneficial.

Both short sleep (<7 hours) and long sleep (>8 hours) are associated with a significantly increased risk of all-cause mortality in a U-shaped pattern, with the strongest effects observed in young men.

Aim for 7-8 hours of sleep per night. Both sleeping less than 7 hours and more than 8 hours is linked to higher mortality risk, especially in younger men. While sleep quality itself may not be an independent risk factor after adjusting for lifestyle, maintaining a consistent and adequate sleep duration is a critical health lever.

Higher muscular strength is independently associated with reduced all-cause and cancer mortality in middle-aged men, and reduces all-cause mortality in men with hypertension and heart failure patients, even after adjusting for cardiorespiratory fitness.

Prioritize building muscular strength through resistance training. It is not just about looks; higher strength levels are strongly linked to living longer and reducing the risk of heart disease and cancer, independent of how much you exercise aerobically. Aim for progressive overload in major muscle groups.

In children and adolescents, higher muscular fitness is inversely associated with insulin resistance, clustered cardiometabolic risk, and inflammatory proteins, independent of cardiorespiratory fitness.

Ensure children and adolescents engage in muscle-strengthening activities. It helps regulate insulin, reduces metabolic risk, and lowers inflammation, providing benefits beyond just aerobic exercise. This is important for long-term health.

Repeated exercise training produces persistent improvements in skeletal muscle insulin sensitivity through up-regulation of GLUT4, AMPK, and lipid oxidation pathways, whereas a single bout of exercise only provides a transient (approx. 48h) insulin-sensitizing effect.

To fix insulin resistance, you need to train consistently, not just occasionally. While one workout helps for a day or two, only regular exercise builds the lasting muscle adaptations (like more GLUT4 and better fat burning) that keep your blood sugar stable long-term. Focus on building a routine rather than chasing a single 'perfect' session.

Exercise training restores impaired insulin-stimulated PI3-kinase (PI3K) activity in skeletal muscle, which is typically decreased in insulin-resistant subjects and type 2 diabetes patients.

Insulin resistance often involves a broken signal inside muscle cells that prevents glucose from entering. Exercise helps repair this specific signaling pathway (PI3K activity), allowing insulin to do its job of moving sugar out of the blood and into the muscle.

Chronic supplementation with green tea extracts rich in catechins (specifically EGCG) significantly reduces body mass index and waist circumference in individuals with metabolic syndrome, likely through thermogenesis and fat oxidation mechanisms.

If you have metabolic syndrome or are overweight, drinking green tea or taking a green tea extract supplement daily for at least 8 weeks can help reduce your waist size and BMI. Focus on products containing a mix of catechins rather than just massive doses of isolated EGCG, as the combination appears more effective. Combining this with moderate exercise may further enhance abdominal fat loss.

Cocoa supplementation with high flavanol content significantly reduces systolic and diastolic blood pressure in individuals with metabolic syndrome or borderline hypertension.

To lower blood pressure, consume cocoa products that are specifically high in flavanols. Standard chocolate often lacks sufficient flavanols or contains too much sugar. Look for high-flavanol cocoa powders or dark chocolate with high cocoa content. This intervention works by improving blood vessel function via nitric oxide.

In female athletes engaged in sports emphasizing leanness, energy drain (energy expenditure exceeding dietary intake) is the primary causal factor for hypothalamic suppression of GnRH, leading to hypoestrogenism, menstrual dysfunction, and compromised bone density.

If you are a female athlete in a leanness-focused sport (like running or dance) and you have missed periods or lost bone density, the root cause is likely not just 'being thin' or 'training hard,' but a mismatch between how much energy you burn and how much you eat. Simply taking estrogen or birth control may not fix the underlying issue or restore bone growth. The most effective intervention is to increase caloric intake to match your energy expenditure, which may reverse menstrual dysfunction and stimulate bone accretion. Consult a specialist to screen for nutritional issues.

Hormone Replacement Therapy (HRT) or oral contraceptives in hypoestrogenic amenorrheic athletes may prevent further bone loss but are often insufficient to stimulate bone growth or replace bone lost prior to intervention; correcting metabolic abnormalities is more effective for bone health.

If you are an amenorrheic athlete with low bone density, taking estrogen or birth control might stop your bones from getting worse, but it likely won't rebuild the bone you've already lost. The most effective way to improve bone health is to fix the underlying energy deficit and metabolic issues (eating more, training less intensely). HRT should be used cautiously and likely only after bone growth is complete in younger athletes.

Obesity and high insulin levels are inversely correlated with Total Testosterone and SHBG levels, but weight loss increases SHBG even if insulin remains elevated.

Losing weight helps increase SHBG and Free Testosterone in obese men. However, even if insulin remains high after weight loss, SHBG can still improve, likely due to other hormonal changes.

Moderate physical exercise improves endothelial function and reduces cardiovascular risk, whereas prolonged strenuous exercise may limit nitric oxide production.

Engage in moderate intensity aerobic exercise regularly to improve your heart health. This type of exercise improves endothelial function and reduces cardiovascular risk. Avoid prolonged strenuous exercise, as it may generate excessive free radicals and limit nitric oxide production, potentially negating some benefits.

Lower visceral adipose tissue (VAT) accumulation, rather than total body fatness, is the primary physiological characteristic associated with a normal metabolic profile (high insulin sensitivity, favorable lipid profile) in obese postmenopausal women.

For obese postmenopausal women, achieving a 'normal' metabolic profile is possible even with high total body fat, provided visceral fat accumulation is kept low. This suggests that interventions targeting visceral fat reduction (via diet or exercise) may yield better metabolic outcomes than those focusing solely on total weight loss or BMI reduction.

Weight loss in obese, hyperandrogenic, amenorrheic women significantly reduces plasma testosterone and LH levels, leading to improved menstrual cyclicity and hirsutism.

For obese women with irregular periods and high male hormones, losing weight through a standard calorie-restricted diet (1000-1500 calories daily) for 6-12 months is a highly effective medical intervention. It lowers testosterone and LH, which often restores ovulation and reduces excess hair growth, regardless of whether they have polycystic ovaries or not.