Browse the evidence

Management of insulin resistance through lifestyle interventions (diet and exercise) and pharmacological agents is effective, although no medication is currently specifically approved solely for treating insulin resistance.

Focus on sustainable lifestyle changes: eat a balanced diet and exercise regularly. These are the proven ways to manage insulin resistance. Do not wait for a specific 'IR medication' as none exists; use existing tools like Metformin only if prescribed for diabetes or other conditions.

Resistance exercise training increases the proportion of endothelial cells and pericytes in human skeletal muscle, while acute resistance exercise increases the proportion of neutrophils.

To improve muscle vascularization and immune readiness, engage in consistent resistance training (3x/week). Expect an immediate, short-term spike in neutrophils after each session, but focus on the long-term benefit of increased endothelial and pericyte presence which supports muscle health and recovery.

Higher dietary intake of fruit, whole grains, and coffee is associated with increased circulating levels of hippurate, a metabolite produced by gut microbiota that serves as a marker for higher gut microbiome diversity.

To potentially support gut microbiome diversity and metabolic health markers, increase your intake of fruit, whole grains, and coffee. These foods are associated with higher levels of hippurate, a metabolite linked to a lower risk of metabolic syndrome.

Higher circulating levels of hippurate and greater gut microbiome diversity (Shannon index) are associated with a reduced risk of developing Metabolic Syndrome (MetS).

Maintaining a diverse gut microbiome, indicated by higher hippurate levels, is associated with a lower risk of metabolic syndrome. This can be supported by a diet rich in fruit, whole grains, and coffee.

Moderate alcohol consumption is associated with a lower risk of initial presentation for several cardiovascular diseases (myocardial infarction, heart failure, ischaemic stroke, peripheral arterial disease, abdominal aortic aneurysm) compared to abstinence, but heavy drinking increases the risk for most of these same conditions.

Moderate alcohol consumption is linked to a lower risk of some heart conditions compared to not drinking at all, but this benefit disappears and becomes harmful at heavy levels. Heavy drinking increases the risk of heart failure, stroke, and early death. The apparent benefit of moderate drinking is often overstated because studies that lump 'former drinkers' (who quit due to illness) with 'lifelong abstainers' make non-drinking look riskier than it is. For health, abstinence is a safe and valid choice; moderate drinking is not a prescribed treatment.

The glucose-lowering benefits of physical activity breaks are greater in individuals with higher body mass index (BMI).

If you have a higher BMI, making small physical activity breaks during your workday might be especially effective at keeping your blood sugar levels stable after meals compared to those with a lower BMI.

Mediterranean Diet (MD) is the recommended first-choice diet for NAFL/NASH patients, improving hepatic steatosis and visceral fat, though its efficacy in advanced NASH requires further investigation.

Adopt a Mediterranean Diet rich in whole grains and healthy fats (MUFAs). This is the recommended first-line dietary approach to reduce liver fat and visceral fat. While it helps with insulin resistance and may reduce cardiovascular risk, its ability to reverse advanced NASH is not yet fully proven.

Sharper change of direction angles (≥60°) and higher approach velocities significantly increase knee joint loading and injury risk due to greater braking forces and lateral ground reaction forces, creating a performance-injury conflict.

When coaching change of direction, recognize that sharper cuts (60 degrees or more) and faster approaches place significantly higher loads on the knees. To reduce injury risk, focus on strengthening the athlete's ability to produce force rapidly and improving their neuromuscular control, which helps them tolerate these higher loads safely.

An 'angle-velocity trade-off' exists where faster approach velocities compromise the execution of the intended change of direction angle, mediated by the athlete's physical capacity.

Understand that as athletes move faster, they may not be able to execute the exact intended angle of their cut. This is normal and depends on their strength and control. Train athletes to manage this trade-off by improving their physical capacity, allowing them to maintain better control at higher speeds.

Daily supplementation with vitamin D (400-800 IU) combined with calcium (1000-1200 mg) reduces the risk of hip fracture by 16% in older adults, whereas vitamin D alone provides no significant fracture protection.

If you are an older adult looking to prevent hip fractures, taking Vitamin D alone is likely ineffective. You should take a daily combination of Vitamin D (400-800 IU) and Calcium (1000-1200 mg). This specific combination has been shown to significantly reduce hip fracture risk, whereas Vitamin D by itself does not.

Higher blood concentrations of 25-hydroxyvitamin D (25[OH]D) are associated with lower risks of fracture in observational studies, but this association is not replicated when using vitamin D supplementation alone in randomized trials.

Don't rely on Vitamin D alone to protect your bones. While people with naturally high Vitamin D levels have fewer fractures, taking Vitamin D supplements by themselves does not reduce fracture risk. You need to combine it with Calcium to see benefits.

Consuming broccoli or glucoraphanin-rich sources provides health benefits primarily through the formation of sulforaphane, but efficacy depends on the bioavailability of the source and individual microbiome capacity to convert glucoraphanin to sulforaphane.

To get the most benefit from broccoli, focus on getting enough glucoraphanin. This means choosing broccoli varieties known to be high in this compound (like certain sprouts or specific hybrids) rather than just any generic head. If you take supplements, be aware that sulforaphane is unstable, so look for stabilized formulations. Your gut bacteria play a key role in converting the precursor to the active form, so individual results may vary.

Exercise-based cardiac rehabilitation likely results in a slight reduction in all-cause mortality in patients with coronary heart disease.

While the reduction in death risk from exercise-based cardiac rehab is slight in the short term, it is a statistically significant benefit that contributes to overall survival.

Consumption of prebiotics (specifically inulin-type fructans) and probiotics reduces serum total and LDL cholesterol levels in hypercholesterolemic or dyslipidemic individuals.

Adding prebiotic fibers like inulin or probiotic-enriched foods to your diet can help lower bad cholesterol (LDL) and total cholesterol levels in people with high cholesterol.

Higher consumption of dietary cholesterol (specifically >300 mg/day) is significantly associated with a higher risk of incident cardiovascular disease and all-cause mortality in a dose-response manner among US adults.

If you are concerned about heart disease, limiting dietary cholesterol to under 300 mg per day and moderating egg intake (less than half an egg per day) is associated with a lower risk of cardiovascular events and death. This is particularly important if you have existing risk factors like high blood pressure or diabetes.

Higher waist-hip ratio (adjusted for BMI) causally influences lower sleep duration and lower sleep efficiency.

Managing waist-hip ratio through lifestyle changes may improve sleep duration and efficiency, independent of overall BMI.

Emotional eating mediates the association between depression and long-term weight gain (BMI and waist circumference), with this effect being significantly moderated by sleep duration such that short sleepers (<7h) are particularly vulnerable.

If you struggle with emotional eating and have depressive symptoms, prioritize getting 7+ hours of sleep. Short sleep duration significantly amplifies the link between your emotions and your weight gain. Managing sleep may be as critical as managing stress or diet for this specific group.

Chronic dietary l-carnitine supplementation induces gut microbiota to convert l-carnitine into trimethylamine N-oxide (TMAO), an atherogenic metabolite, via a two-step microbial pathway involving gamma-butyrobetaine (γBB).

If you eat red meat regularly, adding l-carnitine supplements may increase your levels of TMAO, a compound linked to heart disease risk. Vegans and vegetarians generally do not produce significant TMAO from l-carnitine unless they supplement chronically. If you are an omnivore, avoid l-carnitine supplements unless prescribed, as they may promote atherosclerosis pathways.

Menopause itself increases the risk of type 2 diabetes due to estrogen deficiency, leading to increased visceral fat, decreased energy expenditure, and impaired insulin secretion, which are partially reversed by MHT.

Menopause increases diabetes risk due to loss of estrogen, which affects fat distribution and insulin sensitivity. This risk is higher if menopause occurs early or surgically. MHT can help mitigate these risks if used for symptom management, but lifestyle factors remain critical.

Sustained hyperactivation of mTORC1 in skeletal muscle eventually causes atrophy and myopathy by inhibiting autophagy, whereas acute activation promotes hypertrophy.

While building muscle requires turning on growth signals, keeping them on constantly can damage muscle over time. Regular periods of rest and low signaling (like fasting or rest days) allow your muscles to recycle damaged parts, preventing long-term deterioration.

Metabolic surgery (specifically RYGB and SG) is an effective treatment for obesity-related hypertension, achieving hypertension remission in approximately 50-56% of patients and reducing medication burden significantly compared to medical therapy alone.

If you have obesity and high blood pressure that isn't controlled by lifestyle changes or medications, metabolic surgery (like gastric bypass or sleeve gastrectomy) is a highly effective option. It can lead to the remission of hypertension in more than half of patients, often reducing or eliminating the need for blood pressure medications. While lifestyle changes are the first step, they often fail long-term; surgery offers a durable solution for severe cases.

Younger men (≤44 years) and older women (≥65 years) represent the highest-risk subgroups for uncontrolled diabetes, exhibiting significantly worse glycemic and lipid profiles compared to other demographic groups.

If you are a man under 45 with diabetes, your risk for uncontrolled blood sugar and lipids is significantly higher than older patients. Do not assume youth protects you from complications; prioritize strict metabolic control to prevent long-term disability.

Short-term exercise training (both sprint interval and moderate-intensity continuous) reduces systemic and intestinal endotoxemia (measured by LBP) and modulates gut microbiota (increasing Bacteroidetes, decreasing Firmicutes/Bacteroidetes ratio) in insulin-resistant subjects.

If you are insulin-resistant or pre-diabetic, engaging in just two weeks of exercise—whether through short, intense sprints or moderate continuous cycling—can significantly improve your gut health by reducing inflammatory markers and shifting your gut bacteria towards a healthier profile. You do not need to exercise for hours; consistency and intensity matter.

Probiotics enhance intestinal barrier function and modulate the immune system by increasing adhesion to the intestinal mucosa, producing antibacterial substances, and reducing pro-inflammatory cytokines.

Understanding that probiotics work by strengthening your gut lining and calming inflammation helps explain why they might help with digestive issues. It is not just about 'adding good bacteria' but about how those bacteria interact with your existing gut environment to protect you.