Browse the evidence

GLP-1 receptor agonists that reduce receptor internalization and beta-arrestin recruitment produce greater sustained insulin secretion and glycemic benefits without increasing nausea side effects compared to standard FDA-approved GLP-1 mimetics.

Current GLP-1 drugs often cause nausea because they trigger strong receptor internalization and beta-arrestin signaling. Research suggests that 'biased' agonists, which keep the receptor on the cell surface longer and avoid beta-arrestin, may provide better blood sugar control with fewer stomach side effects. While these specific compounds are not yet FDA-approved, the mechanism highlights why tolerability varies between different GLP-1 medications.

Vertical sleeve gastrectomy (VSG) and Roux-en-Y gastric bypass (RYGB) produce superior, durable weight loss and metabolic improvements compared to adjustable gastric banding (AGB), primarily through physiological mechanisms rather than simple mechanical restriction.

If you are considering bariatric surgery, understand that 'restrictive' procedures like gastric banding are likely to fail long-term compared to sleeve gastrectomy or gastric bypass. The success of VSG and RYGB comes from hormonal and neural changes, not just a smaller stomach. Choose the procedure based on physiological outcomes, not just surgical simplicity.

Long-term adherence to a vegan diet is associated with significantly lower serum concentrations of vitamin D, iodine, and selenium compared to non-vegetarians, despite high rates of supplement use.

If you follow a vegan diet, do not assume your nutrient status is optimal just because you eat plants. You are at high risk for deficiencies in Vitamin D, Iodine, and Selenium. Regular blood testing is essential, and you likely need targeted supplementation beyond a standard multivitamin, particularly for Vitamin D and Iodine, as plant-based sources are often insufficient or inconsistent.

Vegans have lower serum levels of EPA and DHA but maintain higher-than-expected EPA proportions due to the conversion of linolenic acid (LNA) from plant oils like rapeseed oil.

As a vegan, your EPA and DHA levels will likely be lower than those who eat fish. However, if you consume plant oils rich in alpha-linolenic acid (like rapeseed or flaxseed oil), your body converts some of this into EPA. This means your EPA levels may be higher than expected for a vegan, even without fish oil supplements.

A 6-week hip strengthening and movement education program targeting hip abductors and external rotators fails to alter abnormal running mechanics (hip adduction, internal rotation, pelvic drop) in female runners with excessive hip adduction, despite significantly increasing hip strength.

If you are a runner with knee pain or abnormal mechanics, simply strengthening your hips (glutes) is likely not enough to fix your running form. You need to combine strengthening with specific movement retraining (like practicing the squat or running mechanics with feedback). Strength without the correct motor pattern does not change how you run.

In obese and insulin-resistant individuals, adipose tissue exhibits a structural remodeling characterized by decreased capillary density, increased large vessel formation, reduced elastin, and increased Collagen V deposition around large vessels, which collectively inhibit angiogenesis and promote tissue stiffness.

This research highlights that obesity involves complex structural changes in fat tissue, specifically a shift toward stiffer tissue with fewer capillaries and more large vessels. While this paper does not prescribe a specific exercise or diet, it underscores that metabolic health is closely tied to tissue structure. Managing insulin sensitivity through lifestyle interventions may help mitigate these structural changes, though the paper focuses on describing the pathology rather than offering a treatment protocol.

Epidemiological associations showing that nibblers are leaner than gorgers are likely artifacts caused by dietary under-reporting and reverse causality (omitting meals to lose weight).

Don't blame yourself for eating fewer meals. The idea that 'nibblers are leaner' is a statistical illusion caused by people hiding their snacking or skipping meals to lose weight. Focus on total calories, not the schedule.

Metformin use significantly alters gut microbiota composition and contributes to its beneficial effects on glucose homeostasis, acting as a strong confounder in metagenomic studies of T2DM.

If you take Metformin for diabetes, your gut bacteria are likely different from non-users. This is a known effect of the drug and may contribute to its benefits. Do not stop taking prescribed medication to 'fix' your microbiota naturally without consulting your doctor.

PLIN2 and PLIN3 regulate lipid droplet hydrolysis in non-adipose tissues but are less effective barriers against lipases than PLIN1, and do not compensate for PLIN1 loss in white adipose tissue.

While PLIN1 is the main protector of fat in fat cells, other proteins (PLIN2/3) handle fat storage in other organs like the liver and muscle. These other proteins are less strict barriers, allowing for more flexible fat usage in tissues that need energy, such as heart and muscle.

Activation of the AMPK pathway inhibits hepatic glucose production, thereby lowering blood glucose levels in type 2 diabetes.

AMPK activation helps lower blood sugar by stopping the liver from producing too much glucose.

Regular consumption of non-soya pulses does not significantly affect serum HDL-cholesterol levels.

While pulses are excellent for lowering bad cholesterol and triglycerides, don't expect them to significantly raise your 'good' HDL cholesterol. Focus on their proven benefits for LDL and triglycerides.

Pharmacological agents including statins, PPAR-gamma agonists, ARBs, and incretin-based therapies (sitagliptin, exenatide) can modulate TLR2/4 expression and reduce downstream inflammatory cytokines.

If you are on medications for cholesterol, blood pressure, or diabetes, some of these drugs may also help reduce inflammation by targeting TLRs. Consult your doctor about these effects.

The hormone ghrelin activates AMPK in the hypothalamus to increase appetite and food intake, whereas leptin and insulin inhibit AMPK to decrease appetite.

Hunger hormones like ghrelin turn on your brain's energy sensor (AMPK) to make you eat, while satiety hormones like leptin turn it off. This balance controls your appetite.

Adiponectin activates AMPK to promote fat oxidation and energy expenditure, while also increasing appetite via hypothalamic AMPK activation.

Adiponectin, a hormone from fat cells, helps burn fat in your muscles and liver. Interestingly, it may also signal your brain to eat, mimicking hunger hormones.

Loss-of-function mutations in the Melanocortin-4 Receptor (MC4R) gene cause obesity with variable, age-dependent penetrance, where the likelihood of developing obesity increases significantly with age and across generations due to environmental factors.

If you have a known MC4R loss-of-function mutation, you cannot rely on 'willpower' or educational advantages to prevent obesity. Your risk increases with age and exposure to modern food environments. You must proactively manage your environment (food access, activity levels) starting from childhood and continuing into adulthood, as the genetic risk is not static but accumulates over time.

Selenium supplementation improves health outcomes and reduces mortality in patients with severe sepsis.

For patients with severe sepsis, selenium supplementation has been shown to improve health and reduce mortality. This is particularly relevant as sepsis can deplete selenium levels.

A mobile phone intervention (HEART) does not significantly increase exercise capacity (peak oxygen uptake, PVO2) in people with ischaemic heart disease compared to usual care.

While this mobile phone program helps you be more active, it may not significantly improve your heart's ability to use oxygen (PVO2). You might need more intense exercise to see improvements in cardiorespiratory fitness.

Low socioeconomic status (SES) is associated with accelerated epigenetic aging, specifically an increase in biological age of approximately 1 year compared to high SES, independent of major lifestyle risk factors.

Social environment impacts biological aging. While you cannot change your past, improving your social and economic conditions, especially in early life, may help slow down biological aging processes. Focus on reducing chronic stress and building supportive social networks as these are key components of socioeconomic well-being.

Aging adipose tissue undergoes early structural and functional decline, characterized by visceral fat redistribution, loss of brown/beige fat, and accumulation of senescent cells, which drives systemic metabolic dysfunction and accelerates aging.

Your fat cells are not just storage; they are active organs that signal your body's health status. As you age, these signals can become harmful, leading to inflammation and metabolic issues. Maintaining healthy adipose tissue through balanced nutrition and activity is crucial for slowing down age-related decline.

Aging is associated with a decline in skeletal muscle mitochondrial capacity, exercise efficiency, and insulin sensitivity, even when habitual physical activity levels are comparable to young adults.

Aging naturally reduces muscle mitochondrial capacity and insulin sensitivity, even if you stay active. This decline contributes to reduced exercise efficiency and physical function, highlighting the importance of targeted exercise training to mitigate these age-related changes.

Increasing dietary alpha-linolenic acid (aLNA) intake results in negligible conversion to long-chain n-3 fatty acids (EPA and DHA) in humans, rendering it significantly less effective than direct EPA/DHA consumption for improving cardiovascular or inflammatory health markers.

Eating flaxseed, walnuts, or canola oil (high in aLNA) is healthy, but it will not significantly raise your levels of EPA and DHA, the long-chain fats critical for brain and heart health. If your goal is to increase EPA/DHA status, you should consume fatty fish or fish oil supplements directly, as your body cannot efficiently convert plant oils into these specific fats.

Sleep quality shows a linear increase from Monday to Friday for all individuals, regardless of their mindfulness levels.

Expect your sleep quality to naturally improve as the work week progresses, likely due to completing tasks and anticipating the weekend. This trend occurs for everyone, regardless of their mindfulness level.

Young men with high-normal blood pressure exhibit lower serum adiponectin, smaller LDL particle size, and higher resting heart rate compared to those with optimal blood pressure, independent of BMI.

If your blood pressure is in the 'high-normal' range (e.g., 130-139/85-89 mmHg), do not assume you are metabolically healthy. This state is associated with lower levels of protective adiponectin, less favorable LDL particle size, and higher resting heart rate compared to optimal blood pressure. Prioritize lifestyle interventions to improve insulin sensitivity and lower resting heart rate to mitigate the risk of progressing to type 2 diabetes and cardiovascular disease.

Dietary interventions that substitute n-6 PUFA for trans-fatty acids (TFA) and saturated fatty acids (SFA) without simultaneously increasing n-3 PUFA produce a non-significant trend toward increased all-cause mortality.

Replacing trans and saturated fats with n-6 oils alone may slightly increase the risk of death from any cause, although this specific finding was not statistically significant. It reinforces the need to balance n-6 intake with n-3 sources.