Browse the evidence

Onion peel extract supplementation significantly improves endothelial function (Flow-Mediated Dilation) and increases circulating endothelial progenitor cells in overweight and obese patients, although it may not significantly reduce blood pressure or body weight in the general hypertensive population.

For individuals with obesity and hypertension, consuming onion peel extracts (rich in quercetin) may support vascular health by improving blood vessel function and increasing protective endothelial cells. This benefit exists even if overall blood pressure or body weight changes are modest in the general population.

Resistance exercise training increases glucose transport into skeletal muscle, but unlike aerobic training, it does not consistently increase GLUT4 protein levels.

Resistance training improves how your muscles handle glucose, even if it doesn't always increase the main glucose transporter (GLUT4) like aerobic exercise does. This suggests resistance training works through other mechanisms to help manage blood sugar.

Aerobic exercise preferentially induces oxidative fiber myokines (e.g., SDF1, irisin) which protect against cancer-induced atrophy, while anaerobic exercise induces glycolytic fiber myokines (e.g., IGF-1) that enhance protein synthesis.

To maximize muscle protection, vary your exercise. Aerobic exercise (like walking or cycling) boosts factors that stop muscle breakdown, while strength training boosts factors that build muscle. Combining both may offer the best myokine profile.

Myostatin and GDF11 are myokines that promote muscle wasting and are elevated in conditions like cancer, COPD, and aging, whereas exercise can reduce myostatin and restore other protective myokines.

High levels of myostatin, a protein that limits muscle size, are common in wasting diseases. Exercise helps lower myostatin levels, allowing muscles to maintain or regain mass more easily.

Consumption of high glycemic index (GI) carbohydrates four hours before bedtime significantly reduces sleep onset latency compared to low GI meals or meals consumed closer to bedtime.

If you struggle to fall asleep, try eating a carbohydrate-rich meal with a high glycemic index about four hours before you plan to sleep. This timing allows insulin to help clear competing amino acids from your blood, making it easier for tryptophan to reach your brain and promote sleep. Avoid eating this specific type of meal right before bed, as it may delay sleep onset.

Ginseng supplementation (Panax ginseng or Siberian ginseng) improves cognitive performance, anaerobic performance, and endurance capacity in untrained or moderately trained individuals, primarily through antioxidant properties and central nervous system stimulation.

If you are not a highly trained athlete, Ginseng (specifically Panax ginseng with standardized ginsenosides) may help boost your mental focus and short-burst physical performance. Stick to doses around 200mg daily. If you have high blood pressure, take blood thinners, or are a highly trained athlete, Ginseng likely won't help and may cause side effects like insomnia or heart rate issues.

Administration of a novel probiotic formulation (WBF-011) containing Akkermansia muciniphila, Anaerobutyricum hallii, Clostridium beijerinckii, Clostridium butyricum, and Bifidobacterium infantis significantly improves postprandial glucose control in subjects with type 2 diabetes.

If you have Type 2 Diabetes, adding a specific probiotic formulation (WBF-011) containing five specific anaerobic bacteria and inulin, taken twice daily with meals for 12 weeks, may help lower your post-meal blood sugar spikes and slightly improve your long-term A1c levels. This intervention was shown to be safe and well-tolerated in a clinical trial, suggesting it could be a useful adjunct to your current diabetes management plan, especially if you are already on metformin.

Dietary intake of melatonin-rich plant foods (particularly seeds and fruits) increases serum melatonin levels and urinary 6-sulfatoxymelatonin concentrations in humans, contributing to endogenous modulation.

To support your natural melatonin levels through diet, prioritize eating seeds (like sunflower, flax, sesame) and fruits (like tart cherries, grapes, olives). These plant parts contain the highest concentrations of melatonin found in nature. While your body produces melatonin, dietary intake from these sources contributes to serum levels, which may be particularly beneficial as endogenous production declines with age.

Luseogliflozin (an SGLT2 inhibitor) significantly reduces epicardial fat volume (EFV) in patients with type 2 diabetes over a 12-week period.

For patients with type 2 diabetes and high BMI, Luseogliflozin can reduce dangerous fat around the heart (epicardial fat) within 3 months. However, it may also reduce muscle mass, so combining this medication with resistance training is recommended to preserve strength.

Intermittent Fasting (IF) and Intermittent Energy Restriction (IER) improve insulin sensitivity (HOMA-IR) to a greater extent than Continuous Energy Restriction (CER) in some studies, potentially due to rapid mobilization of visceral and hepatic fat.

If you have insulin resistance or Type 2 Diabetes, trying 2 days of significant calorie restriction per week may improve your blood sugar control better than daily dieting, likely by clearing fat from your liver. Ensure you eat enough protein on all days to protect muscle.

Unimolecular GLP-1/glucagon receptor co-agonists produce superior weight loss and metabolic improvements compared to GLP-1 mono-agonists by combining central satiety signaling with peripheral thermogenesis and lipolysis, while the GLP-1 component buffers the hyperglycemic risks of glucagon.

This research supports the use of GLP-1/glucagon co-agonists (like those currently in clinical trials or recently approved, e.g., tirzepatide, though this paper predates specific approvals) for treating obesity and type 2 diabetes. These drugs work by hitting two receptors: one to reduce appetite (GLP-1) and one to burn energy (Glucagon). The key advantage is that they are more effective than older GLP-1-only drugs (like liraglutide) and do not raise blood sugar, thanks to the balancing effect of the GLP-1 component. They are administered once weekly via injection. Patients should be aware of potential nausea, which is common but often manageable, and that long-term safety data is still being gathered.

Resistance training (RT) and endurance training (ET) modulate distinct biochemical pathways to counteract sarcopenia, with RT primarily promoting net muscle protein anabolism and ET improving mitochondrial biogenesis and aerobic capacity.

To combat age-related muscle loss, older adults should engage in a balanced program of both resistance and endurance exercises. For resistance training, aim for at least two days per week, performing 8-12 repetitions of exercises targeting major muscle groups. Use a moderate to vigorous intensity (RPE 5-8). If joint stress is a concern, consider aquatic exercise or stationary cycling. Consistency is key, as both types of exercise have been shown to improve muscle strength, mitochondrial function, and overall muscle health.

Weight loss achieved through primary care interventions, whether pharmacologic or lifestyle-based, significantly attenuates over time, with an average regain of 0.53 kg per six months.

Do not expect your initial weight loss to stick if you stop the intervention. The body fights back against weight loss through hormonal changes. To maintain weight loss, you likely need to continue the intervention (medication or intensive lifestyle support) long-term, rather than treating it as a finite 'course'.

Omega-3 fatty acid supplementation does not enhance muscle protein synthesis in young men who are already consuming adequate protein and performing resistance exercise.

If you are a young man who eats enough protein and lifts weights, adding high-dose omega-3s (5g/day) likely won't give you extra muscle protein synthesis benefits beyond what you're already getting.

GLP-1 receptor agonists (GLP-1RA) are associated with a disproportionate reporting signal for specific neoplasms, particularly medullary thyroid cancer (MTC), papillary thyroid cancer (PTC), and pancreatic neoplasms, whereas overall tumor risk is not significantly increased.

GLP-1 receptor agonists do not increase the overall risk of cancer, but they are associated with specific, high-magnitude signals for medullary thyroid cancer (MTC), papillary thyroid cancer (PTC), and pancreatic neoplasms. Clinicians should maintain vigilance, particularly when combining GLP-1RA with DPP4 inhibitors, which may further increase reporting rates for these specific tumors. The benefits of GLP-1RA for cardiovascular and metabolic health remain significant, but patients with a history of MTC or pancreatitis should be carefully evaluated.

High-glycemic load carbohydrates drive obesity through calorie-independent hormonal mechanisms (specifically insulin-mediated fat storage and reduced energy expenditure) rather than solely through excess caloric intake.

Focus on reducing the glycemic load of your diet by minimizing refined carbohydrates, sugars, and processed grains. This approach addresses the hormonal drivers of fat storage (insulin) and energy partitioning, rather than relying solely on calorie restriction which may trigger metabolic slowdown and hunger.

Mendelian randomization studies suggest that genetic predisposition to MASLD via impaired VLDL secretion (PNPLA3, TM6SF2) may lower plasma lipids and potentially reduce coronary artery disease risk, whereas other MASLD genes show weak or no association with CAD.

This is a mechanistic insight rather than a direct intervention. It suggests that the way some people develop liver fat (by not secreting VLDL efficiently) might paradoxically protect them from heart disease. This highlights the complexity of the liver-heart axis.

Exposure to environmental obesogens (e.g., BPA, PFAS, pesticides) during critical developmental windows programs long-term metabolic dysfunction by hijacking redox signaling (ROS) and endocrine pathways, leading to increased adiposity and insulin resistance later in life.

To mitigate the impact of obesogens, prioritize reducing exposure to environmental chemicals that disrupt hormonal and redox signaling. This includes choosing fresh foods over ultra-processed items (which may contain obesogenic additives or packaging leachates), filtering drinking water, and minimizing the use of plastics (especially for heating food) and harsh household cleaners. While diet and exercise remain important, recognizing the role of environmental factors suggests that reducing exposure to these chemicals is a critical, often overlooked component of obesity prevention.

Use of GLP-1 receptor agonists (semaglutide, liraglutide, tirzepatide) is associated with a low incidence (1.18%) of psychiatric adverse events, including depression, anxiety, and suicidal ideation, with a small but significant number of fatal outcomes.

If you are taking semaglutide, liraglutide, or tirzepatide, be aware that mood changes like depression, anxiety, or suicidal thoughts are possible, though uncommon (approx 1%). Monitor your mental health closely. If you experience these symptoms, report them to your doctor immediately. Do not suffer in silence; early reporting helps manage safety risks.

Succinate signaling via the SUCNR1 receptor is required for strength gains from resistance training, as blocking this pathway compromises training-induced grip strength improvements despite enhancing endurance capacity.

For strength training, your body uses succinate signaling to build muscle and neural adaptations. You don't need to supplement succinate; just perform progressive resistance training. The paper suggests that if you were to block this specific pathway, you would lose strength gains, so ensure your training is consistent and progressive to naturally stimulate this mechanism.

Oral administration of the bis-lipidated GLP-1 receptor agonist MEDI7219 significantly reduces body weight and glucose excursions in a canine model of obesity and insulin resistance, demonstrating that peptide engineering and targeted delivery can overcome gastrointestinal barriers to achieve clinical efficacy.

This research validates a new class of oral GLP-1 drugs (like MEDI7219) that use specific engineering to survive digestion and absorb into the blood. In dogs, daily oral tablets successfully reduced weight and blood sugar. While human trials are not yet reported here, the mechanism suggests oral GLP-1s could eventually match injectables in efficacy while avoiding injections.

GLP-1 receptor agonist treatment is associated with a statistically significant increase in specific psychiatric adverse events, including nervousness, stress, eating disorders, insomnia, binge eating, fear of eating, and self-induced vomiting, with onset typically occurring within the first 30 days.

If you are taking a GLP-1 medication (like Ozempic, Wegovy, or Trulicity), be aware that psychiatric side effects are a recognized risk, not just a rare anecdote. Symptoms like nervousness, stress, insomnia, and changes in eating behavior (such as bingeing or fear of eating) can start within the first month of treatment. Because these reports are disproportionately high in the database, you should proactively monitor your mental health and mood, especially if you have a history of anxiety or eating disorders, and report any new or worsening symptoms to your prescriber immediately.

Rapid weight loss induced by GLP-1 receptor agonists (e.g., semaglutide) causes significant facial volume depletion and skin laxity, resulting in an aged appearance termed 'Ozempic face'.

If you are taking Ozempic or similar drugs, be aware that rapid weight loss can hollow out your face and make you look older. This is a known side effect. If it happens, consult a plastic surgeon about fillers or skin tightening to restore volume.

Sex hormone-binding globulin (SHBG) acts as a potential mediator in the causal relationship between higher cardiorespiratory fitness and lower type 2 diabetes risk.

Higher fitness is linked to higher levels of SHBG, which is known to protect against type 2 diabetes. This suggests that improving fitness may work partly by optimizing your hormone binding profiles.