Browse the evidence

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.

Resistance training induces an acute increase in myostatin expression followed by a chronic adaptive decrease in basal levels, facilitating hypertrophy.

When you lift weights, your body temporarily increases myostatin to manage muscle remodeling. Over weeks of consistent training, your baseline myostatin levels drop, allowing for greater muscle growth. Don't be confused by studies showing increased myostatin; this is often an acute response to the stress of exercise.

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.

Long-term high-protein diets significantly improve fasting insulin levels compared to low-protein diets, but this benefit disappears when only high-quality studies are analyzed.

You may see a small reduction in fasting insulin with a high-protein diet, but this does not guarantee better weight loss or health outcomes. Do not rely on high protein solely for insulin management, as the effect is inconsistent and not clinically significant in high-quality studies.

Physical exercise induces white-to-brown adipose tissue conversion via the release of irisin and natriuretic peptides, offering a metabolic benefit independent of cold exposure.

Regular physical exercise does more than burn calories in the moment; it signals your body to convert energy-storing white fat into energy-burning brown-like fat. This happens through hormones like irisin released by muscles and natriuretic peptides from the heart. Consistent exercise can thus improve your metabolic health and resistance to obesity over time.

Activation of PPAR-alpha using agonists like fenofibrate or fish oil reduces hepatic steatosis and insulin resistance in NAFLD by upregulating mitochondrial beta-oxidation and reducing de novo lipogenesis.

If you have fatty liver, focusing on weight loss and exercise is the most effective first step. Pharmacological interventions targeting PPAR-alpha (like fenofibrate) can help reduce liver fat and improve insulin sensitivity by boosting fat burning in the liver, but they are adjunctive to lifestyle changes.

Total activation of PPAR-gamma (e.g., via rosiglitazone) can be detrimental to liver histology by promoting hepatic lipogenesis, whereas partial activation (e.g., via telmisartan or pioglitazone) improves insulin sensitivity and reduces steatosis without the harmful lipid accumulation.

Not all diabetes medications that target PPAR-gamma work the same way for fatty liver. Total activation might increase liver fat, so partial activation strategies (like those with telmisartan or pioglitazone) are often preferred to improve insulin sensitivity without worsening liver fat.

Modulating gut microbiota using probiotics, prebiotics, antibiotics, or fecal microbiota transplantation improves glucose metabolism and insulin resistance in type 2 diabetes.

If you have type 2 diabetes, your gut bacteria play a key role in how your body handles sugar and insulin. You can positively influence these bacteria through specific probiotics and prebiotics (like those found in certain fermented drinks or fibers), which may help lower fasting blood sugar and improve insulin sensitivity. While not a cure, this is a valid therapeutic strategy alongside standard care.

Sleeping ≤ 4 hours per night during early pregnancy is associated with a significantly increased risk of gestational diabetes mellitus (GDM) compared to sleeping 9 hours.

If you are pregnant, aim for adequate sleep duration (around 9 hours as per this study's reference, or at least avoiding extreme shortness like ≤4 hours). This is particularly important in early pregnancy to help manage glucose levels and reduce GDM risk.

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.

Very low-volume SIT improves glycemic control (24h average blood glucose and glucose AUC) and increases GLUT4 protein content in men, but these specific metabolic adaptations were not observed in women in this study.

If you are a woman, be aware that this specific 3-minute SIT protocol may not improve your 24-hour blood glucose levels or increase muscle glucose transporters (GLUT4) to the same extent as it does for men, based on this study. While you still gain cardiovascular benefits (VO2 peak, blood pressure), you may need to combine this with other dietary or exercise strategies to manage blood sugar effectively.

Short-term administration of the MC4R agonist RM-493 significantly increases resting energy expenditure (REE) and shifts substrate oxidation toward fat in obese individuals.

For obese individuals, activating the MC4R pathway with the drug RM-493 increases the calories your body burns at rest by about 111 kcal per day and shifts your metabolism to burn more fat. This happens without raising blood pressure or heart rate in the short term, though mild side effects like nausea or sexual side effects can occur.

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.

Corticosteroid therapy in IBD patients is associated with adverse body composition changes, including reduced fat-free mass and increased fat mass, depending on the patient subgroup.

If you are prescribed corticosteroids for IBD, be aware they can cause muscle loss and fat gain, particularly in women. Discuss monitoring strategies with your doctor, but do not avoid necessary treatment due to these side effects, as active disease causes even greater body composition damage.

Exercise intensity, rather than age, drives the magnitude of the acute hormonal response (testosterone, growth hormone) to exercise in females.

To maximize your hormonal response to exercise, focus on intensity (how hard you feel and your heart rate) rather than worrying about your age. If you push the intensity, your body responds with higher anabolic hormones, regardless of whether you are 20 or 60.

High-intensity exercise (80% VO2max) elicits a significantly greater relative increase in circulating irisin levels compared to low-intensity exercise (40% VO2max) when energy expenditure is matched, with peak relative increases occurring 6-19 hours post-exercise.

To maximize the release of irisin, a hormone linked to metabolic health and fat oxidation, prioritize high-intensity running (80% of your max oxygen uptake) over low-intensity jogging, even if you burn the same number of calories. The benefits of high intensity on this specific marker persist for up to 19 hours after your workout.

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.

Fasting-mimicking diets (FMD) and periodic fasting provide healthspan benefits and rejuvenate systems (like hematopoietic and neural) by mimicking physiological responses to fasting without complete food deprivation.

You can achieve some of the regenerative benefits of fasting (like stem cell renewal) without starving yourself by using a Fasting-Mimicking Diet. This involves consuming very low calories and protein for specific periods, which triggers the body's stress response and regeneration pathways. This approach may be more feasible for people who find traditional fasting too difficult.

Weight loss interventions in breast cancer survivors lead to improvements in clinical biomarkers, specifically reductions in insulin, insulin resistance, LDL-cholesterol, and glucose, though effects on inflammatory markers and sex hormones are inconsistent.

Losing weight through diet and exercise can improve your blood sugar control and cholesterol levels, even after breast cancer treatment. This is particularly true if you lose at least 5% of your body weight.

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.