Browse the evidence

Cinnamon supplementation (120 mg/d to 6 g/d) significantly reduces fasting plasma glucose, total cholesterol, LDL-C, and triglycerides in patients with type 2 diabetes, but has no significant effect on hemoglobin A1c.

If you have Type 2 Diabetes, cinnamon supplements may help lower your fasting blood sugar and bad cholesterol (LDL) compared to doing nothing, but do not expect it to replace your medication or significantly lower your 3-month average blood sugar (HbA1c). The benefits are modest and inconsistent due to varying product quality. Consult your doctor before starting, especially if you take blood thinners or have liver issues, as high doses of Cassia cinnamon contain coumarin.

Personalized medicine, utilizing genetic screening and pharmacogenomics, improves diabetes management outcomes by tailoring treatment plans to individual genetic makeup, lifestyle, and health characteristics, thereby optimizing medication choices and reducing adverse reactions.

If you have diabetes, ask your doctor about personalized medicine options. This might include genetic testing to predict your risk or response to specific drugs, and using technologies like Continuous Glucose Monitors (CGM) to get real-time feedback. The goal is to move away from a standard 'one-size-fits-all' approach to a plan tailored to your specific genetics and lifestyle, which can reduce side effects and improve long-term health.

Continuous Glucose Monitoring (CGM) and closed-loop 'artificial pancreas' systems significantly enhance glycemic control and reduce hypoglycemia risk by providing real-time data and automated insulin delivery.

If you use insulin, ask your doctor about Continuous Glucose Monitoring (CGM). These devices track your blood sugar 24/7 and can even automatically adjust insulin delivery (artificial pancreas). This reduces the risk of dangerous low blood sugar and helps you maintain better control without constant finger pricks.

Personalized glycemic targets, adjusted for age, comorbidities, and hypoglycemia risk, improve patient outcomes by minimizing severe hypoglycemic events and enhancing quality of life, compared to rigid standard targets.

Work with your doctor to set a blood sugar target that is right for YOU. If you are older or have other health issues, a slightly higher blood sugar target might be safer to prevent dangerous lows. This personalized approach improves your quality of life and reduces hospital visits.

Resveratrol supplementation (1500 mg/day) significantly decreases testosterone and dehydroepiandrosterone sulfate levels in women with Polycystic Ovary Syndrome (PCOS).

Women with PCOS may benefit from 1500 mg/day of resveratrol supplementation, which has been shown to significantly reduce excess testosterone and DHEAS levels over 3 months. Consult a doctor before starting.

Ketogenic diets reduce perceived hunger and food intake primarily through hormonal mechanisms, specifically by suppressing the orexigenic hormone ghrelin and maintaining anorexigenic cholecystokinin (CCK) secretion, rather than solely through caloric restriction.

To reduce hunger, try a ketogenic diet with less than 20g of carbs daily. This works by lowering ghrelin (the hunger hormone) and keeping CCK (the fullness hormone) active. Don't confuse this safe state with diabetic ketoacidosis; your blood pH remains normal.

Metformin administration (up to 2500 mg/day) produces significant weight loss (average 5.8 kg) in non-diabetic obese individuals, with the magnitude of weight loss positively correlated with the degree of baseline insulin resistance.

If you are obese but do not have diabetes, metformin can help you lose weight, especially if you have high insulin resistance. The typical dose is 1500-2500 mg daily, but you must start low (500 mg) and increase it slowly over weeks to avoid stomach upset. This works best if you do not simultaneously try to diet or change your exercise habits, as the drug's metabolic effects are the primary driver.

Adjunctive therapies such as pramlintide, metformin, and GLP-1 receptor agonists can improve glycemic control and promote weight loss or weight neutrality in Type 1 Diabetes when added to insulin therapy.

If you have Type 1 Diabetes and are struggling with weight gain from insulin, ask your doctor about adjunctive therapies like pramlintide, metformin, or GLP-1 agonists. These medications may help you lose weight or maintain your weight while improving your blood sugar control. They are not a replacement for insulin but can be added to your regimen.

Obstructive sleep apnea (OSA) is strongly correlated with obesity, where upper airway fat deposits narrow the airway and decrease muscle activity, leading to hypoxic episodes that cause tissue hypoxia and subsequent atherosclerosis.

If you have obesity, getting screened for sleep apnea is critical because the resulting sleep fragmentation and hypoxia drive hormonal imbalances (like increased ghrelin and decreased leptin) that make weight loss harder and increase cardiovascular risk. Treating OSA (e.g., with CPAP) and improving sleep duration can help restore hormonal balance and support weight management efforts.

Short sleep duration (less than 7 hours) is associated with increased obesity risk, visceral obesity, and metabolic syndrome due to hormonal imbalances (increased ghrelin, decreased leptin) and increased caloric intake.

Aim for at least 7 hours of sleep per night. Short sleep disrupts hormones (ghrelin and leptin) that control hunger, making you more likely to overeat and gain weight. Improving sleep duration is a key strategy for weight management.

Dietary fermentable carbohydrates (FC) and their fermentation product, short-chain fatty acids (SCFA), activate the G-protein-coupled receptor FFA2 (GPR43) on colonic L-cells, stimulating the secretion of anorexigenic hormones PYY and GLP-1, which reduces food intake and regulates energy homeostasis.

To leverage the body's natural appetite-regulating hormones, prioritize foods rich in fermentable fibers (like fruits, vegetables, and resistant starches) over non-fermentable fibers or refined grains. These fibers feed gut bacteria to produce short-chain fatty acids, which activate receptors that signal fullness to your brain. Avoid SCFA supplements as they are absorbed too early in the digestive tract to work effectively on these specific receptors.

Social jetlag exceeding 2 hours is associated with a 2-fold increased risk of metabolic syndrome and diabetes/prediabetes in adults under 61 years of age.

If you are under 61, try to keep your sleep schedule consistent between weekdays and weekends. A difference of more than 2 hours in your midpoint sleep time (social jetlag) is linked to a significantly higher risk of metabolic syndrome and diabetes. You don't need perfect sleep, but minimizing the shift between work and weekend sleep times can help protect your metabolic health.

Low-glycemic index diets promote weight loss and reduce body fat compared to high-glycemic index diets, primarily by enhancing satiety, minimizing postprandial insulin secretion, and increasing fat oxidation.

To manage your weight, choose low-glycemic index carbohydrates like legumes, whole grains, and most fruits. These foods keep you fuller for longer and help your body burn fat rather than storing it. Avoid high-glycemic foods like white bread and potatoes, which can lead to increased hunger and fat gain.

DHA supplementation significantly reduces blood pressure and heart rate, whereas EPA supplementation does not produce these specific hemodynamic effects.

If you are looking to lower blood pressure or heart rate, DHA supplementation (around 3-4g/day) appears more effective than EPA. Generic fish oil mixes may not provide these specific hemodynamic benefits because EPA does not seem to lower BP or HR in humans, even though it lowers triglycerides like DHA does.

Among women, both short (<5 hours) and long (≥8 hours) sleep durations are associated with adverse lipid profiles, specifically high serum triglycerides and low HDL cholesterol, forming a U-shaped risk curve relative to the 6-7 hour reference group.

For women, aiming for 6-7 hours of sleep appears to be the optimal window for maintaining healthy triglyceride and HDL cholesterol levels. Both sleeping less than 5 hours and more than 8 hours is associated with significantly higher risks of dyslipidemia. While this study is observational, prioritizing consistent, moderate sleep duration may support cardiovascular health markers.

Among men, sleeping ≥8 hours is associated with a significantly lower risk of high LDL cholesterol compared to sleeping 6-7 hours, suggesting a potential benefit of long sleep for this specific lipid marker in men.

For men, sleeping 8 hours or more may be associated with lower LDL cholesterol levels compared to sleeping 6-7 hours. However, this does not mean long sleep is universally better, as other lipid markers (triglycerides, HDL) did not show significant associations in men. Men should prioritize overall sleep quality and consistency.

Homozygosity for the C allele at position -174 of the IL-6 gene is associated with lower plasma IL-6 levels, increased insulin sensitivity, and lower postload glucose levels compared to carriers of the G allele.

This research highlights that your genetics, specifically the IL-6 gene, influence how sensitive you are to insulin. If you carry the G allele, you may have higher baseline inflammation and lower insulin sensitivity. While you cannot change your genes, this knowledge underscores the importance of maintaining healthy body composition and managing inflammation, as these factors interact with your genetic predisposition to affect metabolic health.

Overweight individuals (BMI 25-30 kg/m2) experience a significant decrease in insulin sensitivity when consuming a saturated fat diet compared to a monounsaturated fat diet, suggesting they are more susceptible to dietary fat-induced insulin resistance.

If you are overweight, be mindful of saturated fat intake. This study suggests that consuming a diet high in saturated fats (9% of energy from palmitic acid) can significantly reduce your insulin sensitivity compared to monounsaturated fats, even if you are otherwise healthy. Lean individuals may not experience this drop.

Cross-sex hormone therapy (testosterone for trans men, estrogen/anti-androgens for trans women) significantly improves quality of life, mood, and reduces perceived stress and cortisol levels.

If you are transgender and experiencing gender dysphoria, cross-sex hormone therapy is the standard medical treatment to align your body with your identity. This treatment is proven to improve quality of life, mood, and reduce stress. While there are physical risks to monitor (like bone and heart health), the psychological benefits are significant. Work with a provider to find the right regimen for you.

Testosterone therapy in transgender men is effective for virilization, with higher doses achieving effects faster but not resulting in greater final outcomes compared to lower doses over the intermediate term.

For trans men, testosterone therapy effectively causes virilization. While higher doses might speed up early changes, they do not produce better results than lower doses after six months. It is safer to start with a lower dose and titrate up to a target range (300-1,000 ng/dL) to minimize risks while achieving the same physical changes.

High DHA fish oil supplementation slows the rate of cognitive decline in older adults, although its effects on depression disorders remain unclear.

For older adults concerned about memory loss, high DHA fish oil (where DHA is higher than EPA) may help slow cognitive decline. However, do not expect it to treat depression, as evidence for that is currently unclear.

Yoga interventions may reduce oxidative stress, blood pressure, and medication use, and enhance mood, sleep, and quality of life in adults with Type 2 Diabetes, though evidence is more limited than for glycemic control.

Beyond blood sugar, yoga can help manage stress, improve sleep, and potentially lower blood pressure and medication needs. While the evidence is not as robust as for glucose control, these benefits make it a valuable holistic tool for diabetes management.

Dietary supplementation with unsaturated fatty acids (specifically Omega-3 PUFAs like EPA and DHA) preserves skeletal muscle mass and function in pathological conditions such as cancer cachexia and aging by reducing inflammation and enhancing protein synthesis.

For older adults or those with muscle-wasting conditions, increasing intake of Omega-3 fatty acids (EPA/DHA) through diet or supplementation may help preserve muscle mass and strength by reducing inflammation and supporting protein synthesis.

Training with low carbohydrate availability (train-low) modulates molecular cell signaling pathways to promote oxidative phenotype adaptations, potentially enhancing training adaptations at the cost of immediate performance.

Consider occasionally training with low carbohydrate availability (e.g., fasted or after a low-CHO meal) to trigger specific molecular signals that may enhance your body's oxidative capacity and mitochondrial function. This is an adaptation strategy, not a performance strategy, so expect lower intensity during these specific sessions.