Browse the evidence

Liraglutide (GLP-1 analogue) barely met the primary endpoint for NASH resolution in a small trial, while Sitagliptin showed no effect on liver histology.

GLP-1 therapies like Liraglutide show marginal benefit for NASH resolution, while others like Sitagliptin show no histological benefit. They are not primary treatments.

Methylene blue does not significantly extend median lifespan in male or female mice, but significantly increases maximum lifespan (90th percentile) in females.

Methylene blue did not extend the average lifespan of mice, but it did slightly increase the maximum lifespan of female mice. This suggests a very limited potential for extending the very end of life, but not overall longevity.

Specific blood lipid profiles (e.g., levels of triglycerides, lysophosphatidylcholine, and apolipoprotein E alleles) correlate with human aging and exceptional longevity.

Your blood lipid profile and ApoE genotype are markers of your biological aging and disease risk. While you cannot change your genotype, monitoring triglycerides and lysophosphatidylcholine levels may provide insights into your metabolic health. Focus on maintaining healthy lipid levels through diet and exercise.

Obesity is associated with a gut microbiota composition characterized by a lower proportion of Bacteroidetes and a higher proportion of Firmicutes compared to lean individuals, a pattern observed in both murine models and human studies.

Focus on a diverse, fiber-rich diet rather than trying to target specific bacterial ratios, as the relationship between microbiota and obesity is complex and not fully understood in humans. Dietary patterns that support microbial diversity (e.g., high fiber) are more actionable than trying to manipulate specific phyla ratios.

Maternal intake of methyl-donating nutrients (folate, vitamin B12) during pregnancy can counteract the negative epigenetic effects of environmental toxins like Bisphenol A (BPA), preventing adverse offspring phenotypes such as obesity and cancer susceptibility.

If you are pregnant or planning pregnancy, prioritize foods rich in methyl donors like leafy greens (folate), eggs, and liver (B12/choline). This helps protect the developing fetus's epigenome from environmental toxins like BPA, potentially reducing long-term risks of obesity and metabolic disease. Focus on whole foods rather than supplements alone.

Urbanization is a major determinant of obesity in the EMR, associated with decreased physical activity and increased availability of high-fat foods.

If you live in an urban area, be aware that your environment may promote obesity through less activity and more access to fast food. Consciously counteract this by planning physical activity and choosing healthier food options.

Longer duration of breastfeeding is associated with a decreased prevalence of overweight in children in the EMR.

Breastfeed for as long as possible. Longer duration is linked to lower overweight risk in children.

SIRT3 polymorphisms are associated with human longevity, with specific variants being more common in centenarians.

Genetic variants in SIRT3 may play a minor role in human longevity, but evidence is inconsistent. Lifestyle interventions like calorie restriction and exercise remain the most reliable way to influence healthspan.

Calorie restriction extends lifespan and delays age-related diseases through a regulated neuroendocrine and metabolic response (involving SIR2/SIRT1 and insulin/IGF-1 signaling) rather than merely reducing the mechanical accumulation of oxidative or glycation damage.

Calorie restriction works by signaling your body to shift into a maintenance mode, not just by burning fewer calories. This involves lowering insulin and growth hormone levels, which triggers cellular repair pathways (like SIRT1). To leverage this, focus on reducing caloric intake moderately (25-60% below ad libitum) to trigger these hormonal shifts, rather than extreme fasting which may not sustain the steady-state benefits observed in studies.

Bariatric surgery (BS) induces initial weight loss through foregut exclusion-mediated hormonal upregulation of satiety hormones (GLP-1, PYY) and downregulation of ghrelin, but long-term weight regain (WR) is driven by the subsequent normalization or decline of these hormonal levels, alongside behavioral factors like dietary non-adherence and grazing.

If you had bariatric surgery and are regaining weight, recognize that your body's hormonal signals (hunger/satiety) may have changed back towards pre-surgery levels. This is a known biological mechanism, not just a personal failure. Focus on behavioral strategies (dietary counseling, monitoring) to counteract these biological drives, as hormonal interventions alone have shown mixed results.

Gut microbiota manipulate host eating behavior and cravings to enhance microbial fitness, potentially at the expense of host health, through mechanisms including vagus nerve hijacking, neurotransmitter production, and receptor alteration.

Instead of relying solely on willpower to fight cravings, consider that your gut bacteria might be driving them. You can influence your microbiota through diet (prebiotics/probiotics), which may help reduce cravings and improve eating habits over time.

Desacyl ghrelin induces a negative energy balance by decreasing food intake and delaying gastric emptying, acting via the hypothalamus.

This research suggests that desacyl ghrelin, often overlooked in favor of acylated ghrelin, plays a significant role in suppressing appetite and slowing digestion. While this is proven in mice, it implies that therapies targeting desacyl ghrelin pathways could potentially aid in weight management by reducing food intake and gastric emptying rates.

Higher endogenous estradiol (E2) levels are not significantly associated with the risk of metabolic syndrome in aging men, although they are associated with specific risk factors like waist circumference and triglycerides.

In aging men, higher estradiol levels do not appear to protect against metabolic syndrome, nor do they significantly increase the overall risk. However, higher E2 is linked to increased waist circumference and triglycerides. Focus on overall metabolic health through diet and exercise rather than targeting estradiol levels specifically, as the relationship is complex and not protective for the syndrome as a whole.

Treatment with Bone Morphogenetic Protein 7 (BMP7) induces tissue-resident progenitor cells in skeletal muscle and subcutaneous white fat to differentiate into brown adipocytes expressing UCP1, thereby increasing energy expenditure.

This research identifies a specific protein (BMP7) that can turn fat-storing cells in your muscles and subcutaneous fat into energy-burning brown fat cells. While this is currently a laboratory finding in mice and cell cultures, it suggests that future therapies might target these specific progenitor cells to treat obesity by increasing your body's natural energy expenditure.

Low-level oxidative stress (ROS) acts as a beneficial signaling molecule that extends healthspan and lifespan, whereas the traditional view that ROS is purely damaging is an oversimplification.

Do not assume that eliminating all oxidative stress is the goal for longevity. The body requires a baseline level of reactive oxygen species (ROS) to trigger protective signaling pathways (like SIRT1 and autophagy). Extreme antioxidant supplementation may interfere with these necessary signals and potentially increase health risks. Focus on maintaining metabolic health rather than chasing zero oxidative stress.

SIRT1 activity is context-dependent and can be inhibited by chronic oxidative stress through oxidative modifications of its cysteine residues, leading to reduced autophagy and increased inflammation.

SIRT1 is not a simple 'on/off' switch for longevity. In states of chronic stress or aging, high oxidative stress can physically inhibit SIRT1 function. Therefore, strategies to support SIRT1 must also address oxidative balance. Over-reliance on SIRT1 activators without managing overall cellular stress may be ineffective.

Inhibition of ceramide synthesis improves glucose and energy metabolism by recovering insulin signaling in liver and muscle.

While direct ceramide inhibitors like myriocin show promise in research, they are not currently standard human treatments. Focus on reducing saturated fat intake to naturally lower ceramide levels.

Salicylate (the active metabolite of aspirin and salsalate) activates AMPK directly by binding to the beta-1 subunit, independent of AMP/ADP levels, and improves metabolic parameters in subjects with insulin resistance.

Salsalate, a form of salicylate, has been shown in short-term trials to improve blood sugar and insulin levels in people with prediabetes or obesity. It works by directly activating an energy-sensing enzyme (AMPK) in the body. While promising, it is not yet a standard first-line treatment.

Metformin use is associated with a significantly lower incidence of cancer (approx. 30% risk reduction) in type 2 diabetic patients, likely mediated by AMPK activation which suppresses tumor growth.

Taking metformin for diabetes is associated with a lower risk of developing certain cancers, particularly colon and liver cancer. This is a beneficial side effect of the drug, but it should not be used as a primary cancer prevention strategy.

Six-month treatment with the GLP-1 analog liraglutide prevents the decline of cerebral glucose metabolism (CMRglc) in patients with Alzheimer's disease, although it does not significantly reduce amyloid-beta deposition or improve cognitive scores.

For patients with Alzheimer's, a 6-month course of liraglutide (a GLP-1 analog) may help maintain brain glucose metabolism, which is linked to cognitive function and disease progression. However, this treatment did not reduce amyloid plaques or improve cognitive test scores in this specific study. Patients should be aware of potential gastrointestinal side effects like nausea, which are often temporary, and the need for daily injections.

Dietary adherence to national guidelines (≥5 servings of fruits/vegetables daily, <30% calories from fat, <10% from saturated fat) is suboptimal in the majority of adults with type 2 diabetes.

Try to eat at least 5 servings of fruits and vegetables daily. Reduce fat intake to less than 30% of total calories and saturated fat to less than 10%. Focus on adding healthy foods rather than just restricting unhealthy ones.

Lower income, older age (≥65 years), and female gender are independently associated with physical inactivity in adults with type 2 diabetes.

If you are older, female, or have a low income, you may face barriers to exercise. Seek out community-based programs or low-cost activities like walking. Consult a healthcare provider for an individualized plan.

Roux-en-Y gastric bypass (RYGB) surgery induces a profound shift in gut microbiota, specifically a 52-fold increase in Proteobacteria (notably Enterobacter hormaechei) and a decrease in Firmicutes, which correlates with weight loss and metabolic enhancement.

Roux-en-Y gastric bypass surgery significantly alters gut bacteria, increasing Proteobacteria and decreasing Firmicutes. This microbial shift is linked to improved metabolism and weight loss, suggesting that surgery's benefits extend beyond simple calorie restriction.

RYGB surgery leads to decreased faecal bile acids and altered energy metabolism, including decreased urinary succinate, 2-oxoglutarate, citrate, and fumarate, indicating modulated mitochondrial function.

Surgery changes how the body processes energy, reducing certain metabolic byproducts in urine. This suggests a shift in how mitochondria function after surgery.