Browse the evidence

Higher personal economic status is associated with specific gut microbiota shifts (increased Bacteroides, decreased Prevotella) that do not necessarily correlate with increased metabolic syndrome risk, indicating that economic status alone does not predict dysbiosis.

Do not assume that moving to a higher economic bracket automatically worsens your gut health. This study shows that higher income was associated with a microbiome profile that was *not* more dysbiotic. Focus on maintaining physical activity to prevent MetS, as diet quality may actually improve with income.

Long-term instability of the intestinal microbiome is significantly associated with metabolic liver disease (FLD) and diabetes mellitus, characterized by an increase in facultative pathogens like Enterobacteriaceae and Escherichia/Shigella.

If you have metabolic liver disease or diabetes, your gut microbiome is likely less stable and may harbor more opportunistic pathogens. This instability is a marker of metabolic health rather than just a random fluctuation. Managing metabolic health may be key to maintaining microbiome stability.

High initial alpha diversity, female sex, high household income, and preserved exocrine pancreatic function are associated with the greatest stability of the faecal microbiota over a 5-year period.

Maintaining high microbial diversity and pancreatic health may help keep your gut microbiome stable. While you cannot change your sex or income, focusing on metabolic health and avoiding factors that reduce diversity (like unnecessary antibiotics) may support stability.

Microbiota instability and metabolic diseases like FLD and diabetes are linked to an increased predicted microbial potential for lipopolysaccharide (LPS) biosynthesis, which may trigger proinflammatory cytokines and aggravate metabolic disorders.

An unstable gut microbiome in the context of metabolic disease may lead to higher levels of bacterial components (LPS) that trigger inflammation. This suggests that managing gut health could potentially reduce inflammatory burden in metabolic disorders.

Calcium supplementation (≥1,000 mg/day) increases the risk of cardiovascular events, including myocardial infarction and coronary heart disease, particularly in men and postmenopausal women.

If you are taking calcium supplements, especially doses over 1,000 mg per day, be aware that this may increase your risk of heart disease, particularly if you are a man or postmenopausal woman. Prioritize dietary calcium sources, which do not appear to carry this risk, and consult your doctor about your specific cardiovascular risk profile before continuing high-dose supplementation.

In obese individuals, systemic inflammation drives a shift in tryptophan metabolism toward the kynurenine pathway (increased KYN/TRP ratio) and away from serotonin and microbial indole production, correlating with higher inflammatory markers.

This research highlights that obesity is linked to specific changes in how your body processes tryptophan, shifting it away from serotonin production and toward inflammatory pathways. While this paper does not offer a direct intervention, it suggests that managing systemic inflammation and gut health (via diet and lifestyle) may be key to normalizing these metabolic pathways.

Mitochondrial dysfunction during aging leads to the release of mitochondrial DAMPs (specifically cell-free mtDNA and TFAM), which trigger sterile inflammation via TLR, NLRP3, and cGAS-STING pathways, thereby driving 'inflamm-aging'.

Focus on maintaining mitochondrial health through regular physical activity, particularly resistance and endurance training, which supports mitochondrial biogenesis and quality control. This helps reduce the release of inflammatory mitochondrial DNA fragments into the bloodstream, potentially lowering chronic age-related inflammation.

DNA methylation patterns change dynamically throughout the lifespan, serving as a molecular marker for monitoring aging and predicting life expectancy, although the underlying causal mechanisms remain largely undiscovered.

Your DNA methylation patterns are not fixed; they change with age and environment. While we cannot yet reverse aging via methylation, tracking these changes (biological age) may offer insights into health status. Lifestyle factors like physical activity and diet influence these patterns, suggesting that maintaining a healthy lifestyle may positively impact your epigenetic profile.

Implementing a small incremental increase in sugar-sweetened beverage (SSB) tax rates (e.g., 13% to 18%) results in only small price increases and small reductions in SSB purchases, which is unlikely to significantly reduce obesity or noncommunicable diseases.

If you are designing public health policy, know that small tax hikes (like 5%) have minimal impact on consumption. To drive significant behavior change, tax rates must be substantial enough to alter shelf prices meaningfully, or they must be part of a broader regulatory strategy.

Decreasing the tax rate on low-sugar or artificially sweetened beverages (L-SSBs) leads to a significant increase in their purchase volume, potentially offsetting the health benefits of reduced high-sugar beverage consumption.

When designing tax policies, lowering taxes on diet drinks can lead to a surge in their consumption. Policymakers must consider if this substitution aligns with broader health goals, as artificial sweeteners may have their own health implications.

SGLT2 inhibitors lower blood glucose in Type 2 Diabetes by blocking renal glucose reabsorption, resulting in increased urinary glucose excretion without causing hypoglycemia.

If you have Type 2 Diabetes, SGLT2 inhibitors are a class of medication that helps your kidneys remove excess sugar through urine. This lowers blood sugar and can help with weight loss, without the risk of dangerously low blood sugar (hypoglycemia) common in other treatments. Be aware of a higher risk for urinary or fungal infections.

Metformin reduces fasting plasma glucose by inhibiting hepatic gluconeogenesis via AMPK activation and reducing free fatty acid plasma concentration.

Metformin is the most common first-line medication for Type 2 Diabetes. It works by reducing the amount of sugar your liver makes and improving your body's sensitivity to insulin. Common side effects include stomach discomfort, which often improves over time.

Sedentary behavior interventions do not produce significant changes in fat-free mass, diastolic blood pressure, fasting glucose, HbA1c, LDL cholesterol, or triglycerides.

Do not expect sedentary reduction to significantly change your blood sugar levels (HbA1c, fasting glucose), cholesterol (LDL, Triglycerides), or muscle mass. While these metrics may show slight beneficial trends, the changes are not statistically significant. Focus on the proven benefits like improved blood pressure and insulin sensitivity instead.

Epicardial adipose tissue (EAT) and myocardial steatosis contribute to cardiac dysfunction and atrial fibrillation through lipotoxicity, involving the accumulation of diacylglycerols and ceramides.

Managing overall body fat and metabolic health helps reduce epicardial fat, which may lower the risk of heart rhythm issues and heart failure.

Nonalcoholic fatty liver disease (NAFLD) is a hepatic manifestation of metabolic syndrome and a cardiovascular risk factor, driven by lipotoxicity rather than triglycerides alone.

Treating NAFLD requires addressing the underlying metabolic dysfunction and reducing toxic lipid metabolites, not just lowering liver fat content.

Weight loss interventions do not reduce miscarriage rates in overweight and obese women, despite improving pregnancy rates.

While losing weight can help you get pregnant, it does not appear to lower your risk of miscarriage. Focus on the benefits of improved pregnancy rates and overall health rather than expecting weight loss to prevent pregnancy loss.

Caloric restriction (CR) without malnutrition extends healthspan and lifespan across multiple species by modulating nutrient-sensing pathways such as mTORC1, AMPK, and Sirtuins.

To potentially extend healthspan, reduce your caloric intake by 20-30% below your maintenance level without sacrificing essential nutrients. Focus on nutrient-dense foods to avoid malnutrition while triggering metabolic adaptations like autophagy and improved insulin sensitivity.

Sarcopenia predicts significantly worse long-term overall survival (1, 3, and 5 years) and disease-free survival following abdominal surgery for malignancy.

For cancer patients undergoing abdominal surgery, muscle mass is a key prognostic factor. If your scans show sarcopenia, engage in prehabilitation focusing on resistance training and protein intake to potentially improve your long-term survival and disease-free outcomes.

Nutrients-to-limit reformulation of ultra-processed foods fails to improve health outcomes because it enables mal-substitution of ingredients and legitimizes continued high consumption of ultra-processed products.

Do not rely on 'reformulated' or 'low-fat/low-sugar' labels to judge the healthiness of packaged foods. These products are often still ultra-processed and may contain other harmful additives or substitutes. Focus on consuming minimally processed foods instead of trying to optimize the nutrient profile of industrial products.

Mobility difficulties, pain, depression, and sleep problems are significant mediators explaining the association between chronic conditions/multimorbidity and low physical activity in older adults (≥50 years) in LMICs.

For older adults in LMICs with chronic conditions, simply diagnosing the condition isn't enough to increase physical activity. Healthcare providers must also assess and address mobility difficulties, pain, depression, and sleep problems, as these are the primary barriers preventing activity. Interventions should target these mediators to be effective.

Full PPARγ agonists (thiazolidinediones/TZDs) improve insulin sensitivity and induce white fat browning but cause adverse effects including weight gain, visceral obesity, water retention, and increased cardiovascular/bone fracture risk.

Full PPARγ drugs (TZDs) work for blood sugar but often cause weight gain and other health risks. Doctors may prescribe partial agonists or newer drugs to get the blood sugar benefits without the weight gain.

Phosphorylation of PPARγ at Ser273 selectively activates diabetic gene programs (causing insulin resistance) without affecting adipogenic or osteogenic programs, whereas Ser112 phosphorylation promotes osteogenesis.

This is a molecular mechanism. It explains why some diabetes drugs cause insulin resistance despite lowering blood sugar. Researchers are trying to block this specific phosphorylation to make better drugs.

Non-Hispanic Black and Mexican-American women exhibit significantly lower cardiovascular health (CVH) scores compared to Non-Hispanic White women, with these disparities persisting unchanged from 1999 to 2012.

For Non-Hispanic Black and Mexican-American women, cardiovascular health scores remain significantly lower than those of Non-Hispanic White women. This gap has not closed between 1999 and 2012. Focus on the 7 key metrics: diet, physical activity, smoking, BMI, blood pressure, blood glucose, and cholesterol. Culturally competent prevention strategies are essential to address these persistent gaps.

Dietary phytoestrogens (specifically soy isoflavones) do not significantly alter circulating testosterone, free testosterone, or estradiol levels in healthy adult men, refuting concerns that soy intake causes feminization or hypogonadism.

If you are a healthy man, you can consume soy products without worrying about your testosterone levels dropping or developing feminine traits. Large-scale reviews confirm soy intake does not alter your sex hormone balance.