Browse the evidence

Fecal Microbiota Transplantation (FMT) restores gut homeostasis and achieves higher recovery rates (90-94%) for Clostridium difficile infection (CDI) compared to standard antibiotic therapy (vancomycin, 60% recovery) by re-establishing colonization resistance via secondary bile acid production.

If you suffer from recurrent C. difficile infection, ask your doctor about Fecal Microbiota Transplantation (FMT). Clinical data shows it restores gut diversity and achieves higher recovery rates (up to 94%) compared to standard antibiotics like vancomycin (60%). It works by reintroducing healthy bacteria that produce secondary bile acids to inhibit C. difficile growth.

Higher educational attainment (Years of Schooling) causally protects against Alzheimer's disease.

Education and lifelong learning contribute to protection against Alzheimer's disease. While you cannot change your past education, engaging in cognitively stimulating activities and continuous learning may help build cognitive reserve.

COPD represents an accelerated aging of the lung, characterized by shared mechanisms such as telomere shortening, cellular senescence, and impaired autophagy.

Understanding COPD as accelerated lung aging may open avenues for therapies targeting aging mechanisms (like senolytics or autophagy enhancers) in addition to standard smoking cessation and bronchodilators.

Exercise does not improve the Ankle-Brachial Index (ABI) in patients with intermittent claudication.

Do not expect your Ankle-Brachial Index (a blood pressure ratio) to change significantly with exercise. This test measures arterial blockage, which exercise does not fix. However, your ability to walk will still improve significantly despite the unchanged test score.

Maternal consumption of a high-fat diet during gestation and lactation causes hypothalamic inflammation and altered neural projections in offspring, predisposing them to obesity and metabolic disorders.

For expectant mothers, avoiding high-fat diets during pregnancy and breastfeeding may help prevent metabolic programming issues in the child, such as altered brain circuits that regulate hunger.

Intermittent administration of senolytic drugs (Dasatinib + Quercetin) or genetic clearance of senescent cells alleviates obesity-induced metabolic dysfunction, including insulin resistance and glucose intolerance, in obese mice.

This research suggests that targeting senescent cells (cells that have stopped dividing and secrete inflammatory factors) using specific drug combinations (like Dasatinib and Quercetin) or genetic methods can improve metabolic health in obesity. While not yet a standard human treatment, it highlights senolytics as a potential future therapy for obesity-related diabetes and inflammation.

By 2030, approximately 50% of US adults are projected to be obese, and 78% will be overweight or obese, with significant disparities across racial and ethnic groups.

Prepare for a future where half of adults are obese and nearly 80% are overweight. This is not a distant threat but a current trajectory. Focus on culturally-tailored, sustainable interventions to mitigate personal risk and contribute to broader public health efforts.

Reduced sensitivity to light due to lens yellowing and reduced SCN neuronal coupling contributes to the desynchronization of peripheral clocks and weakened circadian output in older adults.

Your eyes let in less blue light as you age, weakening your body's time signal. Maximizing morning outdoor light exposure can help compensate for this reduced sensitivity and strengthen your circadian rhythm.

Diet and physical activity based interventions during pregnancy do not significantly reduce the risk of composite maternal or offspring outcomes, nor individual outcomes like gestational diabetes, hypertensive disorders, or preterm delivery in IPD meta-analysis.

While lifestyle interventions may not significantly reduce the risk of all maternal and offspring complications combined, they do reduce weight gain and caesarean section risk. Focus on these proven benefits.

Increasing the training sample size of DNA methylation-based epigenetic clocks improves prediction accuracy of chronological age, which attenuates the association between age acceleration residuals (AAR) and mortality, suggesting previous associations were confounded by cellular composition.

Current 'epigenetic clocks' (like Horvath or Hannum) that claim to measure 'biological age' and predict mortality may be flawed because they are confounded by blood cell counts. Using larger, more precise datasets to build these clocks removes the mortality prediction, suggesting these clocks measure chronological time accurately but do not necessarily predict healthspan or lifespan. Do not rely on standard AAR metrics for mortality risk assessment without adjusting for cellular composition.

Circulating levels of soluble CD36 (sCD36) are abnormally elevated in NAFLD patients and positively correlate with the histological grade of hepatic steatosis, suggesting its utility as a biomarker.

Soluble CD36 levels in the blood may serve as a biomarker to assess the severity of fatty liver disease. This is a diagnostic tool rather than a treatment target for patients at this stage.

MCP-1/CCR2 and RANTES/CCR5 chemokine signaling pathways are critical for macrophage recruitment and the progression of hepatic steatosis to NASH.

Chemokines like MCP-1 and RANTES recruit inflammatory immune cells to the liver, worsening NAFLD. Blocking these pathways (currently experimental) or reducing their expression through diet/lifestyle may help mitigate liver inflammation.

In Type 1 Diabetes (T1D), functional impairment of beta cells occurs early in the prediabetic phase, whereas a substantial decrease in beta cell mass occurs late, close to clinical manifestation.

For T1D, preserving existing beta cell function early is as critical as replacing mass later. Treatments aiming to restore function (like those inducing the 'honeymoon phase') may be more effective if applied early, before massive cell death occurs.

Surgical removal of adipose tissue and specific genetic modifications (e.g., deletion of diacylglycerol acyltransferase 1) extend lifespan in rodents.

In rodents, removing fat or modifying specific fat-synthesis genes extends life. This highlights the critical role of adipose tissue in aging. For humans, this suggests that managing body fat levels is crucial for healthspan, though surgical removal is not a viable longevity strategy.

Exposure to Endocrine-Disrupting Chemicals (EDCs) such as Bisphenol A (BPA) and Diethylstilbestrol (DES) during fetal development can cause transgenerational epigenetic changes leading to increased risks of cancer, obesity, and reproductive disorders in offspring and subsequent generations.

Minimize exposure to endocrine disruptors like BPA (found in some plastics) and DES-like compounds. Use glass or stainless steel containers for food storage, avoid heating food in plastic, and choose fresh foods over canned when possible to reduce intake of these chemicals, especially during pregnancy.

Specific gut bacteria extend host lifespan by interacting with host nutrient signaling pathways (IIS and mTOR), and this extension is lost if these pathways are disabled.

Some gut bacteria can extend lifespan by interacting with your body's nutrient-sensing pathways (like IIS and mTOR). However, this benefit is not universal; it requires your specific host pathways to be functional. Maintaining these pathways through balanced nutrition is key to leveraging potential microbiome benefits.

DPP-IV inhibitors (e.g., sitagliptin) lack strong clinical evidence for improving NAFLD/NASH histology and may be ineffective in controlled trials, despite promising animal model data.

Do not rely on DPP-IV inhibitors (like sitagliptin) to treat your liver disease. While they help with blood sugar, controlled studies show they do not significantly improve liver fat or inflammation in NAFLD/NASH patients.

Pharmacological inhibition of mTOR via rapamycin extends lifespan across multiple model organisms, including yeast, nematodes, fruit flies, and mice.

This paper establishes that inhibiting the mTOR pathway, specifically via rapamycin, extends lifespan in various animals. While this is a key finding in longevity research, the paper notes that translating this to humans requires understanding the complex interplay with nutrient sensing and potential side effects, as rapamycin is an immunosuppressant.

In utero exposure to famine or severe nutritional restriction increases the adult risk of hypertension, type 2 diabetes, and obesity, with risk magnitude dependent on the specific gestational timing of exposure.

If you were born to a mother who experienced severe food scarcity, your body may be biologically primed to store fat and regulate blood sugar differently than average. This is not a character flaw. Focus on consistent, moderate nutritional quality and regular physical activity to support your metabolic health, rather than extreme restrictive diets which may trigger further metabolic adaptation.

Non-coding RNAs (miRNAs, lncRNAs, circRNAs) regulate gene expression in metabolic diseases and serve as diagnostic/prognostic biomarkers and potential therapeutic targets.

Research into non-coding RNAs is leading to new diagnostic tools and potential drugs that can silence or enhance specific genes involved in metabolism, offering hope for treating conditions like obesity and diabetes.

Innate and adaptive immune cells (Kupffer cells, monocytes, neutrophils, T cells) are central drivers of NASH inflammation and fibrosis, with specific pathways like NLRP3 inflammasome activation and CCL2/CCR2 monocyte recruitment being critical for disease progression.

NASH involves active inflammation driven by immune cells, not just fat accumulation. Targeting immune pathways (like CCL2/CCR2 or NLRP3) is a key area of research for treating NASH.

Adipocyte-derived fatty acids, released via lipolysis (ATGL/HSL), are taken up by breast cancer cells and drive proliferation and migration through increased fatty acid oxidation (CPT1A) and electron transport chain activity.

This research suggests that in obesity, fat cells release fatty acids that fuel breast cancer growth. While this is an in vitro finding, it implies that metabolic factors linked to obesity (like high fatty acid availability) may promote cancer progression. It does not currently translate to a specific dietary intervention for patients, but highlights the importance of metabolic health in cancer risk.

Administration of insulin-sensitivity-associated bacteria, specifically Alistipes indistinctus, ameliorates insulin resistance and improves glucose tolerance in high-fat diet-fed mice by reducing caecal monosaccharide levels.

Specific gut bacteria, such as Alistipes indistinctus, can help break down harmful sugars in the gut, potentially improving insulin sensitivity. This suggests that targeting specific bacterial strains could be a therapeutic strategy for metabolic health.

Administration of probiotics to critically ill patients with multiorgan failure or severe immunocompromise can increase bacterial translocation and cause sepsis, making it unsafe as a standard practice.

If you are critically ill, have multiorgan failure, or are in the ICU, do not take probiotics unless explicitly prescribed by your medical team. In these cases, probiotics can cause sepsis and death. Standard practice suggests avoiding them.