Browse the evidence

Supplementation with 3g/day of HMB (calcium or free acid) does not significantly enhance fat-free mass or strength gains in young adults undergoing resistance exercise training compared to placebo.

If you are a young adult (under 45) doing resistance training, taking 3g of HMB daily will not give you more muscle or strength than training alone. Save your money.

There is a significant disconnect between mechanistic research (e.g., mTOR signaling) and applied intervention studies, leading to a lack of systematic translation of basic science into concrete intervention strategies.

Current research often fails to bridge the gap between molecular science and practical advice. For now, focus on the proven basics: consistent resistance training and adequate protein intake, rather than trying to optimize based on complex molecular mechanisms that haven't been fully translated into practical protocols.

Commercial direct-to-consumer (DTC) genetic tests for personalized nutrition often lack scientific backing, provide insufficient result descriptions, and draw inferences that are not supported by robust evidence, particularly when based on single gene variants.

Be skeptical of DTC genetic nutrition tests. They are largely unregulated and often base advice on single genes, ignoring the complex polygenic nature of health. The paper states these tests often lack scientific backing. Use them for curiosity, not as a substitute for evidence-based dietary guidelines.

There is currently insufficient evidence to determine the specific impact of obesity on central blood pressure and its modification after bariatric surgery, as no studies have evaluated 24-hour central BP changes at medium or long term post-surgery.

While bariatric surgery lowers peripheral blood pressure, we do not yet know how it affects central (aortic) blood pressure over the long term. Future research is needed to understand if central BP improves as much as peripheral BP after surgery.

Particulate matter air pollution is the leading contributor to global disease burden, accounting for 8.0% of total DALYs in 2021.

Air pollution is the leading risk factor for global disease burden. Reducing exposure is crucial for long-term health.

Cellular senescence is a principle causative factor in organismal aging and facilitates aging-associated diseases.

This mechanism explains why aging tissues accumulate damage. Interventions targeting senescent cells (senolytics) are being researched to mitigate age-related diseases, though specific protocols are not detailed in this text.

Senescent cells secrete pro-inflammatory factors (SASP) that drive further senescence in neighboring cells and impair immune function, creating a self-perpetuating cycle of tissue damage.

The accumulation of senescent cells contributes to tissue aging. While senolytics (drugs that clear senescent cells) are in development, current practical steps involve supporting the body's natural clearance mechanisms through healthy lifestyle habits that reduce cellular stress.

Gut microbiota transplantation from high-cholesterol diet-fed mice to germ-free mice is sufficient to induce hepatic lipid accumulation, inflammation, and cell proliferation, demonstrating a causal role for microbiota in NAFLD-HCC.

Your gut bacteria are not just passengers; they can drive liver disease. If your diet has altered your gut bacteria to favor harmful types, those bacteria can directly cause liver inflammation and fat accumulation, even if you change your diet later.

Without immediate and effective intervention, the global prevalence of adult overweight and obesity will continue to increase, reaching 3.80 billion adults by 2050.

The current trajectory of global obesity is unsustainable and will affect over half the adult population by 2050. Individuals and policymakers must move beyond simple awareness and implement aggressive, targeted interventions tailored to local contexts to prevent this crisis.

There is no clinical evidence from Randomized Controlled Trials (RCTs) for the gastrointestinal health effects of kombucha, miso, kimchi, or tempeh in humans.

Be cautious with claims about kombucha, kimchi, miso, and tempeh curing gut diseases. While they are healthy foods with interesting properties, there are no human clinical trials proving they treat gastrointestinal disorders. Enjoy them as part of a balanced diet, but don't rely on them as medicine yet.

Accelerated brain aging, specifically measured by a cognition-optimized plasma proteomic model (CognitionBrain), predicts Alzheimer's disease progression and cognitive decline independently of and as strongly as the current best blood biomarker, pTau-181.

For those concerned about Alzheimer's, this research suggests that a new blood test measuring brain-specific aging (CognitionBrain) is just as powerful as the current gold standard (pTau-181) and provides additional, independent information. Using both together offers the best prediction of cognitive decline. This highlights the importance of early, multi-faceted biomarker screening for those with family history or risk factors, rather than relying on a single test.

Using recovery biomarkers (such as doubly labeled water and urinary nitrogen) is the most effective method to validate self-reported dietary intake and quantify measurement error.

For accurate dietary assessment in research, use recovery biomarkers like doubly labeled water or urinary nitrogen to validate self-reported data.

A metabolic biomarker score derived from 14 circulating metabolites (including lipids, amino acids, and inflammatory markers) provides significantly better prediction of 5- and 10-year all-cause mortality than conventional clinical risk factors across all adult ages.

Standard blood tests (cholesterol, blood pressure) are not enough to accurately predict your risk of dying in the next 5-10 years, especially as you age. A specialized metabolic blood test (NMR metabolomics) that looks at 14 specific markers (lipids, amino acids, inflammation) provides a much more accurate risk score. This tool is currently best used by clinicians to make high-stakes decisions, such as determining if an elderly patient is too frail for surgery, rather than for self-management.

Positive airway pressure (PAP) therapy, including CPAP and ASV, does not reduce the risk of major adverse cardiovascular events (ACS, stroke, vascular death) or all-cause mortality in adults with sleep apnea compared to no treatment or sham.

If you have sleep apnea, use PAP to improve your sleep quality and daytime alertness, as it does provide symptomatic relief. However, do not rely on PAP alone to protect your heart or prevent death. You must still follow standard cardiovascular prevention guidelines, such as managing blood pressure, cholesterol, and using antiplatelet therapy if indicated.

Skeletal muscle contains a novel FBN1+ fibro-adipogenic progenitor (FAP) subtype in humans, which is also present in mice and may contribute to heterotopic ossification.

This is a basic science finding. The FBN1+ FAP subtype may play a role in bone formation within muscle (heterotopic ossification) after injury.

GrimAge version 2 (GrimAge2), an epigenetic clock based on DNA methylation, is a superior predictor of all-cause mortality and age-related morbidity compared to the original GrimAge and other epigenetic clocks.

GrimAge2 is a blood test that measures your biological age based on DNA methylation patterns. It is a more accurate predictor of your risk for death and age-related diseases (like heart disease and diabetes) than your actual age or other aging clocks. While you cannot change your chronological age, your biological age can be influenced by lifestyle factors such as smoking, diet, and physical activity. Monitoring this metric can provide early warning signs of health decline, allowing for proactive lifestyle interventions.

There is no significant sex difference in the relative risk of cancer mortality associated with diabetes; the risk increase is comparable for both men and women.

While diabetes increases your risk of cancer, this relative increase is similar for both men and women. Focus on standard cancer screening and healthy lifestyle habits rather than worrying about a sex-specific cancer risk amplification from diabetes.

Self-reported sleep quality is NOT associated with neural health (white matter integrity) in healthy adults, despite associations in clinical populations.

Don't panic about occasional poor sleep causing permanent brain damage. This study found no link between self-reported sleep quality and white matter integrity in healthy adults. While clinical sleep disorders are serious, healthy sleep variations do not appear to harm brain structure.

DNA methylation patterns (epigenetic clocks) are among the best-studied and most accurate molecular biomarkers for predicting chronological age.

DNA methylation tests (epigenetic clocks) are currently the most reliable molecular tool for estimating your biological age, with some tests achieving an error margin of less than 5 years.

Long-term exercise training does not significantly reduce the risk of mortality or hospitalization in older adults.

For older adults, engaging in moderate-intensity multicomponent exercise 2-3 times per week for at least a year does not significantly reduce the risk of mortality or hospitalization. However, it does significantly reduce the risk of falls.

Multi-omics approaches (proteomics, transcriptomics) are necessary to accurately measure and understand the complexity of inflammaging, as single biomarkers like IL-6 or TNF-α are insufficient.

Current single-marker tests for inflammation are limited. Multi-omics approaches offer a more comprehensive view of inflammaging, which may lead to better diagnostics and targeted therapies in the future.

Resistance training increases skeletal muscle mass, strength, and physical function in healthy adults compared to no exercise.

If you are a healthy adult, engaging in resistance training is one of the most effective ways to increase muscle mass, strength, and physical function. You do not need a specific complex protocol to see benefits; simply performing resistance exercises against external resistance yields significant improvements compared to doing nothing.

Combining low-carbohydrate intake (26% of calories) with calorie restriction (1200-1500 kcal) yields the greatest reduction in BMI, body weight, waist circumference, and body fat compared to either intervention alone.

For the fastest and most comprehensive weight loss, combine a low-carbohydrate diet (26% of calories from carbs) with a moderate calorie restriction (1200-1500 kcal/day). This dual approach was shown to reduce BMI, body weight, waist circumference, and body fat more effectively than either strategy used alone. This is the most potent dietary intervention for overweight/obese individuals in this study.

In Thai adults with obesity and metabolic syndrome, a 12-week lifestyle education intervention combined with partial meal replacement (two meals daily) produces significantly greater weight loss and glycemic improvement than lifestyle education alone.

If you have obesity and metabolic syndrome, replacing two of your daily meals with a high-protein meal replacement shake, while also receiving basic lifestyle education on diet and exercise, will help you lose more weight and improve your blood sugar levels compared to just receiving lifestyle education alone. However, be aware that this benefit is most pronounced during the 12-week intervention period, and long-term maintenance requires ongoing support or continued use of the strategy.