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Paper Interpretations

Research, Simplified

The numbers, limitations, and practical insights from new studies.

Individual Participant Data Meta-Analysis

Apolipoprotein B vs LDL-C: Which Better Predicts Cardiovascular Risk?

A large-scale meta-analysis of 233,455 participants confirms that apolipoprotein B (ApoB) is a superior predictor of cardiovascular events compared to LDL-C, particularly in patients with metabolic discordance.

2019-10-09Read →
Randomized Controlled Feeding Trial (Crossover)

DASH Diet Lowers Blood Pressure: Landmark NEJM Trial Results

The seminal DASH (Dietary Approaches to Stop Hypertension) trial demonstrated that a diet rich in fruits, vegetables, and low-fat dairy reduces blood pressure as effectively as single-drug therapy, independent of sodium restriction or weight loss.

1997-04-17Read →
Randomized Controlled Trial (Open-label)

Type 2 Diabetes Remission Through Calorie Restriction: The Landmark DiRECT Trial

The DiRECT trial demonstrated that intensive weight management through calorie restriction can achieve remission of type 2 diabetes in nearly half of participants, challenging the conventional view of diabetes as a progressive, irreversible condition.

2018-03-15Read →
Multi-cohort validation + longitudinal mortality analysis

Epigenetic Aging Clock: DNA Methylation Accurately Predicts Biological Age and Mortality

The revolutionary **Horvath epigenetic clock** uses DNA methylation patterns to measure biological age, predicting mortality and age-related diseases more accurately than chronological age. Recent validation studies confirm its utility as a biomarker of aging and intervention target.

2021-09-01Read →
Single-blind Randomized Controlled Trial

Aerobic Exercise Improves Brain Structure: The FIT-HIP Randomized Trial

The FIT-HIP trial demonstrated that 6 months of progressive aerobic exercise increases hippocampal volume by 2%, effectively reversing age-related loss by 1-2 years. Memory function improved significantly, with greater effects in APOE ε4 carriers.

2020-01-15Read →
Systematic Review and Meta-Analysis of Prospective Cohort Studies

Exercise and Cancer Survival: Meta-Analysis Shows 25-40% Mortality Reduction

A comprehensive meta-analysis of 100+ studies demonstrates that regular physical activity after cancer diagnosis is associated with **25-40% reduced cancer-specific mortality** across multiple cancer types, with benefits observed even when exercise begins after diagnosis.

2021-06-01Read →
Randomized Controlled Trial + Metagenomic Analysis

Fermented Fiber Boosts Beneficial Gut Bacteria: Microbiome Precision Medicine

This landmark study demonstrated that specific fermented fibers selectively increase mucin-degrading *Akkermansia muciniphila*, improving gut barrier function and metabolic markers—paving the way for precision microbiome interventions.

2019-10-16Read →
Animal model + in vitro validation + human tissue analysis

Gut-Derived Serotonin: The Hidden Link Between Microbiome and Mood

This foundational study revealed that **>90% of the body's serotonin is produced in the gut** by enterochromaffin cells, not the brain. Gut microbiota directly regulate serotonin production through specific metabolites, fundamentally changing our understanding of mood regulation.

2015-12-01Read →
Comprehensive Review + Meta-analysis

Intermittent Fasting and Metabolic Switching: Cellular Mechanisms Revealed

This foundational review and meta-analysis explains how intermittent fasting triggers the metabolic switch from glucose to ketone metabolism, activating cellular stress resistance pathways and enhancing metabolic health.

2019-12-03Read →
Longitudinal multi-omic study

How Ketogenic Diet Reshapes Gut Microbiome: Latest Multi-Omic Study from bioRxiv

A bioRxiv study reveals how ketogenic diet alters gut microbial metabolites, influencing systemic inflammation and immune response.

2025-12-19Read →
Systematic Review and Meta-Analysis + Continuous Update Project

Lifestyle Factors and Cancer Risk: Comprehensive Analysis from the World Cancer Research Fund

The most comprehensive analysis to date examining lifestyle factors and cancer risk reveals that approximately **30-40% of cancers are preventable** through diet, physical activity, and weight management. Alcohol consumption alone accounts for 4-6% of all cancers globally.

2024-03-15Read →
Mendelian Randomization + Prospective Cohort

Lipoprotein(a) and Cardiovascular Risk: A Causal Genetic Confirmation

This large Mendelian randomization study of 500,000+ individuals provides definitive evidence that elevated lipoprotein(a) [Lp(a)] is a causal, independent risk factor for cardiovascular disease, unaffected by lifestyle factors.

2020-12-01Read →
Randomized Controlled Trial (Single-blind)

Mediterranean Diet Reverses NAFLD: Randomized Controlled Trial Evidence

This landmark RCT demonstrated that a Mediterranean diet rich in extra-virgin olive oil significantly reduces liver fat content and improves metabolic parameters in patients with non-alcoholic fatty liver disease (NAFLD).

2021-06-01Read →
Systematic Review and Meta-Analysis of RCTs

Omega-3 Fatty Acids Reduce Inflammation: AHA Scientific Statement on Clinical Evidence

The American Heart Association's comprehensive review confirms that omega-3 fatty acids (EPA and DHA) significantly reduce systemic inflammatory markers including [hs-CRP](/knowledge-base/lab-tests/hs-crp), TNF-α, and IL-6, with dose-dependent effects and greatest benefits in inflammatory conditions.

2019-10-28Read →
Systematic Review and Meta-Analysis of RCTs

Psychobiotics for Depression: Gut Microbiome Modulation Improves Mood

A systematic review and meta-analysis of RCTs demonstrates that probiotic supplementation (psychobiotics) produces clinically significant reductions in depressive symptoms, with effect sizes comparable to standard antidepressants in mild-moderate depression.

2019-11-01Read →
Animal studies + Phase 1 human trial

Senolytic Drugs: Clearing Senescent Cells Reverses Aspects of Aging

Groundbreaking research demonstrates that the senolytic combination of **dasatinib plus quercetin (D+Q)** selectively eliminates senescent cells, extending healthspan and lifespan in animal models while showing promising results in early human trials for age-related conditions.

2018-08-17Read →
Individual Participant Data Meta-Analysis

Vitamin D Supplementation Reduces Acute Respiratory Infections: Meta-Analysis Evidence

A comprehensive meta-analysis of 25 randomized controlled trials involving 11,321 participants provides the strongest evidence yet that vitamin D supplementation safely reduces the risk of acute respiratory infections, with protective effects strongest in those with baseline deficiency.

2017-02-15Read →