Apr 6, 2026Nutrition

After 80, Whole-Food Protein Helps—But Often Falls Short

Can whole-food dairy close the protein gap after 80? A small trial shows personalized support helps, but fewer than half reached 1.35 g/kg/day at 16 weeks.

proteinsarcopeniadairy supplementationaging

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Apr 6, 2026Nutrition

Urolithin A in Elite Runners: Recovery Signal, No Performance Proof

Can urolithin A improve elite running performance? The first RCT found recovery signals but no significant gain in VO2max, respiration, or 3000 m time.

urolithin amitophagymitochondrial healthvo2 max

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Mar 31, 2026Nutrition

Personalized Protein May Close the Leucine Gap After 60

Older adults often miss protein and leucine targets at breakfast and dinner. A small RCT improved intake, but strength and mobility benefits remain unproven.

protein distributionleucinemuscle protein synthesissarcopenia

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Mar 29, 2026Nutrition

NMN and Blood Pressure: What 10 RCTs Actually Found

The first NMN blood-pressure meta-analysis found a small drop in diastolic pressure and an older-adult systolic signal. Here is what 349 people tell us.

nmnnad+blood pressureaging

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Mar 29, 2026Longevity Research

Do Sex Hormones Slow Epigenetic Aging? The Best Test Says No

A 1,404-person study tested estradiol, DHEAS, and testosterone-related measures against six epigenetic clocks. The results were inconsistent.

epigenetic clockstestosteronedheasestradiol

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Mar 28, 2026Nutrition

Taurine and Aging: What the Supplement Evidence Really Shows

Taurine declines with age. Animal studies extend lifespan, while human trials improve biomarkers. What the evidence says about taurine supplements today.

taurinelifespan extensionamino acidmitochondrial function

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Mar 28, 2026Sarcopenia

TRX and Sarcopenia: Biomarkers Shift Before Muscle Mass

An 8-week TRX trial changed sarcopenia biomarkers and function but not muscle mass. What the thin evidence says about resistance exercise.

sarcopeniamyostatinfollistatingdf-15

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Mar 28, 2026Physical Activity

Resistance Training, Myostatin, and Sarcopenia: What Changes

Resistance training modestly lowers myostatin in sarcopenic older adults, but not frail adults. What a small biomarker signal can and cannot tell us.

myostatinsarcopeniaresistance trainingmuscle loss

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Mar 28, 2026Nad Metabolism

Exercise Primes NAD+ Recycling, but Muscle NAD+ Is Unproven

Exercise training raises muscle iNAMPT 1.46-fold, but direct proof that it raises muscle NAD+ in humans is still missing. Here's what the evidence says.

nad+inamptexerciseaerobic training

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Mar 27, 2026Nutrition

Selenium, Gait Speed, and Nutrition After Age 80

In adults over 80, selenium intake tracks with faster walking, while low blood selenium predicts undernutrition risk. What the evidence supports—and cannot prove.

seleniumgait speedagingmicronutrient

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Mar 27, 2026Nutrition

NAD+ and Heart Failure: Why SIRT3 May Not Be the Answer

NR and NMN raise blood NAD+ in humans, but cardiac benefits remain unproven—and mouse data challenge the usual SIRT3 explanation.

nad+nmnsirt3heart failure

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Mar 27, 2026Nutrition

Protein for Healthy Aging: Why Diet Quality Still Matters

Protein targets matter after 65, but a six-year cohort study suggests diet quality and resistance training shape whether those grams protect mobility.

protein intakediet qualityfrailtymediterranean diet

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