Model: Young C57BL/6J mice fed a high protein (56% of daily calories) diet for 20 weeks 
Dosage: Injection with either 400 mg/kg of NMN or 20 mg/kg of 78c for 4 weeks

High protein intake improves the body composition of aged mice, but it lowers NAD+ (nicotinamide adenine dinucleotide) levels and promotes metabolic aging. 

Metabolism

New Study Shows Cranberry Extract Equivalent to Metformin in Fighting Aging

Fayoum University researchers found that cranberry polyphenols improve metabolic markers, cognition, and oxidative stress to the same degree as the drug metformin.

A new study suggests cranberry extract has effects against aging that rival metformin.

Aging &amp; Longevity

How to Support Muscle Function with Age: Top Evidence-Based Supplements

Data suggest certain supplements, such as L-carnitine, vitamin D, and essential minerals, support muscle function and physical performance in adults of advanced age.

Researchers from University College London review data supporting that supplements, like vitamin D, L-carnitine, and essential minerals, support muscle function during aging.

Skin &amp; Muscle

Participants: Adults over the age of 60
Dosage: 3,750 mg of niacin twice daily (after gradual dose increase), 150 mg of dihydroberberine twice daily, 50 mg of taxifolin (with 500 mg of vitamin C and 15 mg of zinc) twice daily, 50 mg of tocotrienols twice daily

A combination of supplements, including the NAD+ precursor nicotinic acid, improves cholesterol, allowing some participants to cease taking statins.  

Study conducted by Professor Emeritus Joseph Keenan, MD, at the University of Minnesota. 

Nicotinic Acid

Peter Attia’s 2025 Performance Principles for Longevity: 60 Minutes 

On 60 Minutes, Peter Attia reveals how performance, prevention, and emotional resilience contribute to aging well. 

Search Result: Women

High Protein Intake Promotes Aging by Lowering NAD+ Levels

New Study Shows Cranberry Extract Equivalent to Metformin in Fighting Aging

How to Support Muscle Function with Age: Top Evidence-Based Supplements

NAD+ Boosting Supplement Challenges Cholesterol-Lowering Statins in Anti-Aging Research

Peter Attia’s 2025 Performance Principles for Longevity: 60 Minutes