Protein Restriction and Longevity: Can Limiting Protein Intake Support Healthy Aging?

University of Wisconsin researchers examine how reducing dietary protein intake may reshape nutrient sensing, metabolism, mitochondrial function, and other pathways linked to healthier aging.

(One of the leading authors on the Cell Press Blue article, Dr. Dudley Lamming | University of Wisconsin)

Researchers examine how restricting protein intake can improve metabolic health and influence aging-related pathways to extend healthspan and lifespan.

Aging &amp; Longevity

Model: 20-month-old female C57BL/J mice 
Dosage: 10 nmol/kg/day of semaglutide

Semaglutide extends mouse lifespan and targets signs of aging, such as diminished NAD+, while mimicking the anti-aging effects of caloric restriction (consuming fewer calories). 


The study was led by Dr. Danica Chen (image: berkeley.edu). 

Model: C57BL/6J mice 
Dosage: Eating only within an 8-hour window and fasting for 16 hours (~20% caloric deficit may be required)

Restricting food intake for 16 hours a day improves the health of female mice and moderately prolongs the life of male mice. 

The principal investigators of the study (from left to right): Dr. Carla Green, Dr. Victoria Acosta-Rodriguez, and Dr. Joseph Takahashi (image: dallasnews.com). 

NAD+ Ranked #2 Most Powerful Anti-Aging Agent

Based on current scientific evidence, Dutch researchers have ranked existing anti-aging interventions based on how likely they are to protect against DNA damage and aging. 


On the far right, one of the researchers, Dr. Jan H.J. Hoeijmakers (image: amazinggerasmusmc.nl). 

DNA Repair

Participants: Healthy middle-aged to older adults (average age: ~53 years)
Dosage: 1,000 mg/day of urolithin A for 28 days

Supplementing healthy adults with urolithin A —a compound produced by our gut bacteria— counters signs of age-related immune system decline.  

Principal investigator Dr. Florian R. Greten (image: hessen-schafft-wissen.de).

Search Result: caloric restriction

Protein Restriction and Longevity: Can Limiting Protein Intake Support Healthy Aging?

Semaglutide (Ozempic) Prolongs Lifespan & Boosts NAD+ in Mice, New Study Shows

16-Hour Intermittent Fasting Improves Health and Longevity, New Study Confirms

NAD+ Ranked #2 Most Powerful Way to Reverse DNA Damage & Aging

Urolithin Supplement Counters Immune System Aging, New Human Trial Shows