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Eat for Longevity: Protein, Muscle, and Healthspan

Evidence-based guides by the Proteo Nutrition Team · Updated August 2026

Longevity nutrition rests on three pillars backed by decades of research: adequate protein (1.0–1.6 g/kg/day) to preserve the muscle that predicts lifespan, a Mediterranean-style plate of whole foods, and minimal ultra-processed food. These guides cover the evidence and how to apply it — and Proteo turns it into a daily habit with one photo per meal.
Protein & Aging

How Much Protein Do You Need for Longevity?

Most adults over 40 need 1.0–1.6 g of protein per kg daily to protect muscle and healthspan — more than the 0.8 g/kg RDA. The evidence.

Muscle & Mortality

Muscle Mass and Lifespan: What the Research Actually Shows

Higher muscle mass and grip strength are among the strongest predictors of longevity — the reason to track protein first, not just calories. The evidence.

Sarcopenia

Sarcopenia: How to Prevent Age-Related Muscle Loss With Diet

A protein-first eating plan to prevent sarcopenia: daily protein targets, leucine thresholds, meal distribution, and the foods that protect aging muscle.

Meal Strategy

Protein Timing for Longevity: Why Distribution Beats Dinner-Loading

Spreading 25–40 g of protein across 3–4 meals builds more muscle than dinner-loading — a pattern calorie totals never reveal. The evidence.

Eating Pattern

The Mediterranean Diet and Longevity: Why the Plate Model Works

The Mediterranean diet is the most evidence-backed eating pattern for longevity. The key studies and the plate model behind Proteo's Plate Score.

Food Quality

Ultra-Processed Foods and Longevity: What the Evidence Shows

Ultra-processed food intake is linked to higher all-cause mortality — food quality matters beyond calories. How UPFs are classified and how to cut back.

Protein Quality

Protein Quality for Healthy Aging: Leucine, Completeness, and Source

Not all protein grams are equal for aging muscle — quality matters as much as quantity. How leucine, completeness, and food source decide it after 40.

Food Guide

The 10 Best High-Protein Foods for Longevity, Ranked

The best protein-first foods for longevity: fish, Greek yogurt, legumes, eggs, soy and more — ranked with protein counts, quality scores, and the science.

Photo Tracking

AI Protein Tracker From a Photo: What a Meal Scan Can Tell You

An AI protein tracker can estimate protein from a meal photo in seconds. Learn what the camera can see, where ranges help, and when to add context.

Protein Tracking

How to Track Protein Without Counting Every Calorie

Track protein without calorie micromanagement: set a daily target, check each meal, watch distribution, and use food-quality context to guide choices.

Plate Score

What Is a Plate Score? Protein and Food Quality in One View

Proteo's Plate Score adds food-quality context to a protein estimate. See what it considers, what can change the score, and what the number cannot prove.

Protein-first tracking built for longevity — not just counting calories

Calories tell you how much. Proteo helps you see whether you are eating enough of the right things: protein for muscle, food quality for healthspan, and a Plate Score for each meal. See current Proteo+ pricing and availability in Google Play.

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