Protein Intake & Muscle Preservation Calculator
GLP-1 and dieting both risk muscle loss — protein is the lever.
GLP-1 medication expansion is the top-ranked health and nutrition trend for 2026, and the broader conversation has shifted specifically toward muscle preservation, since GLP-1's appetite suppression and rapid weight loss carry a documented risk of losing lean muscle mass along with fat unless protein intake is deliberately increased. This calculator sets a protein target adjusted for your specific context — general maintenance, a caloric deficit, GLP-1 medication use, or active muscle building — with additional adjustments for age (anabolic resistance increases past 60) and activity level.
- →Sets a distinct, higher protein target specifically for GLP-1 medication use, given documented muscle-loss risk
- →Adjusts for age-related anabolic resistance (higher target past 60) and activity level
- →Breaks the daily target into a practical per-meal amount across 4 meals
- →Grounded in commonly-cited sports nutrition research ranges (0.8-2.2g/kg depending on context)
- →Watermarked by Cikal Studio Labs · Works on any device, no install required
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