Muscle Building for Skinny Guys (Hardgainer Guide)
Written by Tanveer Quraishi · Fact-checked against NIH and peer-reviewed research · Last verified: August 2026 Quick Answer How does a skinny guy build muscle? Eat 300–500 calories above maintenance every day — tracked, not guessed — with 0.7–1 g of protein per pound of body weight. Train three or four days a week on…
