Guide

For quick and sustained energy, carbohydrate sources lead, while protein supports structure, recovery, and only fills energy gaps when carbs run low.

For gaining weight, calories create the surplus; protein steers that gain toward muscle—pair a 10–20% surplus with ~1.6–2.2 g/kg protein.

Yes, canned sardines are a protein-dense choice—about 24–25 g per 100 g—plus omega-3s, calcium, and vitamin D.

No, including carbohydrates in a protein shake isn’t harmful; match the carbs to your training and daily targets.

Yes, most carbohydrate foods move through the stomach faster than protein foods, though fiber, fat, and texture can change the pace.

At equal calories, protein-focused meals usually keep you fuller longer than carb-heavy meals; fiber-rich carbs can come close.

For carbs vs protein, priority shifts by goal: carbs fuel work; protein builds and repairs.

No, protein foods tend to keep you fuller per calorie than most carbohydrate foods.

No, protein drives muscle building, while carbohydrates fuel training and help recovery.

No—fat gain comes from surplus calories; carbs and protein have 4 kcal per gram, but protein burns more during digestion and helps you feel full.