Words / B2

PROHT-een/ˈprəʊtiːn/

Protein is a substance in food such as meat, eggs, and beans that the body needs to grow and repair: a protein source; protein in the diet. Nutrient is the wider class (already in the dictionary); vitamin is a different nutrient. Name the protein in the diet table. Mix-up: protest; proton (physics). Do not write protein for “a healthy meal” as a whole.

Meaning

A substance in food such as meat, eggs, and beans that the body needs to grow and repair.

Examples

• “Name the protein in the diet table, not a smoothie brand.”
• “Enzyme action depends on protein shape, which is the biology sense.”

Good to know

a protein; protein intake / source; high-protein. Wider: nutrient. Trap: proton / a whole meal. Biology and food tech. A named nutrient, not a brand.

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