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  1. Protein - Wikipedia

  2. High Protein Foods: 16 Foods for High Protein Meals - Healthline

  3. Protein - Nutrition, digestion and excretion - KS3 Biology - BBC

  4. Protein: What It Is, Types, Uses, Needs, Deficiency - Verywell Health

  5. Protein | Definition, Structure, & Classification | Britannica

  6. Nutrition information about protein and plant-based protein

  7. Protein | The Nutrition Source - Harvard T.H. Chan School of …

  8. Here’s What Protein Does: 5 Functions and Examples - Verywell …

  9. 9 Important Functions of Protein in Your Body - Healthline

  10. High-protein foods: The best protein sources to include in a …