| Answer | Crossword Clue |
|---|---|
| KERATIN | A fibrous protein |
| KERATIN | Fibrous protein |
| PEEL | Fibrous part of a potato |
| KIWI | Fruit with a fibrous skin |
| LOOFA | Sponge made from a fibrous fruit |
| ACTH | A protein, for short |
| RNA | A producer of protein |
| SWEDISHMEATBALL | Protein for a Stockholmer |
| BEANS | Protein source for a vegan |
| SOY | Protein derived from a bean |
| RAWEGGS | Ingredients in a protein shake |
| CAPSID | Protein shell of a virus |
| SOY | Protein source in a vegan diet |
| SOYA | Protein-rich bean, to a Brit |
| OKRA | Vegetable that's a good source of protein |
| RHESUS | Monkey that gave its name to a blood protein |
