Thanks a lot, Claire. Just to add that some can be covered by nutrition as well. Below some non-exhaustive examples:
 
Reservatrol: ex. red grape juice or wine :-), peanuts, blackberries
Selenium: ex. eggs, nuts, oat flakes, broccoli, sunflower seed, chia seed
Vit. B: ex: yeast containing products, nettels, beer 
Omega 3: fish, linseed + linseed öil,  chia seed
Zinc: fish, oysters, 
I then heard: 
- creatin: fish and meat
and cicatrin but which puzzles me as it is rather to fight infection....so better to wait for clarification, indeed.