5. Lemons
Citrus fruits in general are good as a source of vitamin C and we’ve already seen oranges on this list! Lemons too will get the job done, though not everyone is going to want to bite down hard on this very bitter and sour food!
A good way to get over some of the bitterness is to try sprinkling just a small bit of sugar on top of your lemons. You can also use lemons as an ingredient in other food and heck… even make sorbet or lemon drizzle cake! These might not be ‘health foods’ as such, but they do the job…