6. Tomatoes & Olive Oil or Avocado
Lycopene, the antioxidant in tomatoes that is essential to healthy bodies, is fat-soluble, so a healthy fat such as avocado helps you absorb it. Take advantage of the summer glut of tomatoes and add olive oil and a little fresh basil for a great summer salad.

7. Spinach with a Small Amount of Oil
This combo helps vitamin A and K absorption, and adding a bit of lemon juice also helps iron absorption. Serve a fresh spinach salad with broiled salmon or grilled chicken.

8. Don’t Combine Different Types of Proteins
For example, don’t combine eggs and meat or fish and eggs or cheese, as they take different amounts of time to digest.