Popeye was right about spinach: dark green, leafy vegetables are the healthiest food on the planet. As whole foods go, they offer the most nutrition per calorie.

Studies on cherries, raspberries and strawberries suggest that most of their nutrition is retained when they're frozen, so it's a good idea to keep some in the freezer.

Berries are the healthiest fruit, offering potential protection against cancer and heart disease, boosting the immune system and acting as a guard for the liver and brain.

Michael Greger Quotes