Egg yolks are one of the few foods that naturally contain Vitamin D

Despite having only 33 calories, Kale contains 684% of vitamin K, 134% of vitamin C, 206% of Vitamin A

Canned white tuna has about three times more mercury than chunk light tuna

Butter and margarine have about the same amount of calories

Pound-for-pound, strawberries have roughly the same amount of Vitamin C as oranges.  Six strawberries will provide nearly 100% of the RDA of Vitamin C for the average adult

Avocados have the highest protein content of all fruit