2. Pineapple
Pineapples, whether eaten or drank in juice form, is an important source of vitamins and antioxidants. It has also been used to treat various ailments such as inflammations and digestive problems. It is also almost synonymous to dietary fiber; ask anyone what to eat to get enough fiber in your diet, and they are more than likely to say pineapple. In juice form, pineapple can give as much as 2.5 mg of manganese per cup, and a half-cup of raw diced pineapple can give 1.28 mg.
3. Instant Oatmeal
Among oatmeals, instant oatmeal is usually the black sheep. It has been accused of having significantly lower nutrients than regular oats, being too sugary, and containing other unnecessary ingredients like sodium. While the last two may be true, the first accusation is not – it has just as much nutrition as its more traditional brethren. If you don’t mind the sugar, instant oatmeal is a rich source of manganese, with 1.20 mg per packet. If you need a quick breakfast and don’t have time to prepare oatmeal the traditional way, instant oatmeal isn’t a bad choice at all.