Red onions, also known as purple onions, are distinct from other types of onions such as Vidalias due to their deep, dark color. Unlike other types of onion, red onions are often consumed raw, with slices of raw onion a popular topping for sandwiches or hamburgers.

Strawberries are a common type of fruit that can be eaten as a nutritious and refreshing treat on hot days or used as a topping for desserts such as ice cream and cake. Strawberries offer numerous nutritional benefits, such as supplying essential vitamins and minerals, but they aren't ideal for all diets.

If you experience chronic indigestion, you may want to remove black pepper from your diet to prevent symptoms from developing. According the National Digestive Diseases Information Clearinghouse, spices, such as black pepper, chili pepper and curry can increase your chances of developing indigestion.

Red bell peppers are versatile ingredients that appear in many recipes, including fajitas, soups, salads and stews. They are part of the vegetable food group, which means that they contain carbohydrates. Red bell peppers are in season in the summer, but they are usually available year-round at many supermarkets.

Eating both fresh and dried fruits can help promote regular bowel movements. However, since dried fruits typically contain more fiber than fresh fruits do, you might consider eating more dried fruit if you are suffering from constipation.

The nutrient content of a banana changes as the banana becomes more ripe. However, the nutrient change isn't necessarily bad. Regardless of how ripe or unripe a fruit is, you still gain numerous benefits from it. For example, an overripe banana is packed with antioxidants.

Collard greens are generally considered a healthy food due to their high content of dietary fiber and vitamin C. As part of the cabbage family, collard greens are also a low-calorie food. However, the high fiber content of collard greens can lead to bloating, particularly if you have a sensitive stomach.

African mango, or Irvingia gabonensis, is indigenous to tropical rain forests of Guinea and while the flesh of the fruit has nutritional value, it is the pit, or the dikanut, that has been extensively studied for its medicinal properties.

Blueberries can be a refreshing, nutrient-rich snack, but they aren't ideal in all cases. In some situations -- such as hiking or camping, where refrigerators aren't accessible -- you may find that dried blueberries are more appropriate.

Not only do bell peppers pack more nutrients per calorie than practically any other food, but these crisp, sweet vegetables are as versatile as they are nutritious. While it doesn’t take much effort to incorporate bell peppers into your diet, how you choose to prepare them can affect their nutritional value.

Strawberries contain five different acids: citric acid, ascorbic acid, malic acid, ellagic acid and pantothenic acid. The total amount of each acid varies based on the variety of strawberry, how it is stored and the storage period. The U.S.

Brussels sprouts resemble a miniature head of cabbage for a good reason -- they come from the same plant family. Along with Brussels sprouts and cabbage, the cruciferous, or Brassica, family includes broccoli, kale, cauliflower, collard greens, turnips, mustard and bok choy.