Again, this particular vitamin helps convert food into energy, as well as helping to ensure a healthy digestive system. Fruit sources: bananas - cantaloupe melon - kiwi fruit - peaches - tomatoes - watermelon. Vegetable sources: artichoke - asparagus - avocado - broccoli - carrots - corn - green peppers (capiscum) - kale - mushrooms - peas - potatoes - summer squash - sweet potatoes - winter squash.