Food and Human Nutrition for Form Three | All Topics | Full Notes
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Seeds are the seeds of flowering plants that have matured, for example, such as gnomes which come from sunflower seeds, then there are chia seeds which come from the flower seeds of the chia plant (Salvia hispanica), there are sesame seeds which come from sesame plants, and flax seeds or seeds derived from flax seeds.
Beans are a type of grain that comes from legumes, such as green beans, peanuts, kidney beans, peas, and soybeans. When viewed from its shape, legumes have a soft skin texture and are easy to peel by hand. Usually, one pod can contain one to six seeds.
Nuts are a type of grain that comes from trees, for example, cashews, hazelnuts, pistachios, almonds and so on. So are nuts included in grains or nuts? We can conclude that the difference between grains and nuts is from the scope. Nuts are definitely grains, while not all grains are nuts. So pulses are a small subset of grains.
Like grains, beans are edible seeds, but beans are usually bigger than grains and come from flowering plants instead of grasses. They have been cultivated for thousands of years in all parts of the world. Broad beans, mung beans and adzuki beans were first cultivated in Asia, while lima beans, pinto beans, kidney beans and haricot beans (now used to make “baked beans”) were first cultivated in South America. The cocoa bean, from which chocolate is made, is also from South America, while Africa’s most famous bean by far is the coffee bean.
Beans come from a large family of plants called legumes. Other edible legumes include chick peas, lentils, black-eyed peas and soybeans. Most legumes have long seedpods in which the seeds grow. After the seeds have grown into what we call beans or peas, the seedpods are picked off the plant and split open.
