More than just a meat substitute, beans are so nutritious. Throughout
history, beans have been used as a
staple of the diet, and the health benefits derived from them have been well
recognized.
Proteins are the most notable nutrient in beans, the protein
percentage in beans varies according to variety between 21% and 24% which is
equal to or even greater than animal based foods such as fresh tuna, beef, or
chicken.
Sixty to 65% of the
calories in dry beans are from carbohydrates, predominantly in the form of
starch, resistant starch, and small amounts of non-starch polysaccharides.
Beans are low in sugar, which prevents
insulin in the bloodstream from spiking and causing hunger. When you substitute
beans for meat in your diet, you get the added bonus of a decrease in saturated
fat. The properties of the carbohydrates found in beans, along with their fiber
content, make them ideal foods for the management of abnormalities associated
with insulin resistance, diabetes and hyperlipidemia.
For vitamins and
minerals, beans are an excellent source of copper, phosphorus, manganese and
magnesium. Most dry beans are a rich source of iron, which makes them ideal for
vegans who do not get an animal source of iron. The nutritional content of most
dry beans is very similar, with the exception of iron content. White beans have almost twice the iron of
black beans, while kidney beans are somewhere in between.
Dry beans are an excellent source of the water-soluble
vitamins thiamin and folic acid and a good source of riboflavin and vitamin B6.
Beans are an excellent source of folates, persons at high risk for coronary
disease should increase folates intake.
Beans act to protect the
skin and mucosa because they are a good source of two vitamins factors
(Niacin and Pantothenic Acid), they are recommended in cases of eczema, itching skin, dry skin, and general dermatosis.
Beans are very rich in vegetable fiber as in the case with
all legumes. One hundred grams of dried beans provide 15.2g of fiber, more than
half the RDA (Recommended Dietary Allowance) for an adult (25g). The fibre in
beans lower blood cholesterol levels. Beans also
provide substantial amounts of insoluble fiber, which help attract water to the
stool and enhance transit time of waste through the colon. This may help to combat constipation, colon
cancer, and other conditions that afflict the digestive tract.
Beans are high in antioxidants, a class of phytochemicals
that incapacitate cell-damaging free radicals in the body. (Free radicals have
been implicated in everything from cancer and aging.
The fat content of dry beans is very low (less than 2% of
total content), and they contain predominately unsaturated fatty acids. There is some variation based on variety and
growth conditions, but most beans contain about 85% of their fat as unsaturated
fatty acids. Because beans are plant
foods, they are cholesterol-free.
Beans are ideal for those with high blood pressure (hypertension) because they are low in sodium and high in potassium.
Beans contain some complex sugars of the raffinose
family. These are the sugars that cause
digestive issues with bean consumption.
These sugars must be broken down by enzymes that are not available in
the human digestive system and are therefore available for microbial action in
the colon, resulting in gas production and flatulence. These sugars can be removed effectively from
the beans by soaking the beans, and then cooking them, discarding the soaking
and cooking liquids.
Including 3 cups of
cooked dry beans in the diet on a weekly basis
will enhance health-promoting aspects of the diet, longevity and will be important in
reducing risk for chronic diseases such as obesity, cancer, diabetes and heart
disease.
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