Some surprising health benefits of sweet potatoes

Many people think about sweet potatoes as being nothing more than plain old potatoes that can tweak our taste buds with some extra flavor. Yet cutting-edge research on sweet potatoes tells us that nothing could be further from the truth as they have so many unique nutritional benefits to offer!

Health benefits of sweet potatoes
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One difficulty in describing the health benefits of sweet potatoes is knowing where to begin. There are a surprising number of nutrient categories responsible for the health benefits of this under appreciated tuber. Among these categories are antioxidants, anti-inflammatory nutrients, and blood sugar-regulating nutrients. Each category brings with it valuable health benefits.

 

 

 

While many people lump all potatoes into one category, potatoes can actually be quite different in terms of their taste, flavor, texture, and nutrients. Sweet potatoes are no exception! Sweet potatoes belong to an entirely different food family than either yams or the common potato that is such a large part of the U.S. diet.

Health benefits of sweet potatoes

Sweet potatoes pack a powerful nutritional punch. One of the amazing health benefits of sweet potatoes is they have got over 400% of your daily needs for vitamin A in one medium spud, as well as loads of fiber and potassium. They have got more grams of natural sugars than regular potato but more overall nutrients with fewer calories.

Health benefits of sweet potatoes

Despite the terms sweet potato and yam often being used interchangeably, they are actually not even botanically related. Yams are almost exclusively grown in Africa and are more dry and starchy compared to a sweet potato. So how did these two vegetables become so intertwined?

There are two different varieties of sweet potatoes, firm and soft. When soft sweet potatoes were being cultivated in the Americas, African slaves began calling them yams because of their resemblance to their familiar native vegetable. The name caught on as a way to distinguish between the two types of sweet potatoes. Today, you are unlikely to find a true yam in the grocery store unless you are shopping in an international market.

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So lets take a closer look at the health benefits of sweet potatoes:

Diabetes: Sweet potatoes are considered low on the glycemic index scale, and recent research suggests they may reduce episodes of low blood sugar and insulin esistance in people with diabetes.The fiber in sweet potatoes makes a big difference too. Studies have shown that type 1 diabetics who consume high-fiber diets have lower blood glucose levels and type 2 diabetics may have improved blood sugar, lipids and insulin levels. One medium sweet potato provides about 6 grams of fiber (skin on).

The Dietary Guidelines for Americans recommends 21-25 grams of fiber per day for women and 30-38 grams per day for men, which most people do not reach.

Blood pressure: Maintaining a low sodium intake is essential to lowering blood pressure however increasing potassium intake may be just as important. According to the National Health and Nutrition Examination Survey, fewer than 2% of US adults are meeting the daily 4,700 mg recommendation for potassium.3 One medium sweet potato provides about 542 milligrams.

Also of note, high potassium intake is associated with a 20% decreased risk of dying from all causes.

Cancer

Among younger men, diets rich in beta-carotene may play a protective role against prostate cancer according to a study conducted by the Harvard School of Public Health’s Department of Nutrition.4 Beta-carotene has also been shown to have an inverse association with the development of colon cancer in the Japanese population.

Digestion and regularity

Because of its high fiber content, sweet potatoes help to prevent constipation and promote regularity for a healthy digestive tract.

Fertility

For women of childbearing age, consuming more iron from plant sources appears to promote fertility, according Harvard Medical School’s Harvard Health Publications. The vitamin A in sweet potatoes (consumed as beta-carotene then converted to vitamin A in the body) is also essential during pregnancy and lactation for hormone synthesis.

Immunity

Plant foods like sweet potatoes that are high in both vitamin C and beta-carotene offer an immunity boost from their powerful combination of nutrients.

Inflammation

Choline is a very important and versatile nutrient in sweet potatoes that helps with sleep, muscle movement, learning and memory. Choline also helps to maintain the structure of cellular membranes, aids in the transmission of nerve impulses, assists in the absorption of fat and reduces chronic inflammation

In a study published by the Journal of Medicinal Food, purple sweet potato extract was found to have positive anti-inflammatory and antilipogenic effects as well as free radical scavenging and reducing activity.

Vision

According to Duke ophthalmologist Jill Koury, MD, vitamin A deficiency causes the outer segments of the eye’s photoreceptors to deteriorate, damaging normal vision. Correcting vitamin A deficiencies with foods high in beta-carotene will restore vision.5

Also of note, the antioxidant vitamins C and E in sweet potatoes have been shown to support eye health and prevent degenerative damage.

A higher intake of all fruits (3 or more servings per day) has also been shown to decrease the risk of and progression of age-related macular degeneration.

This were briefly some of the health benefits of sweet potatoes. Hope you enjoyed our article!

Health benefits of sweet potatoes
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