Purple Yam

Sweet Potato or Yam is a tuberous crop with scientific name Ipomoea Batatas. Its plant is a creeper with heart shaped or lobed leaves. The tubers color vary from purple or red to pale yellow or white, depending upon the variety, soil type, climate and minerals.

The red variety has drier and harder flesh while the white or the yellow type has more juicy flesh. The red variety has a characteristic aroma which becomes more prominent on boiling. The more reddish or orange the color of the flesh of the sweet potatoes, the stronger is this aroma. Perhaps this is due presence of beta carotene whose concentration also increases with the color.

• Immunity: Being very rich in beta carotene, which is a major anti oxidant, apart from vitamin-C and B-complex, iron andphosphorus present in them, sweet potatoes are excellent immunity boosters.
• Inflammation: Like the common potato,sweet potato also has anti inflammatory properties, although it does not belong to the family of common potato. This is primarily due to presence of beta-carotene, vitamin-C andmagnesium. It is equally effective in curing internal and external inflammations.
• Asthma: The sweet potato is effective in curing congestion of nose, bronchi and lungs, thereby giving relief in asthma. Its typical aroma helps in this.
• Bronchitis: The concentration of vitamin-C, iron and other nutrients help curing bronchitis. The sweet potatoes are believed to be capable of warming up the body (may be due to the sweetness and other nutrients). This property also is beneficial in bronchitis, apart from its property to ease congestion.
• Arthritis: Beta-carotene, magnesium, zincand vitamin-B complex, among others, make sweet potato a helping hand to cure arthritis. The water in which the sweet potatoes are boiled can be applied externally on joints too to ease pain in arthritis.
• Digestion: The fiber content of sweet potatoes is higher than that of common potatoes and it tastes good too. When these two factors are combined with other minerals like magnesium present in sweet potatoes, it makes an excellent facilitator for digestion. Sweet potatoes are easy to digest too, since they mainly contain starch. They are soothing for the stomach and intestines too.
• Cancer: Beta-carotene, the champion anti oxidant and anti carcinogen, the pigments responsible for the color of the peel of the sweet potatoes and vitamin-C, are very beneficial for curing many types of cancer, mainly those of colon, intestines, prostrate, kidneys and other internal organs.
• Water Balance: The fiber or roughage present in sweet potatoes helps retain water. This maintains water balance in the body.
• Stomach Ulcers: Sweet potato has a soothing effect on the stomach and intestines. The vitamins (B-complex and C), beta carotene, potassium and calcium are very effective in curing stomach ulcers. Moreover, the roughage in sweet potatoes prevents constipation and resultant acid formation, thereby reducing the chance of ulcers. The anti inflammatory and soothing properties of sweet potatoes also reduce the pain and inflammation of the ulcers.
• Diabetes: Contrary to the popular belief, the sweet potatoes are beneficial for diabetics. Amazingly, they are very effective in regulating blood sugar lever by helping proper secretion and function of insulin. Of course, that does not mean that diabetics should eat them indiscriminately. The idea is that they can replace theirrice or carbohydrate intake with sweet potatoes.
• Weight Gain: This is easily understood. The sweet potatoes are sweet as well as contain very good amount of complex starch, apart from healthy vitamins, minerals and some proteins too. Moreover, they are very easy to digest. Thus they provide a lot of energy and are excellent bulk builders. Those suffering from inferiority complex due to their bones visibly sticking out of their skin, will welcome this news, without having any risk any side effect, which most of the synthetic bulk building dietary supplements run.
• Other Benefits: They are effective in quitting addictions like smoking, drinking and taking certain narcotics. They are good for the health of arteries and veins, as they protect their walls against hardening. The high concentration of beta carotene (an alternative of vitamin-A) and phosphorus are excellent for ocular and cardiac health.