Yam

Features:
Yam's appearance is cylindrical, slightly bent and slightly flattened, its length is about 15~30cm, and diameter is 1.5~1.6cm. it tastes light, slightly acidic, chews sticky. Its surface is smooth, with or yellowish-white.

Nutritional ingredient:
Iron stick yam contains 18 amino acid and more than 10 microelements and minerals, as well as includes large amount of protein, Vitamin B, C, E, glucose, Choline hydroxide solution, allantoin, etc.

Health benefits:

Yam is a good source of energy; 100 g provides 118 calories. It mainly composed of complex carbohydrates and soluble dietary fiber. Together, they raise blood sugar levels rather very slowly than simple sugars and therefore, recommended as the low glycemic index healthy food. In addition, dietary fiber helps reduce constipation, decrease bad (LDL) cholesterol levels by binding to it in the intestines and prevent colon cancer risks by preventing toxic compounds in the food from adhering to the colon mucosa.
The tuber is an excellent source of B-complex group of vitamins. It provides adequate daily requirements of pyridoxine (vitamin B6), thiamin (vitamin B1), riboflavin, folic acid, pantothenic acid and niacin. These vitamins mediate various metabolic functions in the body.

Fresh root also contains good amounts of anti-oxidant vitamin; vitamin-C. Provides about 29% of recommended levels per 100 g. Vitamin C has important roles in anti-aging, immune function, wound healing, bone growth.

They contain small amounts of vitamin-A, and beta-carotene levels. Carotenes convert to vitamin A in the body. Both these compounds are strong antioxidants. Vitamin A has many functions like maintaining healthy mucus membranes and skin, night vision, growth and protection from lung and oral cavity cancers.

Further, the tuber is indeed one of the vegetables rich sources of minerals like copper, calcium, potassium, iron, manganese, and phosphorus. 100 g provides about 816 mg of Potassium. Potassium is an important component of cell and body fluids, which helps controlling heart rate and blood pressure by countering hypertensive effects of sodium. Copper is required in the production of red blood cells. Manganese is used by the body as a co-factor for the antioxidant enzyme, superoxide dismutase. Iron is required for red blood cell formation.