1, the use of different methods: raw yam did not undergo any processing, while fried yam is used to dry yam slices with bran fried to slightly yellow scorched.

2, the use of different: raw yam is generally used for food, fried yam are used for medicinal purposes.

3, the effect is different: raw yam tonic spleen and stomach, the production of fluid and beneficial lungs, tonifying the kidney and astringent. Used for spleen deficiency, less food, lung deficiency, coughing, kidney deficiency, spermatorrhea, thirst, etc., and fried yam favor spleen and stomach, kidney and essence.

Expanded Information:

Note:

1, buy fresh yam, yam meat showing snow white is fresh, if the yellow rust-like Don't buy it, it's not fresh. Some yam surface will be some abnormal spots, may be infected with disease. Do not buy sprouted yam to avoid poisoning.

2, yam should be peeled to eat, and avoid yam can not be eaten raw, raw yam contains certain toxins.

3, yam has astringent effect, so the dry stool should not be eaten, in addition to solid evil people also avoid eating yam.

4, cut the good yam shredded or sliced yam slices need to be immediately soaked in salt water to prevent oxidation black.

Baidu Encyclopedia - Raw Yam

Baidu Encyclopedia - Stir-fried Yam