High blood sugar can eat yam, but should eat reasonably, not excessive consumption. High blood sugar may be caused by stress factors that lead to excessive secretion of adrenocorticotropic hormone, which can be manifested as transient hyperglycemia. There may also be diabetes. Although the former has not yet reached the diagnostic standard of diabetes, it is also among the people who are prone to diabetes, so it is important to have some control over the diet. Yam contains starch, but also contains some iron, calcium, protein and other substances beneficial to the human body, which can replenish nutrients for the body. However, one must be careful to eat reasonably and not to eat too much at one time. If you eat yam as a staple food, you should reduce the intake of other staple foods accordingly, in order to achieve a balance of total calories. High blood sugar patients usually also moderate exercise, if there is obvious discomfort, to follow the doctor’s advice regular application of hypoglycemic drugs or injection of insulin for treatment.