Kelp cannot lower blood sugar. Kelp itself does not promote insulin secretion, so it can not really achieve the effect of lowering blood sugar. However, kelp itself is low in sugar, so diabetics can consume it in moderation as a daily food. Diabetic patients can control their blood sugar and reduce fluctuations by consuming foods with lower sugar content. To control blood sugar can be consumed such as buckwheat noodles, cornmeal, oats, pumpkin and other low starch staple food; carrots, bitter melon, black fungus, eggplant, green peppers, winter melon and other vegetables with low sugar content. In addition to controlling blood glucose with a low-sugar diet, in addition, the purpose of lowering blood glucose can be achieved by increasing the amount of exercise. It is recommended to combine the advice of professional physicians and synthesize the patient’s own situation to formulate a reasonable sugar-lowering program.