Generally, diabetics can't eat foods that are too salty, too spicy and too greasy, and foods with too much starch can't be eaten. Even sweets are forbidden, so the dietary requirements are very high. Eat more celery and spinach, eat less meat, try to eat lean meat and fish, mainly light. Fruits with high sugar content cannot be eaten. In fact, some sugar-free foods on the Internet still contain some sugar, but few are really sugar-free.