Foods and drinks to limit include:

• fried foods and other foods high in saturated fat and trans fat
• foods high in salt also called sodium
• sweets, such as baked goods, candy, and ice cream
• beverages with added sugars, such as juice, regular soda, and regular sports or energy drinks

Drink water instead of sweetened beverages. Consider using a sugar substitute in your coffee or tea.
If you drink alcohol, drink moderately—no more than one drink a day if you’re a woman or two drinks a day if you’re a man. If you use insulin or diabetes medicines that increase the amount of insulin your body makes, alcohol can make your blood glucose level drop too low. This is especially true if you haven’t eaten in a while. It’s best to eat some food when you drink alcohol.

Source: US National Institutes of Health, Office of Dietary Supplements