The idea that diabetics should avoid sugar is centuries old. Diabetes is a condition that causes high blood sugar. Sugary foods cause blood sugar levels to increase. Therefore, people with diabetes should avoid sugary foods in order to prevent hyperglycemia (high blood sugar) and keep their diabetes under control.
One of the most frequently heard myths about diabetes is that people with the condition have to adopt a sugar-free diet. This is not true. Diabetics can definitely enjoy their sweets, but in moderation. One does not have to totally ban sugar from the diet, but care has to be taken to monitor the amount we eat and in what combination.
What commonly happens is that normal people assume sugar to include- only desserts, and extra sweet things. What they don’t realize is that the main culprit to avoid or control is the intake of carbohydrates. There are two types of carbohydrates that raise your blood sugar levels: sugar and starch. Both will elevate your blood sugar to approximately the same level (assuming you ate the same amount of each). As a result of this, it does not make sense to eat one type of carbohydrate (starch) but not the other (sugar). So, basically a low-carb diet will be a more diabetes-friendly choice than a high-carb food diet.
The majority of sweets and dessert are high in calories and have minimal nutritional value. So, while these “treats” can be included into any diabetes meal plan, they are still food choices that should be eaten in limited quantities and kept for specific occasions.
Limiting or avoiding sugar-rich beverages is recommended, this is just completely avoidable for diabetics. There is no added nutritional value, and just for the sake of taste you are asking for trouble.
So, go ahead and eat your cake, but make sure you don’t eat the whole cake!