was sind gesunde kohlenhydrate — when to see a doctor?

The question about healthy carbohydrates and when to see a doctor cannot be specifically answered from the provided information. Generally, whole grains, legumes, vegetables, and fruits are considered healthy carbohydrate sources because they provide fiber, vitamins, and phytonutrients and cause a slower rise in blood sugar. A doctor should be consulted if symptoms such as unexplained fatigue, cravings, weight changes, digestive issues, or abnormal blood sugar levels occur. Medical guidance is also needed for existing conditions like diabetes, metabolic syndrome, or gastrointestinal diseases. The provided contexts contain no specific information on this topic; they focus on DNA tests, microbiome analyses, and personalized diet plans. Therefore, the answer remains general and evidence-aware. The evidence is based on established dietary guidelines, not on the given sources.