Dear, there are hundred and one food items in the world. Every item is rich in 1 Carbohydrates, 2. Proteins, 3 Lipids (Fats and Oils), 4. Vitamins and 5. Minerals. So eat ALL but restrict to 4 or 5 items daily. No diabetes.
This common maxim simply says that one should not eat too much. Poor diet (inadequate amount, not varied, limited to f. e. rice) is certainly not healthful. Put this way, the question is unscientific.
Diet and nutrients should be balanced. Hardly matter poor diet rich health poor diet. quality-wise and quantity-wise should be optimal.
one needs to avoid processed food and try to avoid high-fat trans-fatty acids, simple sugar, and high salt. frequent intervals like making 3 meals to 6 meals. regular exercise is also a part of your diet. so healthy food rich health.
Ms Reddy. I agree on what you wrote about restricting one's diet to a limited type of food product. I also like how how you describe the food product's constituents in a way that is similar to "Nutrition Facts" labeling on their containers. So to live long, in Canada, we visit our medical doctors and their colleagues, get examined, and get diagnosed for chronic ailments. And based on this diagnosis we use "Nutrition Facts" information to choose what we eat.