How can apples prevent metabolic syndrome?

It's whole,not juice. A whole apple has its fiber, antioxidant peel, and cellular structure intact. Scientific studies done in england show a extremely high blood sugar followed by Insulin rise with apple juice (essentially flavored sugar with minerals), followedd by applesauce, followed by a baked apple. Last, of course, was the whole apple. Lowest rise in sugar, unprocessed, better for you in this form.
They don't. Metabolic syndrome is very preventable. Excessive sugar and carbohydrate intake cause high blood sugar levels, which then make your Insulin levels rise. Over time the chronically high Insulin levels lead to Insulin resistance and you will need to make higher and higher levels of Insulin to maintain normal blood sugar levels. Eventually you will have full blown diabetes, heart disease and htn.