Apples contain a large amount of pectin. The dietary fiber included in its composition serves as food for the microflora of the large intestine. And also pectin acts as a natural adsorbent, i.e. helps to remove waste products of our body. This is probably why it is often said that thanks to apples, you can live up to 100 years. There are many different versions on the topic of longevity:
One of the first, sufficiently substantiated experimentally scientific theories put forward at the turn of the XIX and XX centuries I. I. Mechnikov. One of the main reasons for aging, he considered the poisoning of the body with special poisons-toxins, the products of putrefactive decay that occurs in the intestines. Thus, apples fit perfectly into such a theory, but we must not forget that they contain a lot of fructose. And most of the fructose is used by liver cells, which break it down into fatty acids, oversaturation with which leads to the development of cardiovascular diseases and subsequent obesity. This quality is negative for people who are already overweight, among whom there is a large percentage of people with diabetes.
Eating one apple a day is very useful. By the way, an apple is a great option for a morning snack (a meal between breakfast and lunch):
“One apple a day - will leave your doctor without a job ”(English proverb). There is some truth in it: the fiber that apples contain - especially pectin - improves intestinal peristalsis, helps to fight constipation, and maintain the balance of microflora. Having a healthy gut is very important for the immune system. They support the intestinal microflora and organic acids contained in apples (and not only in apples), they improve the absorption of food, as well as another group of substances present in fruits, including apples, - bioflavonoids. But apple lovers are far from getting rid of all health problems.
You can. One apple a day does not harm your health in any way, so your chances of living to a hundred years will definitely not diminish, and possibly even slightly increase.