Finally, it has been proven that monounsaturated fats in food can contribute to longevity if they are obtained from plants, not animals. Monounsaturated fats from animal products come mainly from dairy products, eggs, poultry, fish and red meat. The same elements can be obtained by the body from vegetable oils, especially Extra Virgin olive oil, vegetables, fruits, especially avocado, seeds, dried fruits, nuts, especially macadamia, pecans, cashews, almonds, peanuts.
There was surveillance going on at Harvard all this time. During the study, scientists studied the data of 29,966 men and 63,412 women. The records included detailed nutrition questionnaires that were administered every four years. Over the course of 22 years, 20,672 deaths occurred, of which 4,588 were associated with heart disease. Evaluation of nutrition information revealed the following: