It should be said that attempts to determine the best foods are made constantly. Army armchair scientists, doctors and nutritionists tirelessly analyzes all that can be eaten, and on this base is a rating. Here is one of the most recent:
Avocado: effect on cholesterol levels and reduces the risk of diabetes and cancer.
Apples: particularly useful for the normalization of the blood vessels and the heart and can also be a preventive measure against cancer.
Blueberries: very nutritious, good for the eyes, a beneficial effect on memory and reduces the aging process, and is a good means of preventing diseases associated with the brain and heart, diabetes and cancer.
Broccoli: Excellent tool for the prevention of cardiovascular diseases, diabetes and cancer.
Fish, especially salmon, sardines and herring: very good for the heart and brain function, reduces the risk of cancer, helps get rid of depression.
Legumes - peas, beans, lentils: energy products, invigorates. They are also good as a prophylactic to maintain in good condition of the heart and blood vessels, slow the progression of cancer, normalize blood sugar levels.
Fungi: their use is beneficial for restoring the immune system. It is believed that they can help fight cancer and viral diseases, as well as normalize blood pressure and, according to some reports, the level of cholesterol.
Almonds and walnuts: have a beneficial effect on the heart, reduce cholesterol, calories and very filling, help not to overeat.
Flaxseed: to reduce the risk of vascular disease and heart.
Pomegranate juice: improves the condition of blood vessels and thus reduces the risk of stroke, heart disease and some forms of cancer, slows the aging process.
In other ratings of not less than convincingly proved the usefulness of other foods, especially garlic, strawberries, carrots, peppers, bananas, green tea, soy, milk, eggs, chicken, herbs, etc. Probably each of scientists rights, dignity, no matter what product it is not defended. After all helpful, created by nature, just something that we have underestimated, and the properties of something until you have learned.
It seems that the choice of useful products to be understood that, firstly, it is better to choose those which are conventional in your region, and secondly, not be carried away too large doses of products, even the most useful.