The old saying ..."we are what we eat" is very true.
Therefore diet has a great impact on our health and fitness !
In Spain the finest jamón ibérico is called jamón ibérico de bellota (acorn). This ham is from free-range pigs that roam oak forests (called la dehesa) along the border between Spain and Portugal, and eat only acorns during this last period. It is also known as Jamón Iberico de Montanera. The exercise and the diet has a significant impact on the flavour of the meat; the ham is cured for 36 months.
What they eat flavoured the meat .
In Someset the finest pork that you will ever eat is from pigs left to forage on the wind fall apples in the cider apple orchards.
The meat is sweet and full of flavour because of their diet .
If a pigs diet can flavour its meat then it proves to me that everything that we eat can have a good or bad impact on our bodies !
Here is some research to prove the point...
As long ago as 1982, the National Research Council published a report called Diet, Nutrition, and Cancer, showing the evidence already available linking specific dietary factors to cancer of the breast and other organs.
Asian countries, such as Japan, have low rates of breast cancer, while Western countries have cancer rates that are many times higher. However, when Japanese girls are raised on westernized diets, their rate of breast cancer increases dramatically.
The traditional Japanese diet is much lower in fat, especially animal fat, than the typical Western diet. In the late 1940s, when breast cancer was particularly rare, less than 10 percent of the calories in the Japanese diet came from fat. The American diet, of course, is centered on animal products, which tend to be high in fat and low in other important nutrients. The fat content of the average American diet is in the range of 37 to 40 percent of calories.
Countries with a higher intake of fat, especially animal fat, have a higher incidence of breast cancer. Even within Japan, affluent women who eat meat daily have an 8.5 times higher risk of breast cancer than poorer women who rarely or never eat meat. The Surgeon General's Report on Nutrition and Health stated: "Indeed, a comparison of populations indicates that death rates for cancers of the breast, colon, and prostate are directly proportional to estimated dietary fat intakes."