Should I worry about how much processed meat I eat?

All those sausages, hotdogs, ham and salami can spice up your diet. Do they also increase the risk of cancer and Alzheimer's? Meat, under the right circumstances, is good for you. It is one of the best sources of protein, high in nutrients such as iodine, iron and zinc, and packed with B vitamins that can be difficult to get from a vegan diet. Even saturated fat has had its reputation rehabbed over recent years, with a meta-review of studies finding no association between the animal byproduct an...