Polycythemia vera occurs when a mutation in a bone marrow cell causes a problem with blood cell production. Normally, your body carefully regulates the number of each of the three types of blood cells you have.
Confidence votes 2.4K. Some healthy foods are the same as the ones that generations of school children have been told are good for them. Eat quality protein, beneficial fats and oils, fresh vegetables, fresh fruits and you can't go wrong.(Eat organic foods whenever possible.) Here are some examples of healthy foods: Also beneficial fats and oils (these are essential for health and to sustain life).  Healthy foods are not things like Taco Bell or McDonalds, or any  other fast foods, which have unhealthy preservatives. Don't let  their signs fool you. This is the type of M.S.G., hydrogenated oil,  aspartame, processed food that can damage your health.
1 Eating a balance of protective, nutrient-dense foods. 2  These foods include fresh fruits, vegetables, legumes, whole grains, lean meats, cold-water fish, eggs, low-fat dairy, soy products, and nuts and seeds. 3  These foods provide the levels of nutrients necessary to maintain good health and prevent disease.