What are the factors of good nutrition?

Diet and exercise. Diet rich in fresh vegetables, fruits, whole grains, nuts, beans, legumes, lentils, low fat milk products, small amounts of lean meats. Limit intake of saturated fats. Exercise 30 minute/day. Consult this site for more info. http://www.choosemyplate.gov/.
B, V, M. Balance, variety and moderation. Eating a well balanced meal with a variety of different foods in moderation are all parts of good nutrition. Try to eat from each of the food groups including, protein including meat, chicken, fish, seeds and nuts, carbs from fruits and vegetables, beans, legumes, whole grains, and healthy oils low in saturated fats such as olive oil, avocado.