Fortified Cereal. Meet 100 percent of your daily needs for iron and B12 with some fortified cereals. Manufacturers add to the natural iron content of most whole oat, corn, wheat and rice cereals, and they enrich many of these with a variety of B vitamins.
Diet coke has 0 calories. There are under 10 calories in a 2litre bottle.
In brief: In moderation. Coke zero is a diet coke product that uses aspartame as an artificial sweetner. In moderation, it is not harmful. I recommended no more than two per day to my patients. Consult with your doctor to see if you have other conditions that would not be conducive to taking coke zero. In brief: In moderation.