Some foods that contain nucleic acids are fish, beans, nuts, spinach, beef, mushrooms and eggs; brewer's yeast and wheat germ are also good sources of nucleic acid. Nucleic acids are large molecules that are made from nucleotides. Two main forms of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Some types of fish which are rich in these nutrients are sardines and salmon. Organ meats also contain nucleic acids. Although found in many foods, there are also supplements that people may take which are good sources of these nutrients. Similarly, there are many other nutrients and minerals, such as folic acid, riboflavin, choline manganese and zinc, that can help in the synthesis of RNA and DNA.