They can be used to synthesize nucleotides and can also be metabolized and excreted. Nucleic acid can be divided into RNA and DNA. In human body, DNA can be replicated during cell division, and can also be transcribed into RNA to synthesize protein. In these processes, new DNA and RNA need to be produced, and the aforementioned nucleotides need to be used. This is the nutritional value of nucleic acid or nucleotide. In all cells (whether animals, plants or microorganisms), there is a nucleus, and there is DNA in the nucleus, which can be used as the source of nucleic acid intake by human body. There are only two bases (purine and pyrimidine) and five bases (adenine, guanine, cytosine, thymine and uracil) that make up nucleic acid. They are all very common, and none of them are rarely ingested or hard to be absorbed in the diet.
In this way, as long as the diet is reasonable and the digestion and absorption are normal, the human body will not lack nucleotides. But if you can't get enough nucleic acid from food, it is feasible to supplement it through other channels. For example, milk powder does not contain cells, and nucleotides can be artificially added; After the operation, you can also quickly replenish nucleotides to meet the needs of generating new cells. Finally, excessive intake of nucleic acids or nucleotides will not accelerate the synthesis of cells, they will only be metabolized and excreted. Among them, the metabolite of purine in human body is uric acid. Too much uric acid can cause gout. Therefore, taking too much nucleic acid is harmful to health. For most people, it is enough to keep a reasonable diet.