S-adenosylmethionine (SAM or SAMe) is a natural compound that is essential for many biological processes in the human body.

It is produced in the liver by combining the amino acid methionine with adenosine triphosphate (ATP), which is the main source of cellular energy.

This process is part of the so-called methionine cycle, which ensures the recycling of methionine and the formation of substances important for various metabolic pathways.

SAMe is one of the main molecules involved in methylation, a chemical process in which a methyl group (-CH3) is transferred to other molecules. Methylation is critical for a number of biological functions, including the regulation of gene expression, DNA and RNA synthesis, phospholipid formation, and many other processes.

For example, methylation affects the activity of genes by controlling their switching on and off, thereby affecting cell growth, the repair of damaged genetic information, and the proper functioning of the immune system.

This process is also important for the proper functioning of the nervous system, as it is involved in the production of neurotransmitters such as serotonin, dopamine, and noradrenaline, which affect mood, motivation, and overall mental state. The proper balance of these substances is essential for cognitive function, learning, and memory.

In addition, SAMe contributes to the synthesis of phosphatidylcholine, a major component of cell membranes, helping to maintain their structure and permeability. It also plays an important role in the formation of creatine, a compound that provides rapid energy transfer in muscles, which is crucial for movement and physical performance.

Additionally, SAMe supports the production of glutathione, which is one of the body's main antioxidants and helps neutralize free radicals, protecting cells from damage.

Due to its role in various metabolic pathways, SAMe levels in the body are influenced by several factors, such as diet, age, and overall health. Since it is synthesized in the liver, its production can be influenced by the function of this organ, as well as the availability of methionine, an essential amino acid, in the diet. Rich sources of methionine include eggs, meat, fish, and dairy products.

Natural Nutrition SAMe is a 100% pure powder, so you can be sure you are giving your body the highest quality. The powder contains no added chemicals, additives or bulking agents.