N-Acetyl L-Cysteine (NAC): The All-Rounder Supplement for Immunity, Detox & Mental Health

Posted by Natalia Frost
8
May 15, 2025
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N-Acetyl L-Cysteine is a powerful and versatile nutritional supplement that can immensely benefit a person’s health. It is a unique one in the bunch – jack of all trades and master of some! NAC is converted to L-Cysteine in your body, which is a semi-essential amino acid. Amino acids are building blocks of proteins, and semi-essential means they tend to run low during infancy and times of illness or injury. 

How does your body create cysteine?

Cysteine is made from two other amino acids, serine and homocysteine, a breakdown product of methionine (essential amino acid). Some food sources that are rich in methionine and serine are turkey, chicken, cheese, yogurt, eggs, legumes and sunflower seeds. 

Your body needs an ample amount of folate, vitamin B6 and B12 to support the production of cysteine from methionine and serine. Cysteine is also directly found in many high-protein foods including braised lamb, chicken breast, cottage cheese, ricotta and more. 

Cysteine is a precursor for the master antioxidant glutathione that helps fight free radicals that can cause cell damage. Glutathione is involved in tissue building and repair, making chemicals and proteins needed in the body, and in immune system function. When NAC is taken as a supplement, your body makes it into cysteine and then into glutathione. 

 To Know More: https://www.ithrive.shop/blogs/essential-insights/n-acetyl-l-cysteine-nac-the-all-rounder-supplement

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