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  2. Non-Essential Amino Acids

Glycine

What is Glycine?

Glycine is a non-essential amino acid that is involved in the synthesis of proteins and other important compounds like creatine and collagen. It also plays a role in the central nervous system by functioning as an inhibitory neurotransmitter. Glycine is found in high concentrations in animal products, particularly in collagen-rich foods like bone broth and gelatin.


Why do I have an intolerance?

Glycine intolerance may arise due to difficulties in metabolizing or absorbing the amino acid, potentially linked to genetic factors or digestive health issues. This intolerance can cause symptoms like digestive upset, headaches, or fatigue after consuming foods rich in glycine, such as meat-based broths or collagen supplements.


What can I do about it?

If you suspect glycine intolerance, consider avoiding or limiting collagen-rich foods like bone broth or gelatin. Opt for alternative protein sources, like plant-based proteins, which are lower in glycine. Supporting digestive health through a balanced diet and lifestyle changes may also improve glycine metabolism over time.