A deficiency in vitamin A can lead to night blindness and other vision problems

Detoxification : Methionine is also involved in the detoxification of the body

Selenium helps protect the thyroid from oxidative stress and may help prevent or alleviate autoimmune thyroid diseases such as Hashimoto's thyroiditis and Graves' disease

supporting collagen production for healthy skin and tissues

building muscles

Oestriol im Speichel A deficiency in vitamin ASaliva sample to measure the free, unbound estriol level. An estriol test measures the concentration of the hormone in saliva. This allows you to detect an estriol deficiency or excess.