L-Threonine Side Effects

L-Threonine, CAS# 72-19-5, widely used as nutrition supplements. L-Threonine is widely accepted as safe food nutrition supplement in many food products. L-Threonine is a amino acid manufactured through fermentation, available as White to light brown, crystal powder.

General Side Effects

No significant side effects reported. L-Threonine can cause stomach upset, headache, nausea, and skin rash in specific groups of individuals.

Suggested Dosage

As L-Threonine is widely known as safe, there is no limit on dosage of intake. However, we still recommend consumers to consult professionals before using large quantity of L-Threonine for long period.
* ADI: Acceptable Daily Intake
* MTDI: maximum tolerable daily intake
* Data source: JECFA Database of WHO

Special Groups Precaution

Special groups refer to newborns, children, pregnant and any other applicable vulnerable groups.
There is no evidence that L-Threonine could have any negative effects on these vulnerable groups. It should be safe to use L-Threonine in food for newborns and pregnant. However, we still recommend consumers to consult professionals before using large quantity of L-Threonine for long period in food for newborns or pregnant.

GRAS Affirmation: Yes

Generally recognized as safe(GRAS) is a FDA designation that a specific substance or ingredient is generally considered safe by experts, and so is exempted from the usual Federal Food, Drug, and Cosmetic Act (FFDCA) food additive tolerance requirements. L-Threonine is considered safe by FDA according to existing data and granted GRAS status.

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