Calcium L-Threonate

Calcium L-threonate is the calcium salt of L-threonic acid, a four-carbon sugar acid related to the breakdown products of ascorbic acid. Nustras supplies it as a white powder, in standard, micronised and directly compressible granular grades, as a calcium source for dietary supplements.

It is formulated into calcium and bone-mineral tablets and capsules, often alongside magnesium and vitamin D; into combination mineral powders and stick packs; into effervescent and chewable formats, where its solubility and mild taste are useful; and into premixes for fortified foods where regulations allow.

Calcium L-threonate is supplied as a white crystalline powder or granule (CAS 70753-61-6, molecular formula C8H14CaO10, molecular weight 310.27). Calcium content, loss on drying and particle size are standardised to specification; identity is confirmed by infrared spectroscopy and calcium by complexometric titration. Heavy-metal and microbial limits are supplied to specification and confirmed on each lot's certificate of analysis.

Nustras supplies calcium L-threonate in bulk commercial quantities, in food-grade bags and fibre drums, to manufacturers and formulators internationally, with a certificate of analysis, specification sheet and country-of-origin documentation on every lot. Calcium L-threonate is accepted as a calcium source for supplements in several major markets; buyers confirm the elemental-calcium contribution, grade and permitted level for their application. Contact us for grade, pricing per kilogram and lead time.