Vitamin content in food and dietary supplements

We offer a range of liquid chromatography-based methods to determine the vitamin content of food and dietary supplement samples.

Examples of target analytes include:

• Vitamin A (retinol, beta-carotene)

• Vitamin B1 (thiamine)

• Vitamin B2 (riboflavin)

• Vitamin B3 (niacin)

• Vitamin B5 (pantothenic acid)

• Vitamin B6 (pyridoxine)

• Vitamin B7 (biotin)

• Vitamin B9 (folic acid)

• Vitamin B12 (cyanocobalamin)

• Vitamin C (ascorbic acid)

• Vitamin D3 (cholecalciferol)

• Vitamin E (alpha-tocopherol, alpha-tocopheryl acetate)

• Vitamin K1 (phylloquinone)

• Vitamin K2 (menaquinone-4, menaquinone-7)

According to EU regulations, the concentration of a vitamin can only be declared on the packaging if it is present in the food or supplement in significant amounts. For beverages, this means a minimum of 7.5% of the daily reference intake (DRI) per 100 ml of the product. For other products, the minimum concentration is 15% of DRI per 100 g.

Vitamin content analysis is the recommended way to verify that the declared level is accurate, especially when a food or supplement is marketed with vitamin-related health claims.

The displayed price range applies to the analysis of one vitamin in one sample. Package deals are available to determine several vitamins simultaneously and to analyze multiple samples. Please ask our experts for an offer.