Question: what vitamins are in kefir?
Answer: Protein: 4 grams.
Calcium: 10% of the RDI.
Phosphorus: 15% of the RDI.
Vitamin B12: 12% of the RDI.
Riboflavin (B2): 10% of the RDI.
Magnesium: 3% of the RDI.
A decent amount of vitamin D.