The purest milk must contain calcium.

The purest milk must contain calcium, which means high calcium milk.

Only milk with a calcium content of 12 mg can be called high calcium milk.

Generally speaking, the calcium content in every 1ml of ordinary milk is about 9 mg-12mg. According to the stipulation of "content claim" in the latest nutrition labeling standard in China, only when the calcium content reaches or exceeds a certain value (3%NRV, that is, about 12 mg/1ml) can it be called "high calcium milk".