Churn definition, a container or machine in which cream or milk is agitated to make butter. See more.
Vitamin C is sometimes added by fortification, because content is variable, and much of that is lost in processing. Vitamin C also helps to prevent oxidation of the product. Other vitamin concentrations are low, but apple juice does contain various mineral nutrients, including boron, which may promote healthy bones.
1 Colds and flus. Instead of drinking orange juice or taking vitamin C supplements, try drinking pineapple juice. It has roughly the same amount of vitamin C, but also has been found to suppress coughs and loosen mucus (due to the bromelain).  Arthritis.