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.
A diet consisting of just grapefruit juice and apple cider vinegar is too low in calories and nutrients to be healthy. A cup of unsweetened grapefruit juice has 94 calories, and although it provides more than 100 percent of the daily value for vitamin C, it doesn't provide any selenium or vitamins A, B-12, D, E or K.rapefruit doesn't provide all the nutrients necessary for good health. Photo Credit Stockbyte/Stockbyte/Getty Images. The grapefruit and apple cider vinegar combo diet involves consuming these two items mixed together, either in the form of a beverage or a pill.