The disadvantages are loss of appetite and nutritional deficiencies.

JinWei, as a lactic acid bacteria drink, is a "drink" and milk is only one of the ingredients, so you can't compare milk drinks with milk. Drinking too much and get used to, will affect the appetite, for milk and other nutrient-rich products intake is not enough, affect their own nutritional needs, may also affect the development.

According to the survey, the milk content of milk-containing drinks compared to yogurt is greatly reduced, and the nutrient content is also significantly reduced. "The calcium content of milk-containing drinks is usually less than half or even a quarter of that of real yogurt; the protein content is also very low, and even with the extra large amount of lactobacilli added to provide protein, it is usually only a third of that of real yogurt."

Expanded:

Difference between lactic acid bacteria drinks and yogurt:

Yogurt is fresh milk sterilized and sterilized and then added to the acid modulation and become, the milk is acidified, the original nutrients have been well preserved, at the same time, distinctive flavor. Lactobacillus drinks, although labeled as containing lactobacilli, milk and other ingredients in its composition, but in fact the milk content of which is less, and protein, fat, iron and vitamin content are much lower than milk.

So, when shopping for yogurt and lactobacillus beverages should be carefully differentiated.

Baidu Encyclopedia - Lactobacillus Drinks

People's Health - Are Milk Drinks Really "Nutritious"?