As long as it is yogurt, it must contain fat. Yogurt is fermented from pure milk? Pure milk itself contains some fat? After it is fermented into yogurt, its fat content doubles? But easy to digest? No reduction? So plain yogurt cannot be fat-free? Unless the landlord buys skim milk powder and flushes it? Want to drink plain yogurt? Mengniu? Spring in the west? The weather is good.