你们说的对，（但不可以从natural sources提取vitamins吗？）

"You may be surprised to find out that almost all multivitamins (including Vitamin C in these multivitamins) are made using synthetics."

"Supplements that list nutrients individually, such as vitamin C, or use chemical names like ascorbic acid, are almost certainly synthetic."

所有跟帖： 

• 总有办法提,成本高.不如直接吃水果了 -5181- ♂ (0 bytes) () 12/19/2022 postreply 11:23:16

• 但如果需要大剂量VC，比如用于防御或治疗流感、或其它疾病，吃水果肯定不行，怎么做呢？ -6degrees- ♂ (0 bytes) () 12/19/2022 postreply 11:28:14