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Neither is a hormone

For this reason, the NIH has not established a tolerable upper intake level for B12

Research suggests that deficiency of vitamin K may also weaken bones, potentially contributing to osteoporosis, and may promote calcification of arteries and other soft tissues

Some people experience feeling worse after receiving a vitamin B12 injection, which can be disconcerting when you expected improvement

However, some studies suggest that glutathione may influence hormonal balance in several ways: Oxidative Stress and Hormonal Function: As we mentioned earlier, glutathione plays a critical role in combating oxidative stress, which can adversely affect hormonal function