Join the 'Vitamin K1' group to help and get support from people like you.
Vitamin K1 Support Group
Our support group for Vitamin K1 has 6 questions and 5 members. Updated 14 Jan 2015.
WEDNESDAY, May 13, 2015 – A cheap and easily available vitamin supplement appears to reduce a person's risk of skin cancer, new research contends. A form of vitamin B3 called nicotinamide is linked ...