For example, 3,000 IU of vitamin A (as retinol) is 900 mcg RAE. About 18,000 IU beta carotene, which is less potent than ...

Dear E.G.: It sounds like what you are doing is working since you haven't developed diabetes. However, I can't make any ...

Dear Dr. Roach: How effective are COVID vaccines for people taking immunosuppressive prescriptions? Will we be tested for a desired level of antibodies? — C.J.

Dr. Roach writes: A recent column about a woman on warfarin who was constantly cold generated a lot of letters, most of which advised turning the thermostat up — noting that 69 degrees ...

Dr. Roach: I was vaccinated as a child with the combination MMR vaccine. My husband and I are expecting a new grandchild. My friend advised me that we, as elder ...

Dear Dr. Roach: Seniors are advised that one of the best forms of exercise is walking. The advice is to “walk briskly” for at least 150 minutes per week. There are those of us who, because of ...