I was visiting the doctor 1-2 times a year for a bronchitis infection. After I began taking high doses of vitamin D, I went eight years without bronchitis....I had bronchitis after a plane visit to LA for Christmas last year. That's one doctor visit for bronchitis in nine years. I credit that good 'run' to the vitamin D.
BTW, I got a Prevnar-13 shot today. All other lab 'vitals' are within accepted ranges. I'm healthy for my age, etc.
They gave me that shot too. I started taking Vitamin C 2,000 to 4,000 mg per day years ago, as well as a lot of other vitamins and minerals, including about 2,000 IU Vitamin D. I also used to get sick a lot and now rarely do even with considerable stress. The body burns up C in 5 or 6 hours, so I take it 3 or 4 times a day in divided doses. What most people don’t know, including doctors, is that most animals that make their own C make a by weight equivalency to 2 to 4 grams compared to human size. And then the government tries to say 60 mg. is the RDA. Well, it is enough to prevent scurvy, but not promote good health, especially in cities with air pollution.