Vitamin C boosts immunity system,
Vitamin C is great antioxidant,
Vitamin C prevents from cardiovascular disease,
Vitamin C lowers blood pressure,
Vitamin C fight and prevent against cancer,
Vitamin C makes bones strong.....
Vitamin D3 is really better for your bone and stomach health it is also best for old people.because in age part many peoples bones weak due to lack of D3.
but best suggestion for you that you ask with your DR or senior orthopedic
Hello.I take 2000 iu a day. My Dr.said In the winter when your not getting much sun to take 2000. Than you can lower it to 1000 in the summer. But safely still take the 2000 if you'd like to,in the summer. Hope that helps.