How do you determine how much you need to take.
I have read the book Practicing Medicine without a license
I am 68 Years old, 5'10" and weight 210 lbs
Good question. I would start with this protocol to help us determine your vitamin C bowel tolerance
http://www.vitamincfoundation.org/forum/viewtopic.php?f=10&t=8026
When you have a general idea, we can recommend products.
In my case, for example, I can and do take around 20,000 mg daily. I have a high bowel tolerance. I have no signs of heart disease.
My own father could only tolerate 200 mg, and died of heart disease a lot younger than he expected (didn't smoke or drink). If the well absorbed liposomal vitamin C were available, he might have lived a lot longer.
So there are more options today to get the equivalent of 10,000 to 20,000 mg of vitamin C daily.
With an excellent diet (low sugar, no trans fats, few manufactured foods) you can apparently get by on less vitamin C daily.
Factors such as high blood sugar (diabetes), toxic dental work, and we now think high iron (ferritin) will interfere with vitamin C therapy.
So we always return to Linus Pauling's general recommendations.
6 - 18 g of vitamin C, and 2-3 grams of lysine for prevention.
5-6 grams of lysine he recommended for those with diagnosed CVD.