The amount of vitamin c in foods is very small compared to what many here are taking, and what is optimum for detoxification. Even if one loads up on many high vitamin c foods, it is dountfull they will get more than 100 mg a day of vitamin c. Many here are taking between 2 and 10 grams a day of vitamin c, with is 20-100 times what you could probably get from food. Vitamin c and B vitamins are cheap. In the US for ecample, one could probably get a hundred one gram vitamin C tablets for under $8, and a hundred B50 tablets for under $5. While prices might be somewhat higher in the UK or elsewhere, these supplements are inexpensive and definitely worth taking. Some other supplements are expensive though. Before dental work you shouldn't load up on high vitamin c foods like citrus fruits, or broccoli. How many amalgams do you have?