Iodine supplementation

Hello,

I just saw that I have to take this list of supplements when I take Iodine :


- Magnesium – 400 – 1200 mg per day
- Vitamin C – 3,000 – 10,000 mg per day
- Vitamins B2/B3 (ATP CoFactors) – 100 mg riboflavin and 500 mg no flush niacin, inositol hexanicotinate form, 1-2x per day





- Can I take magnesium as magnesium sulfate (epsom salt) ?

- Same question with vitamin C, (acid L ascorbic ?)

- Can I buy vitamins B2 and B3 separatly or should I take something like that : http://www.amazon.fr/Optimox-Corporation-ATP-Cofactors-Tablets/dp/B00YHOWBFC/ref=sr_1_2?ie=UTF8&qid=1434994900&sr=8-2&keywords=cofactors

It's a lot more expensive, is there any reason ?

Thanks Tweet