So, this is important for me to understand because when it comes to vitamins and such…this stuff can get confusing. I feel I need to better understand this…
So, this information is coming from a respected source: Dr. John Campbell of YouTube fame.
| IU | mcg |
|---|---|
| 400 | 10 |
| 800 | 20 |
| 1000 | 25 |
| 2000 | 50 |
| 4000 | 100 |