USANA is a large supplement provider. "Nutritionals you can trust"
They do not appear to sell 5,000 IU capsules, yet their chart shows that 5,000 is how much many people need
There have been several reports of problems with vitamin D in solid tablets - about 1/3 the benefit as capsule form
But, the chart below implies that USANA solid tablet is OK
This assumes that most of the USANA customers were taking USANA supplements, and not just those at the left side of the graph.
Note the great number of USANA customers taking 2,000 or 4,000 on the graph.
This correlates with USANA selling 2,000 IU tablets
USANA "continues to recommend that supplemental vitamin D in the range of 2000 to 4000 IU per day is much more appropriate for maintaining overall health."
- CLICK HERE for more dose/response graphs
- Is 50 ng of vitamin D too high, just right, or not enough