I read page 14, but didn't look any further when @ the bottom of the page was-
AND FIX ALL YOUR PROBLEMS WHEN YOU BUY MY SUPPLEMENT

Yes, It does sound good in theory, but...

When do you test your soil, spring,summer,winter,fall
or during the drought or the rainy season.
or where fertilizer and good forage are or the scruffy area of the field thats all weeds.

Ok, fields been tested...
What about;
The commercial feeds and the amounts in them
The other suppliments and amounts in them
The quality/type and location of the hay supply

Then, If multiple horses are living in the same field, which horse do you test...
As they all weigh different amounts
Are different breeds
Are different sexes
Are different ages
Are performing @ different workloads
All metabolize differently
And are being feed different supplements for different reasons

It seems as though it's just another way to try and scare us into buying yet one more un needed product, to many outside variables not discussed for me.