Does caffeine effect NOS Precursor?

[fatburner2007]

Noticed in the write up on NOS Precursor it indicates to limit caffeine to 100mg per day to increase the effectiveness.

How much does caffeine impact NOS Precursor say if you are also taking a thermogenic product?

 

[Chuck Diesel]

caffeine constricts blood vessels. I would limit caffeine as in not start some high caffeine products at the same time.