Can protein supplementation make my blood pressure high?

It is possible.: It depends on what you use to do it. If you use a formula to bulk up, or pills, it is very likely that this can happen. There are all kinds of things in these, and they are not necessarily good for you. If they put on weight, they likely will raise your BP just from that. A lot of the so called proteins are likely synthetic and concentrated, which can cause fluid to enter your vessels and ^bp.