My nutritionist (who I hired after my debacle at Boulder 70.3) is recommending them. She used some kind machine that tested the salt content of my sweat and declared me a high (i.e. salty) sweater. Then she compared my salt needs to a long list of products and indicated three that would be in line with my sweat; Precision Hydration, SIS, and EFS.
As a side note, I'd been using Infinit in the preset blend, which wasn't working; caused distended belly style bloating. In the past, I've used Skratch and Gatorade Endurance, both of which worked marginally better than the Infinit.
Anyway, going to try this stuff this weekend, but I'd never heard of it and wonder if anyone else has any experience (positive or negative) with it.
https://www.precisionhydration.com/
As a side note, I'd been using Infinit in the preset blend, which wasn't working; caused distended belly style bloating. In the past, I've used Skratch and Gatorade Endurance, both of which worked marginally better than the Infinit.
Anyway, going to try this stuff this weekend, but I'd never heard of it and wonder if anyone else has any experience (positive or negative) with it.
https://www.precisionhydration.com/