Were any of the studies that found a benefit done with enteric capsules? Because my very lay/non-expert reading of the chemistry from this survey paper sure makes it sound like the neutralization effect producing CO2 in the stomach could be central to the process, and not something to avoid. My interpretation is that the massive neutralization "effort" takes the stomach chemistry out of homeostasis, and the chain of reactions the body uses to re-achieve homeostasis temporarily improves H+ transport out of muscle cells.

The Maurten/enteric theory makes it sound like what happens in the stomach is "negative side effect," and actually reduces the efficacy due to loss. I'm not totally convinced.

While admitting that the authors of the survey paper could be either wrong, or I'm reading it incorrectly.