PPIs are more powerful and common, but H2 blockers can also affect vitamin B12 absorption
Observed side effects in research settings are generally mild and may include temporary nausea-related observations, flushing-related observations, headache-related observations, fatigue-related observations, administration-site irritation, pigmentation variability, pigmentation variability involving freckles or moles, and temporary appetite-related response variability depending on research amount, UV exposure, administration frequency, skin type, and individual physiological sensitivity
(10) While more research is needed to help us understand exactly what these effects are, one thing we do know is that intermittent fasting offers many of the same benefits as GLP-1 when it comes to supporting metabolism, blood sugar control, and weight loss
From an experimental study using a mouse model of immunologically induced fatigue, Vij et al