If tap water contains sufficient magnesium, filtering it for disinfectant byproducts and fluorides is adequate, and hydrogen enrichment is not necessary.

“If, however, the levels of magnesium in your tap water are not above that value that we talked about earlier in that case, I do think, and I can completely understand why enriching the amount of hydrogen in that water can make that water not only more palatable, right? Give you the sensation that it's softer or smoother or more enjoyable to drink than more acidic water would be. But also that that water is going to be far more effective in being absorbed and hydrating in the cells and tissues of your body, which turns out to be very important for an enormous range, perhaps every biological function within your brain and body.”