Since the contribution of minerals from water to your daily recommended allowances of minerals is near negligible, so is the effect of remineralizing RO water. The only genuine benefit of remineralization is that, since RO water is very pure, it can taste flat or empty to some who are used to drinking mineralized water. It’s not that RO water tastes bad – it technically doesn’t taste of anything since there are no minerals in it – it’s just that some prefer the taste of water with minerals.