Not a significant concern because it's what your digestive system is designed for. Pulling out the materials it needs from a slurry.
Deinionized water on the other hand immediately chemically to pull in ions. So same action, but with a more powerful mechanism. You'd probably have to drink a lot of deionized water to cause issues, plus water reionizes pretty quickly in air, and it takes terrible.
There is no consensus [1] except that exclusively drinking demineralized water could cause issues. So like everything moderation matters. I only use it for drinking water not cooking for example.
Deinionized water on the other hand immediately chemically to pull in ions. So same action, but with a more powerful mechanism. You'd probably have to drink a lot of deionized water to cause issues, plus water reionizes pretty quickly in air, and it takes terrible.