Regualar tap water has a PH value about 7.0 and has many dissolved minerals, some floride and a pinch chlorine, it is already saturated thus less likely to absorb as much stuff as distilled water. You are correct and more. Blood is over 90% water. PH levels in Blood must be between 7.35 tp 7.45... any value close to above or below causes many side effects such as feeling ill, lowered immune systems and/or letting the parasites in us over grow, try to escape or die. Rotting parasites' bodies get our hosts bodies quite sick. All living beings have parasites. To demonstrate: A salt water aquarium with bad levels of PH will cause all creatures swimming in it to get very sick and/or die as the parasites try to escape the host body and the bad water. Germs, bacteria... We are what we eat and swim in, LOL... PH 7.40 must be in us as well as fishes and the sea, God our Creator is not an idiot. Eat high alcaline foods to combat the acidic stuff advertising is force feeding us, a list can be easily found on the internet. Clean detox your body at least every six months. When will we learn and know more about our own bodies? The time is near. May Gods help us, may Gods protect us all. Peace.