★★★★★
(1) Our human cells have lots of catalase, and this enzyme decomposes h202 right away when the chemical enters the body, releasing oxygen and water.
(2) Also, the h202 stimulates the enzymatic system in the body to produce many more times oxygen than that released by the intake of h202 alone.
(3) Read more brother on the scientific studies behind h202 in the body, and do not just use logic and frighten the masses with your chemistry knowledge of h202 being a powerful corrosive oxidant.
(4) But you are right in your logic for some animals though. Some domestic animals have low catalase in their bodies and will die quickly if they drink even a bit of 3 percent h202.
Read the book and find out which animals. Do your homework.
PEACE