The reason your vegetables and animals improved so much with the addition colloidal silver is because the animals feed and the gardens soil is deficient in the required minerals!
The horses have access to a good mineral block as well as a salt block, also they are given a mineral supplement. My pasture is green(I don't put silver on the grass), everything grows well. I lime the garden also I use a high quality organic fertilizer on the vegetables. So if the soil and animals are deficient in minerals, I would be hard pressed to figure out which one. I'm not talking about hugh amount of colloidal silver here, I talking about small amounts, a few tablespoons in a 50 gallon water bucket for the horses, a half a teaspoon in the chickens water, and a tablespoon in a couple of gallons of water for the dogs. I'm not sure how much I put on the plants. I use more of it than everything else put together. The colloidal silver has improved my health, so I say the proof is in the pudding or in my case the egg yolk.