I plan to start dog cookies home business.
I want to use natural preservatives like vitamin E, vitamin C and rosemary extract to prolong the shelf life of a cookie.
Tel me how much of vitamines should I put in a 100 pounds cookie mix .

Here is a website
Natural Food Preservatives

I also found this site but have no idea how natural their products are
Natural food preservatives, Natural food preservatives Manufacturers & Suppliers


These are things to avoid make sure they are not used in the natural preservatives you use

Message, Calcium Stearate, Magnesium Stearate,
Microcrystalline Cellulose or Cellulose, Sorbitol, steraic acid, sodium benzoate, Phosphates, Calcium Citrate or Magnesium Aspartate, Ascorbate, Malate, Titanium Dioxide, Silicon Dioxide (fumed Silica), Talc, and Silicates, Ascorbyl Palmitate.
I think there are some others but these are all I can remember.

Also never feed your dog
1. Garlic
2. Onions
3. Raisins/grapes
4. Chocolate
5. Alcoholic beverages
6. All By-Products
7. Peppers
8. Pork
9. Corn
10. Ketchup/Barbecue Sauce


Dogs need essential fatty acids like omega so avoid hydrogenated and transfats.