The 5Strands Standard Package Pet Food & Environmental Intolerance Test looks at 380 pet food ingredients and environmental intolerances. When you receive your results you will get an instant elimination guide that will help you find any intolerances you can get rid of immediately.. Whether it?s scratching paw-licking irritated ears or wiping eyes there?s going to be something you?re unaware of that?s affecting your dog or cat. 5Strands makes it simple to discover the truth about what your precious furry friend is dealing with.