It is the most potent natural immune system booster known to science. (naturemoms.com)
Some of these, such as immune system boosters, directly address one of the major senior cat health concerns, and often provide additional protein, vitamins, and antioxidants for your cat. (cat-lovers-only.com)
What's more, they are also good for the gut and are great immune system boosters. (healthcare-online.org)