Zesty Paws Lysine Immune Bites Salmon Flavored Soft Chews Allergy & Immune Supplement for Cats, 60 count; With its multi-system support, the Zesty Paws All Ages Lysine Immune Bites Salmon Flavored Cat Supplement can help to keep your feline friend feeling purr-fect. This one supplement supports your kitty’s immune, digestive and histamine health. L-lysine supports your furbaby’s immune system response and promotes the healthy eye function she needs for her cat-like reflexes. Astragalus root powder promotes a healthy immune system to keep kitty feeling paw-some. These tasty bites are easy to feed.