Joint, skin, dental and digestive products, weighed against the evidence and the ingredient panel.
Only a handful of pet toothpastes carry the VOHC seal, and every one of them was accepted on the dogs list. Three worth buying, and who each is wrong for.
Most cat hospitals surveyed recommend lysine. Two shelter trials found cats fed extra lysine got sicker, and no trial has studied the cats who get it most.
Thirty-five dog chews carry the VOHC seal. Four are worth buying, and the deciding numbers are size, pack count and the calories taken out of dinner.
The strongest result is a shelter trial in cats. The bigger problem is quality control: only 4 of 15 tested products met their own live-organism claim.
No CBD product for animals has FDA approval, and AAFCO has no ingredient definition for it. Here is what that means for the bottle on the shelf.
Chondroitin has a fairly consistent number in the literature. Glucosamine does not, and most bottles are labeled by weight tier rather than by a trial dose.
Four joint supplements worth the money and one worth skipping the hype on, judged on the ingredient doses, the published trials and what the label does not say.
The useful number is combined EPA and DHA, and it scales to metabolic body weight. Most labels lead with total oil, which is the wrong figure.
One seal in pet oral care is awarded on trial data with a published threshold. Here is the threshold, and what a chew without it has demonstrated.
Pet supplements sit in a regulatory gap. One industry seal is the closest thing to a floor, and it is worth knowing exactly how low that floor is.
