My issue with Vitamin E supplements is that virtually all of them are derived from soy, which some studies have implicated in bloat. While there are opposing studies that found no correlation between the two, I tend to be overly cautious considering I have a family of GSDs – a breed that is already prone to bloat. Dr. Mercola’s Vitamin E supplement is (or at least claims to be) soy-free, but the cost is ridiculous. It’s about $25 for 30 capsules, which seems expensive even compared to what we pay for Instinct LID kibble.
