The reason why I switched to Atkins from primal/paleo is that it isn't so purist. I look at the big picture. Hellman's real mayonnaise is absolutely fine. Most mayos use soybean oil and have a little sugar in them. If you don't fill a dessert dish with it, you should be okay! Hellman's real mayo is officially acceptable for people who follow Atkins and South Beach, too, if I recall correctly. I live in the U.S. and we have Duke's here, which is awesome, but my backup mayo is Hellman's Real (no light, just regular). If there is a store brand of real mayo with essentially the same ingredients and carb total (which should be ridiculously low per serving), I wouldn't worry about it - especially if it agrees with you, adds pleasure to your diet/WOE and helps you stay on track.