I find if you assure someone who wants to try LC/Keto that they just need to prepare for being unhappy about it for about three weeks -- they're going to crave carbs, they're going to crave grains and possibly dairy, they may be low on energy, it's going to be genuine work to eat sufficient good fats to give them energy, and the whole thing is a big change -- if they accept this up front, and you get them to understand: just 3 weeks. You could do anything for 3 weeks. Try it for that long, and then if you decide you don't feel any better, oh well you tried.

If people don't go into LC knowing this, usually after some time of everything from induction flu to low energy to really missing, horribly, the grains/sugars/dairy/etc. they're used to, they just feel like, "This sucks!" and they ditch it. If one can get them to the 3 week mark when generally they will have shifted to ketogenic, their energy will be higher, they'll have had some time to adapt to the different eating, and they'll likely have lost weight just from the carb water drop so they'll feel better (and have scale results) from that -- the chances of their success are higher.

PJ