A guide to Paleo.
Previous post was meant to say, my tablet can't handle multiple links in one post.
Essentially, Paleo seems to be closer to regular low carb/keto. It allows higher fat but requires more restrictions on carbs, especially fruits. Primal doesn't specifically restrict fruit, it does just point out that if you are trying to lose weight they may impede your progress. I'm losing weight just fine while eating plenty of fruit. Lost 5 lb in January, & I had a few days in bed due to not feeling well.
Primal allows dairy (preferably unpasteurised) if you can digest it ok. Most paleo guides don't.
Paleo seems mostly concentrated on the diet side of things. In contrast Primal is a whole lifestyle, it encourages you to think about having good sleeping patterns, exercise (not just how much but when & what type you do, sometimes less is more, rest is important). Relaxation is important, getting lots of fresh air, natural light, etc.
Not sure about paleo, but Primal specifically allows for you to take time off from the diet every so often. 80/20 is how they describe it. Stick to it 80% of the time. If you allow regular "treats", you will be less likely to blow it & give up.
I tried keto, a few years ago. Totally couldn't manage it, I felt really ill. Ketosis doesn't suit me at all. But I've stuck to this just fine. There's no requirement to aim to be in ketosis on Paleo or Primal, as you are supposed to eat lots of veg on both (especially primal) although it's an option if you want to.