If you've spent any time in the health and wellness world, you've almost certainly come across both keto and paleo. On the surface, they look remarkably similar — both cut out processed food, both emphasise whole foods, both avoid grains and refined sugar. So what's actually the difference?

If you've been on keto for a few weeks and started noticing something different about your skin — less breakouts, less redness, a general kind of glow you can't quite explain — you're not imagining it.

It's Friday night. Your friends are ordering pizza. You've been strict on keto all week and you're feeling good — but also really, really want a slice.

So the question forms: 'Can I just have a cheat day? Would one day really undo everything?'

It's one of the most common questions in the keto community — and the answer is more nuanced than a simple yes or no. What actually happens when you eat carbs on keto depends on several factors: how long you've been keto, how much you eat, what you eat, how fat-adapted you are, and what your goals are.