This is one of the most common questions people have when they start keto — and it's a great one, because the honest answer is: ketosis feels different at different stages.

In the first few days, ketosis can feel pretty rough. Headaches, fatigue, brain fog. Not exactly the glowing transformation some people expect. But push through that initial phase, and many people describe a shift that feels genuinely different to anything they've experienced on a standard diet.

Ask anyone who's been on keto for more than a few weeks what surprised them most, and energy is almost always in the answer.

But the energy story on keto is not the simple, linear 'you'll feel amazing from day one' narrative that some advocates push. It's more nuanced than that — and understanding the full picture makes the difference between giving up in week two and discovering one of the most significant energy upgrades of your life.

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?