Here you are, all excited because you’re starting a new diet and are thinking just how great you’re going to feel now that you’re taking a directed approach to eating in a healthy way designed to help you lose weight quickly. But you’re not feeling well. You’re feeling worse than when you began.
Chances are you’re suffering from what’s called, ‘Keto Flu.’

Keto flu occurs to almost everybody to some extent about 3-5 days into the Keto Diet. And while some people might feel terrible, most people will experience only a few symptoms. The good news? You can make yourself feel better.
What does Keto flu feel like?
- Feeling tired
- Dizziness
- Headache
- Easily irritable
- Hungry – craving sugar
- Brain fog
- Nausea
- Muscle cramps
- Feeling like you lack motivation
So, what can you do about? Thankfully you don’t have to suffer through. Most of the symptoms are easily treatable. How?
Start by drinking a lot of water – and adding in some salt. Why the salt? Chances are you’re using the bathroom a lot more as your body goes into ketosis, so you’re being depleted quickly. So drink more water – a LOT more water – and be sure to include some salt. That might mean drinking bullion. Or simply adding a teaspoon of salt into a glass of water and drinking that.
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Increase your fat intake. As your body adjusts to taking your energy from fat, you’re going to need a little more initially. This leads to another thing that might help – eat more. Don’t worry about amounts initially, let your body be your guide. Select items from your allowed food lists and enjoy them as much as you like. As your body adjusts to the changes, it will eventually want less food, and you’ll find yourself cutting back naturally later.
Cut back physical activity. Because you have less energy, it’s better to take it a little easier until your body gets used to things. Go with yoga, stretches, gentle exercise. You will have more energy than ever before in a few weeks – you can challenge yourself to that half-marathon later. Right now – go easy on yourself.
Put the brakes on things. It might be that you need to add in a few more carbs in the first weeks to ease the transition. There’s nothing wrong with increasing them a little bit. But don’t go crazy. The whole point is to knock out those carbs, remember?
Keep in mind that keto flu doesn’t last forever. It’s just a phase you’re going through as your body adjusts to a new way of eating. Be patient and give yourself some time to get on track, and you’ll be feeling better than ever before you know it!
