You will…Just remember: salt and water. Both are equally important to proper hydration. Buy some pink himalayan salt now, and salt all the things. Put it on food. Put it in water. Eat it straight if you have to. As you start to lose water weight, you’re going to flush out your electrolytes. If you don’t start to replace them, you’re going to know it very quickly. The keto flu that people refer to is mostly a combination of dehydration and a cold turkey approach to carb addiction. Choosing to binge right before this hard break is already going to bring about unavoidable things like increased hunger and cravings. That sucks, but you can power through it. However, carb-loading will also increases water retention, which means you’re going to have all that much more water rush out of your system in the next few days. Best case scenario: That’s going to make it much more difficult to not feel real shitty.
So, start taking salt and water like you life comfort depends on it.
Also, the salt should provide enough electrolytes for you, but I always recommend that people grab a bottle of chelated magnesium when they start keto. There is absolutely nothing worse than waking up in the middle of the night with both legs cramped up, and absolutely refusing to cooperate. (Protip: If this happens, it’s a sign that you’ve hit E on your magnesium.)