““5. The Salt Paradox When the human body adapts to a low carb diet, the kidneys fundamentally change how they handle sodium. Removing most carbs from the diet causes your kidneys to aggressively secrete sodium (and along with it, extra fluid). This is why many people experience a dramatic early weight loss with carb restriction. But this means that a continuous moderate intake of sodium is necessary to keep your circulation adequate to handle ‘heat stresses’ like hot weather, endurance activity, or even a hot shower. If you are eating less than 60 grams of carbohydrate per day, you need to purposefully add 2-3 grams of sodium to your daily intake (unless you are still taking diuretic medication under a doctor’s direction for high blood pressure or fluid retention).””