I read a book about dry fasting which stated that consuming salt in the first 3 days after you break the fast can be dangerous?
I wanted to replenish my electrolytes levels, and salt seems like a savior?
No salt is not dangerous to break a dry fast with. I’d start with 1l of spring water with baking soda to realkalize your kidneys (They get acidic during a dry fast) then take a shot of pure lemon juice for the high vitamin c content and astringent properties. The citric acid in lemon juice helps prevent any kidney stones from forming.
Keep in mind that you need sodium, magnesium, and potassium in proper ratios to correctly adjust electrolyte levels. If you get too much of one, then it can screw things up. These things can be found in your food. As you get back into your routine, your body will replenish its electrolytes. I wouldn’t worry about it.
[As an aside, drinking a saltwater solution is a known method of suicide in some cultures. I would advise against drinking salted water. If you drink it slow enough, it might be fine, but one should probably exercise some care. Even if it hasn’t been fatal to drink salt water solutions so far, who’s to say it hasn’t caused damage that is harder to perceive?]https://jamanetwork.com/journals/jama/article-abstract/432977