I started a keto diet and then switched to low carb. Despite the excellent weight loss, I started having insomnia, irritation and high cortisol. I also did intermittent fasting. I was intrigued to see my exams improving and me losing weight, while losing sleep and being irritable all day. After a while I discovered that the secret to staying on keto/low carb, without major problems, is electrolytes. You need electrolytes and this formula gives you that boost to go through the day like a champ. Remember, if this formula is not enough, to supplement potassium, magnesium and increase the salt (yes, increase the salt, to obtain sodium). You need (depending on your activity level) 4700 potassium and 5000 to 7000 sodium; magnesium, about 600 a day is fine. But this product already gives you a fantastic boost. Start your day with two and take four more during the day. Try one before bed, and if you wake up in the middle of the night, take one or two to see how your body reacts. I hope I can help those who, like me, took a long time to discover the "magic of electrolytes".