Thank goodness for this iodine supplement! Without it and my Solgar liquid vitamin B complex supplement my body would just shut down and have zero energy. I emailed J. Crow for dosage intake and I'm quite certain due to legalities they are unable to offer proper dosage recommendations. I was suffering from sleepless nights until I increased my dosage dramatically. Please read, “The Guide to Supplementing with Iodine” on Jeffrey Dach MD dot com. When I increased my intake to 25 drops per day before 2pm I began feeling MUCH BETTER and began sleeping soundly. Please follow the directions in the article because you may experience some detox symptoms during the beginning higher dosage intake. I only experienced one day of detox symptoms which included nausea. I drank warm Celtic sea salt water and the symptoms subsided pretty quickly. In the article I mentioned you'll be guided to take a selenium supplement together with iodine because they work synergistically. I order selenium by the brand, Solgar, and it works well! So many people are iodine deficient and they don't even know it. I'm so glad I discovered this and I am taking it regularly. It truly makes a big difference in my energy and well-being! I also had to address the fact I had adrenal fatigue to further sleep and feel better. Look this up too in case you have its symptoms. I modified my diet and now take a 1/2 teaspoon of Ashwaganda (Winter Cherry) in the evening to quell my adrenal fatigue