Lithium Orotate by Seeking Health provides 5 mg of lithium (as lithium orotate) per vegetarian capsule. Lithium orotate is a natural substance that consists of lithium (an alkali metal) and orotic acid, a transport carrier for lithium that may help increase its bioavailability*. Lithium orotate can be taken in small doses due to its high absorption rate, as opposed to the popular lithium carbonate which is required at much higher doses and can have adverse effects. Lithium is known for its benefits in supporting neurological health.*