With the lactase tablets and capsules, we have different strengths available. This strength is expressed in FCC per capsule. You can choose from 2500, 10,000 and 20,000. If it is your first time trying one of our lactase products, we generally recommend trying one of the higher strengths first, for example the 10,000 or 20,000. Starting higher will give you a clearer indication of whether it will work well for you or not when you first try it. At a lower dose, it may be unclear if it helps or not, or it may be that the dose wasn't high enough. If you have a milder degree of intolerance or only want to use the capsules or tablets for smaller amounts of lactose, you can choose the 2500 tablets. If you are more sensitive to lactose or want to consume larger amounts of lactose you may want to choose the 10,000 or 20,000.