Metagenics is a good company. I do not think the 10,000 iu a day will be too much even if you are 110lbs. If it makes you hesitate then stick to the 50,000 iu a week and add an extra 5000iu twice a week. Even on the 50,000 iu a week you will get better. After you are better make sure you take a maintenance dosage or your levels will plummet again.