Does a low thyroid affect the liver?

My fiance went to the doctor and found out that he has a large amount of fat in his blood and his liver is over working itself. He has hypothyroidism (low thyroid) and has been off of his thyroid pills for 6 months. He may have high cholesterol, which is affected by the thyroid. Do you think the problems with... show more My fiance went to the doctor and found out that he has a large amount of fat in his blood and his liver is over working itself. He has hypothyroidism (low thyroid) and has been off of his thyroid pills for 6 months. He may have high cholesterol, which is affected by the thyroid. Do you think the problems with his liver are a result of his low thyroid?

They also think he may have diabetes due to his symptoms. Would a low thyroid have any affect on this?
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