Does anyone know anything about hypothyroidism in older dogs? We are getting Tiffy tested for this because one of her thyroid blood panels came back at 5 when it should have been closer to 9. (This could explain her lethargy, depression, disinterest in eating, wanting to sleep more, etc.) Are there dietary things that we can be doing to bring the thyroid function back up? When human thyroid function is borderline, kelp supplements can often do the trick. Also with humans, once you start taking thyroxine or synthroid, the thyroid generally stops producing hormones and you end up having to take the pills for the rest of your life. I don't mind putting Tiff on the thyroid, but I want to consider other alternatives, too.