kelp? anyone tried this?

I used it for a little while (sea kelp) because a hairdresser told me that it was good for the hair?! Not sure whether it worked or not though.

Kelp is good stuff, in moderation, in it's whole food form. Skip the supplements. They're not regulated or tested, and kelp (a sea vegetable) can have high levels of arsenic, cadmium, mercury and other heavy metals. Kelp, in its whole food form, is high in iodine, which supports thyroid function and metabolism. But supplements are highly concentrated, and can trigger autoimmune thyroid disease and hypothyroidism (which slows your metabolism). Almost impossible to do with the real stuff, but supplements are risky.

You can buy sheets of dried kelp in most whole food stores. Tear off a few strips and add to soups a few times a week to get the metabolism-boosting benefits, as well as phytonutrients, calcium, magnesium.

Here's a quote I love from Marion Nestle, a NYC nutritionist
"The problem with nutrient-by-nutrient nutrition science is that it takes the nutrient out of the context of the food, the food out of the context of the diet, and the diet out of the context of the lifestyle.”

I would check your thyroid before taking kelp with the doctor, just from experience. I have Graves disease and was gulping down kelp which sent my thyroid sky high, I didn't lose weight but felt very tired, the specialist said I was like a car revving but not going anywhere.
If you have a normal thyroid then it should be fine, its always good to get your thyroid levels checked out anyway.