Are you noticing big clumps of hair in your shower drain? More than usual in the brush? Does it look thinner than usual? Maybe you're even noticing bald spots. The reason might be as simple as iodine deficiency.

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Cover image via Imaxtree

We all know that iodine is added to our salt, but why? Time for a quick science lesson. Iodine is an essential mineral and your body doesn't make it on its own. It's necessary for making thyroid hormone, which regulates healthy weight, keeps you warm and many other jobs, including keeping your hair healthy.

Thyroid hormones are responsible for generating the hair follicles. If there's not enough iodine, there are not enough thyroid hormones, and your hair follicles are not regenerated. Lack of iodine can lead to hair loss, premature grayness, thin hair and dry hair that breaks easily. Yikes!

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There are lots of reasons for iodine deficiencies. Vegans and vegetarians are more likely to be low in iodine. Because of over-cultivation, micronutrients that used to be found in our crops are now lacking. This, combined with people using less salt overall and many switching to sea salt, which is not iodized, is creating an iodine deficiency in more and more people.

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If you think you might have an iodine deficiency, it's smart to go get a simple blood test at your doctor's office to make sure. If you'd just like to increase your iodine intake, here are some easy ways to do it:

1. Seaweed — So good for you overall, packed with fiber and vitamins and minerals, this one should be an easy addition to anyone's day.

2. Sesame seeds — Add to the tops of salads, chicken or throw some in your smoothie.

3. Shrimp and oysters — Did someone mention scampi?

4. Dairy products — Milk, cheese and yogurt are all good sources of iodine. Also, now you really must have that ice cream.

5. Garlic — A super anti-inflammatory that gives yummy flavor to any savory dish.

6. Eggs — Lean protein and iodine? Sign us up. It's important to know, however, that the iodine comes from chicken feed that has iodine in it, so iodine levels vary.

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It's important to know that overdosage of iodine can cause serious health problems, so don't self-diagnose or add supplements without consulting a doctor.

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