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4 Subtle Signs of Iodine Deficiency That Show Up in Your Skin, Hair & Nails

Kait Malthaner (BSc Nutrition & Exercise)

753,322 views

Are your skin, hair, or nails trying to tell you something? These 4 subtle signs of iodine deficiency often show up on the outside before you ever see it on a blood test. In this video, I’ll break down how to spot the early warning signs of low iodine, why it’s so common (especially in women over 40), and what you can do to support your thyroid and metabolism naturally. Plus, I’ll share the iodine supplement I personally recommend and how to use it safely.

Iodine I recommend https://hckait.com/iodine
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Hi, I’m Kait Malthaner (aka Health Coach Kait)! As a certified health and nutrition coach specialising in blood sugar control and reversing insulin resistance, I’m here to simplify your health journey. My videos cover topics like lowering blood sugar, A1c, and blood pressure, reversing insulin resistance and PCOS, weight loss, abdominal fat loss, and more. Getting healthy doesn’t have to be complicated—small changes lead to big results. Start reversing insulin resistance with me today!

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0:00 Intro
1:18 Why iodine deficiency is so common
3:51 #1 You’re always cold
4:38 #2 Vertical ridges on your nails
5:04 #3 Thinning hair
5:44 #4 Dry or puffy skin
6:28 Solutions

Disclaimer:
This video is for general informational purposes only and should never be considered a substitute for professional medical advice. Always consult your doctor or a qualified healthcare professional for any questions about your health or medical condition. Some links above are affiliate links, meaning I may earn a small commission at no extra cost to you. I only recommend products I use, trust and love.

20 Comments

@HealthCoachKait Creator 1 year ago (edited) Pinned

NEW VIDEO on the top 10 iodine-rich foods you can add to your diet (seafood and otherwise). Watch this next 👉 https://youtu.be/HUhQO1q8TEo

And a quick recap on today’s video...

#1 You’re always cold
#2 Vertical ridges on your nails
#3 Thinning hair
#4 Dry or puffy skin

And then we get into the solutions! Have you ever had your iodine levels tested?

@jenarutberg9323 4 months ago

My first doctor, many many decades ago, used to check your nails when you visited to help assess health no matter why you were there. He also would come to our house if need be especially when the whole household had come down with something. Now the doctors barely look at you and prescribe pills to stop a symptom without bothering to figure out the cause. It's not really health care that way, it's symptom abatement.

@FaYT02 1 year ago

Everybody is low on iodine today. It is especially important for women.

@kathyfrancis9229 10 months ago

Ive had ridges on my nails for years and my hair is falling out.

@truthfire8077 1 year ago

I've had vertical ridges on my nails for as long as I can remember!
I've changed my diet and that helped with being cold all the time, but I never knew about vertical ridges until today being a sign I'm still iodine deficient!
I also heard that if your tongue has waves or indents on the edges of your tongue, that's also a sign of iodine deficiency.
Which I have, as well!
It's crazy how piecing together certain things can help us on our journey to health!
I've lost confidence in the health care system because they don't want to look at root causes. They just want to prescribe pills for a symptom you present.

@meldel77 1 year ago

Wow, I thought it was my iron deficiency. But after receiving iron infusions, I still have these symptoms. Going to look into this now, thank you for this!!

@MCTobiasz 1 year ago (edited)

Any pro iodine video I am commenting on and thumbs up! Doctors are clueless. It's not even in a standard panel anymore and it's essential for the thyroid. For me it's up there with water and oxygen. It serves even more w for women. It took away lifelong brain fog. Fixed my hormones, sex drive, I can eat gluten/ anything now that made me sick before.I couldn't drink, I can drink now. Iodine, I could go on. (I take min. 3 drops/2 mgs, laltely 4-7 mgs)

@MajaRoxy-h8w 1 year ago

If I start to have hot flashes, I increase my iodine and they go away. HRT helps, but the biggest difference for me is iodine.

@katpea3641 1 year ago

I started supplimenting iodine a year and a half ago. I take iodoral 12.5 milligrams of iodine/iodide, the first time in 14 years my latest mammogram came back that I no longer have dense breast tissue!

@hannahm.9881 1 year ago

Darn my nails and hair have always sucked. Everyone screams Iron and Vitamin b. But it's never helped.

@payattention31 1 month ago

I never heard that vertical lines on your nails means lack of iodine. Thank you. I'll work on that.

@velvetindigonight 1 year ago

Thank you! You are the first to tell me that the vertical ridges on my nails are related to iodine deficiency. I have the other symptoms too… and despite doing carnivore with subsequent health benefits my energy levels never returned to what they used to be…
Im 68 so better late than never
And obviously I didnt eat much sea food ever…
The advice in the 1980’s was no salt, cholesterol (eggs, butter, red meat) and eat loads of carbs no wonder in the 1990’s I was diagnosed with an underactive thyroid…
Hope this reaches everyone who needs the info
Thank you
Life changing (hopefully) x

@rdreese84 1 year ago

It's also important to get your RDA's of magnesium, selenium, and zinc. Especially selenium, this mineral helps reduce thyroid inflammation as it produces thyroid hormones.

@LisbetBruel-sq7je 1 year ago

I started taking iodine about 6 months ago and my nails which were so ridged they would split length wise ! When I started with the iodine my nails grew out smooth and so nice!

@DmHarsh-s8e 1 year ago

Just want to say thank you for this video. It showed up on my landing page at the right time. My nails were always smooth & would grow fast, that I would need to file at least once a week. For a while now, I've started having ridges in my nails and could not figure out the problem. My diet has not changed from meat-based, but the nail issue continued. I added collagen powder to my coffee with no change. Then I saw the title of your video and stopped scrolling to listen. And that was the problem. Iodine. I stopped the Lugol's drops a while back. This week, I started adding the drops back into my morning drink and what a difference it made. Noticed an improvement within the first couple of days. Most ridges are gone, except for the thumb nails. It feels so good to have smooth nails again. Thank you again for the video.

@violahamilton782 1 year ago

Thank you for the REMINDER! I was spending too much time trying to figure out why my hair was thinning and my nail ridges increasing, looking for all kinds of solutions, and my energy slowing. I had forgotten what I was missing, thanks again!

@amcm215 1 year ago

😮😮😮😮😮😮
Always cold especially my feet at night (they get ice cold and sometimes I can't sleep bc of it)
Vertical nail ridges since I was at least in my early 20's
Thin(ning), brittle slow growing hair especially around my crown since I was at least in my 20's
Very dry skin
Fatigue
I'm about to cry. Thank you so much for sharing. Some tests came back normal including for my thyroid. I had one doctor who said everyone's baseline for energy is different. I had another doctor who had me go to counseling because perhaps my fatigue and hair issues were stress and anxiety related. I had iron infusions because my iron fluctuates but it didn't help my fatigue when my levels improved. Other people that I spoke with have stated after a couple of sessions with the infusion they felt better and their energy was better and couldn't figure out what the heck was it is going on with me.
Sorry this is so long but I had to share. I'm ordering the drops!

@giseliapereira0 1 year ago

I can check all of the above. I also ordered the Lugol’s Solution a while back and I took it daily, then I got lazy and took it only when I remembered. Your video covered all the reasons why I should be more diligent with my iodine intake, thanks for that.

@fairenough7984 8 months ago

Some years ago, the "health care" industry encouraged us to eat less salt.
Salt was Iodized years before that, as an easy & inexpensive means of getting iodine into the masses of people.
It is so important to good health!
Salt is Not bad for us, and we should be eating Iodized salt, and foods with iodine, in order to reduce the potential for thyroid issues