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Nature-Throid and Hair Loss: What Users Say

Hair loss: mentioned by 14 users (19.2%)

Based on user experiences from 73 Nature-Throid reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

hair loss 19.2%
weight gain 12.3%
fatigue 11.0%
brain fog 8.2%
joint pain 6.8%
headaches 5.5%
tiredness 5.5%
chest pain 4.1%
depression 4.1%
weakness 4.1%

Reviews for Nature-Throid

Commonly mentioned side effects
  • Tep...
  • April 19, 2017

For Underactive Thyroid "I have been on Levothyroxine for over 20 years. I had normal levels for years on my meds yet felt like crap! No energy, severe joint pain, almost debilitating at times, weight gain, hair loss, dry skin, trouble sleeping. I begged my doctor to change my meds. She switched me to Nature-Throid and only after a week, I feel so much better. Joint pain is almost totally gone along with feeling way more energy. I cannot wait to see what I feel like a month from now. I feel like I've gotten my life back!"

9 / 10
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110 Report
  • Mam...
  • Taken for 10 years or more
  • February 26, 2019

For Hashimoto's disease "I have used Nature-Throid for 15+ years very successfully, that is until the 'Great Back Order of 2017'. I scrambled and panicked and found enough at other pharmacies until it came back in early 2018. My question is: WHAT DID THEY DO TO IT? Hypothyroid symptoms returned with a vengeance, I have gained 30 lbs since last January, have lost nearly all of my eyebrows, ache all over in my joints and muscles, can't think clearly half the time and on and on and on. It's so hard to have fallen into this hole, and the sad part is no one has any answers. Now Nature-Throid is on backorder again, but who cares, it doesn't work anyway. Run, don't walk in the other direction from this defective thyroid hormone (or whatever it is)."

1 / 10
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78 Report
  • Lis...
  • February 2, 2015

For Thyroid Cancer "Nature-Throid seriously changed my life! I did so terrible on Synthroid; I was gaining weight despite the fact that I was working out and eating well, losing my hair, major brain fog, headaches with aura, and joint pain. I feel awesome on Nature-Throid and am losing weight even."

10 / 10
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108 Report

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Frequently asked questions

  • jod...
  • Taken for 2 to 5 years
  • December 29, 2019

For Hypothyroidism, After Thyroid Removal "I had RAI (antibodies for Graves and Hashimoto's). It worked for me until they recently retooled the plant. I'm not sure why there is a change in the product, but I've had a dramatic drop in T3/T4 blood test numbers, below the lowest acceptable level. I ache all over. My hair is dry and brittle. I have put on 20 pounds over the last few months. I am so tired! Why did they change something that worked?"

2 / 10
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42 Report
  • CMS...
  • Taken for 5 to 10 years
  • June 14, 2019

For Hypothyroidism, After Thyroid Removal "I, too, have experienced various hypo symptoms since the back order of 2017: dry hair, hair breakage, and hair loss, weight gain, muscular aches and pains, and depression. The company says that nothing has changed, but I disagree. I tried posting on RLC Labs' site, and they blocked me from posting. That says it all! I found out, from someone who has done a lot of research, that the FDA has made RLC change the formula to call it a 'drug,' and I also found out that one of the ingredients is propylene glycol, a derivative of anti-freeze. I am not quite sure about that, though. I do know that whatever they did since the recall has caused problems for many, many people. I am now going to try a compounding pharmacy that will make up a pill with the same ratio of T3 T4 with only one filler, microcrystalline cellulose. Hopefully, this will finally help me feel better!"

2 / 10
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46 Report

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  • CMS...
  • Taken for 5 to 10 years
  • June 14, 2019

For Hypothyroidism, After Thyroid Removal "I, too, have experienced various hypo symptoms since the back order of 2017: dry hair, hair breakage, and hair loss, weight gain, muscular aches and pains, and depression. The company says that nothing has changed, but I disagree. I tried posting on RLC Labs' site, and they blocked me from posting. That says it all! I found out, from someone who has done a lot of research, that the FDA has made RLC change the formula to call it a 'drug,' and I also found out that one of the ingredients is propylene glycol, a derivative of anti-freeze. I am not quite sure about that, though. I do know that whatever they did since the recall has caused problems for many, many people. I am now going to try a compounding pharmacy that will make up a pill with the same ratio of T3 T4 with only one filler, microcrystalline cellulose. Hopefully, this will finally help me feel better!"

2 / 10
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46 Report
  • KB1...
  • Taken for 6 months to 1 year
  • March 22, 2019

For Underactive Thyroid "I started taking Nature-Throid one year ago for my hypothyroidism. Since then, my afternoon dip in energy has improved; however, I have experienced another troublesome side effect. I've lost a lot of hair, and I didn't have much to begin with. Also, my eyebrows are disappearing."

6 / 10
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43 Report

More FAQ

  • Jes...
  • Taken for 6 months to 1 year
  • October 8, 2019

For Underactive Thyroid "I gave it 4 stars because I did start to feel better on this medication. I started getting some energy back and felt pretty good. However, the energy boost was not worth the hair loss and weight gain it caused! I really wish I would not have taken it at all!!"

4 / 10
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29 Report
  • Pam...
  • December 2, 2017

For Underactive Thyroid "My hair began to fall within a month of starting Nature-Throid. I had not been on any thyroid meds prior, and although I have stopped taking Nature-Throid, I have lost about 3/4 of my hair in less than 6 months with zero signs of slowing down. Have cut out inflammatory foods and supplementing as per my naturopath, but to no avail. Still fatigued, leg cramps, irritable (all symptoms prior to meds), and now hair loss. Never again, and I regret taking Nature-Throid."

1 / 10
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34 Report
  • Mis...
  • Taken for 1 to 2 years
  • September 18, 2020

For Underactive Thyroid "Today, I suddenly found out that Nature-Throid medication has been recalled and is no longer available. I've been on it for over a year. However, after reading about the recall, it makes me wonder how long the subpotency has actually occurred because my last TSH values in Feb 2020 were higher than they have been in a long time. I have a lot of symptoms of hypo: constipation, hair loss, brittle nails, fatigue, brain fog, dry skin, etc. However, when my doctor tried to up the dose to the next highest, I had horrible heart palpitations. I'm scared and concerned because I have so many allergies and intolerances. This medication contained no excipients that caused me issues. The only one available like it is Tirosint, which only contains T4. My doctor called it in, and it's not covered by insurance, so I have to go through a specialty pharmacy. I am so angry."

1 / 10
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11 Report
  • No...
  • Taken for 1 to 6 months
  • September 15, 2020

For Underactive Thyroid "I have no symptoms of hypothyroid, yet my blood work comes back low for the last 6 months. Started taking Nature-Throid, feel no different, and eyebrows started thinning. Stopped for 2 months, went to a new NP, and she put me back on Nature-Throid. Still feel no difference, and within a week, my hair started falling out rapidly, which I've never had happen. So frustrated, going to stop taking, as clearly doesn't agree with me."

1 / 10
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6 Report
  • Mat...
  • October 14, 2019

For Hypothyroidism, After Thyroid Removal "I've been taking NT for several years. I feel great on it and did not have weight gain or hair loss. I switched to it after Armour changed its formula and never looked back."

9 / 10
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33 Report
  • Anonymous
  • July 19, 2017

For Hashimoto's disease "I was on Synthroid, it drove me bonkers and took out my hair. I cut out gluten and changed my diet. It all works hand in hand, but Nature-Throid changed my health completely around."

10 / 10
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36 Report
  • Gia...
  • August 14, 2019

For Underactive Thyroid "I've been taking it for a few days, but it makes me feel worse than before, even more tired, no energy at all. I thought I was going to feel better. Some people say they lost a lot of hair."

1 / 10
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21 Report

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Reviews may be edited to correct grammar/spelling or remove inappropriate content. Reviews appearing to come from parties with a vested interest are not published. This information is not intended to endorse any medication and should not replace the expertise and judgment of healthcare professionals.