Liquid Iodine 30 mL — Thyroid and Metabolism Support
Liquid iodine delivers the essential mineral your thyroid uses to make hormones, in easy-to-adjust drops that let you meet the 150 mcg daily requirement without a fixed megadose. Iodine drives metabolism, energy, and healthy brain development, and roughly 2 billion people worldwide fall short of adequate intake.[1]Importance of Iodine in Public Health — Environmental Geochemistry and Health (2015) View source
What Is Liquid Iodine?
Liquid iodine is a supplement form of the trace mineral iodine, dosed by the drop so you can take a small, precise amount toward the 150 mcg adult requirement. Because the thyroid uses about 60 to 80 mcg of iodine each day to build the hormones T4 and T3, a steady supply keeps metabolism running.[2]Thyroid Peroxidase in Hormone Synthesis — Reviews in Endocrine and Metabolic Disorders (2026) View source
Remedy's Nutrition Liquid Iodine comes in a 30 mL bottle with a dropper, making it simple to match your dose to your needs. Our complete iodine supplement guide explains how the mineral fits into overall health.
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Essential mineral: the body cannot make iodine, so it must come from diet or drops.
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Stored in the thyroid: the gland holds most of the body's 15 to 20 mg of iodine.
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Flexible dosing: drops let you take a small, exact amount rather than a fixed tablet.
Liquid Iodine Benefits: What the Evidence Shows
Iodine's proven benefits all trace to thyroid hormones, which set the pace of metabolism, temperature, and growth in nearly every cell. The strongest evidence involves correcting a deficiency, where adequate iodine protects energy, healthy skin and hair, and, critically, brain development.[3]Iodine Deficiency and Intellectual Disability Burden — Frontiers in Nutrition (2024) View source A full look at iodine benefits weighs each claim.
| Benefit Area |
What Iodine Does |
Evidence |
| Thyroid hormones |
Supplies raw material for T3 and T4 at 150 mcg daily |
Well established |
| Metabolism and energy |
Restores calorie burn when deficiency slowed it |
Strong, when deficient |
| Brain development |
Protects fetal and child cognition |
Strong |
| Skin and hair |
Reverses hypothyroid dryness and thinning |
Moderate, when deficient |
How Iodine Supports Your Thyroid
Your thyroid concentrates iodine from the blood and attaches it to a protein to build hormones, using roughly 60 to 80 mcg every day. When iodine is scarce, the gland enlarges into a goiter to trap more, and hormone output drops, causing fatigue and weight gain.[4]Iodine Fact Sheet for Health Professionals — NIH Office of Dietary Supplements View source
Meeting 150 mcg keeps this system balanced without overloading it. Our guide to iodine for thyroid health explains when supplementing helps and when it does not.
Liquid Iodine for Metabolism and Energy
Iodine supports energy only when a deficiency was dragging thyroid output down, and in that case restoring 150 mcg can ease fatigue within 2 to 4 weeks. It is a corrective nutrient, not a stimulant, so it will not boost a thyroid that already has enough iodine.[5]Iodine — Harvard T.H. Chan Nutrition Source View source
This is why some people feel better on iodine while others notice nothing: the benefit depends on your starting status. Testing before supplementing helps you know which group you are in.
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If deficient: restoring 150 mcg can ease fatigue and cold sensitivity within weeks.
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If sufficient: extra iodine adds no energy and no extra calorie burn.
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If excess: pushing above 1,100 mcg risks the opposite thyroid effect.
Liquid Iodine for Women and Pregnancy
Women have a higher stake in iodine because thyroid conditions and iodine needs both rise around pregnancy, when the requirement climbs to 220 mcg. Adequate iodine supports the baby's brain development, and even mild deficiency can lower a child's cognitive scores.[6]Iodine Supplementation in Pregnancy Meta-Analysis — American Journal of Clinical Nutrition (2020) View source
In pregnancy the goal is meeting the target, not megadosing, so any iodine use should be guided by your OB. Read more in our guide to iodine in pregnancy and breastfeeding.
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Pregnancy: 220 mcg daily supports the baby's brain and nervous system.
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Breastfeeding: 290 mcg daily, since iodine passes into breast milk.
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Avoid megadoses: high amounts can suppress the baby's developing thyroid.
Iodine Deficiency: Who Needs a Supplement
The people most likely to need iodine are vegans, those who use only non-iodized salt, and pregnant women, because they miss the top dietary sources. About 1 gram of iodized salt supplies 45 mcg, so avoiding it can quietly drop intake below 150 mcg.[7]Iodine — NHS Vitamins and Minerals View source
If you eat seafood and dairy regularly, you likely get enough already. Our article on the signs of iodine deficiency helps you decide whether a supplement makes sense.
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Vegans and vegetarians: skip dairy and fish, the 2 top iodine sources.
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Non-iodized salt users: sea and Himalayan salt supply almost no iodine.
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Pregnant and breastfeeding women: needs rise to 220 and 290 mcg daily.
Why Choose Remedy's Liquid Iodine
Remedy's Liquid Iodine is built for precise, flexible dosing: a 30 mL dropper bottle lets you take a small measured amount rather than a fixed 12.5 mg megadose. The formula is clean and filler-free, so you get iodine and little else. This matters because iodine has a narrow safe window, where the 150 mcg requirement sits far below the 1,100 mcg ceiling, so a dose you can control is safer than a one-size megadose.
| What You Get |
Why It Matters |
| Liquid drop format |
Adjust your dose one drop at a time toward 150 mcg |
| 30 mL dropper bottle |
Many weeks of daily use per bottle |
| Filler-free formula |
No unnecessary binders or additives |
| Sensible strength |
Made for daily nutrition, not risky megadoses |
Liquid Iodine Dosage: How to Use the Drops
Adults need 150 mcg of iodine daily, with a safe upper limit of 1,100 mcg, so follow the label and start with the lowest listed number of drops. Count all sources, including iodized salt and food, toward your daily total.[8]Risks of Iodine Excess — Endocrine Reviews (2024) View source
| Goal |
Typical Daily Iodine |
Notes |
| Adult maintenance |
150 mcg |
Standard requirement for most adults |
| Pregnancy |
220 mcg |
Under OB guidance; avoid megadoses |
| Breastfeeding |
290 mcg |
Iodine passes into breast milk |
| Safe ceiling |
1,100 mcg |
Do not exceed from all sources |
For a full breakdown by age, see our guide on how much iodine per day you actually need.
Safety, Side Effects and Drug Interactions
At 150 mcg, iodine is very safe, but doses above 1,100 mcg can cause a metallic taste, stomach upset, acne, and thyroid dysfunction. People over 40 with nodules, anyone with Hashimoto's, and those on certain medications should check with a doctor first.[9]Iodine and Thyroid Dysfunction in Ageing — Geriatrics (2026) View source
| Consideration |
Details |
| ACE inhibitors and potassium-sparing diuretics |
Combined with iodide, can raise blood potassium |
| Thyroid medication |
Iodine can shift levothyroxine dosing needs |
| Lithium |
With iodine, can promote hypothyroidism and goiter |
| Over 40 or thyroid nodules |
Higher risk of iodine-induced hyperthyroidism |
Talk to your doctor before use if you have a thyroid condition, take thyroid, blood pressure, or lithium medication, or are pregnant. Full details are in our guide to iodine side effects and safe use.
Liquid vs Capsule Iodine
Liquid iodine and capsules both work, but the practical difference is control: drops let you fine-tune the dose, while capsules deliver a fixed amount. For staying within the 150 to 1,100 mcg window, a liquid makes small adjustments easy.[10]Iodine Intake and Mortality Risk — Nutrients (2025) View source
Whole-food kelp is another option for food-based iodine, though its content per serving varies. Choose the format that best fits your dosing needs and routine.
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Liquid drops: adjustable dose, ideal for staying near the 150 mcg target.
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Capsules: a fixed, convenient amount, usually 150 mcg per serving.
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Kelp: whole-food iodine, but the amount can range widely between batches.
Frequently Asked Questions
What is liquid iodine used for? +
Liquid iodine supplies the mineral your thyroid uses to make hormones that run metabolism, energy, and brain development. At the 150 mcg adult requirement, it prevents or corrects deficiency. It is most useful for vegans, people avoiding iodized salt, and pregnant women, who often fall short of dietary iodine.
How many drops of liquid iodine should I take? +
The number of drops depends on the product, since drop strength varies, so always follow the label. Start with the smallest listed serving and count all iodine sources toward the 150 mcg daily target. Never exceed the 1,100 mcg upper limit, and check with a doctor if you have a thyroid condition.
Is liquid iodine better than tablets? +
Liquid iodine lets you adjust the dose one drop at a time, which helps you stay within the 150 to 1,100 mcg range. Tablets give a fixed amount that is convenient but less flexible. Both work when they deliver measured iodine; the best choice depends on how precisely you want to control your dose.
Can liquid iodine help my thyroid? +
Liquid iodine helps the thyroid when intake is genuinely low, since the gland needs about 60 to 80 mcg daily for hormones. Meeting 150 mcg prevents goiter and deficiency-related hypothyroidism. It does not help an autoimmune or already-sufficient thyroid, and high doses can harm it, so test first if unsure.
How much iodine per day is safe? +
Adults can safely take 150 mcg of iodine daily, with a tolerable upper limit of 1,100 mcg from all sources. Pregnancy needs 220 mcg and breastfeeding 290 mcg. Staying below the ceiling protects the thyroid. High-dose products at 12.5 mg exceed the requirement over 80 times and need medical supervision.
Can I take liquid iodine every day? +
Yes, taking iodine daily at 150 mcg safely maintains thyroid hormone production. Problems arise only with daily high doses near or above 1,100 mcg, which can cause a metallic taste, stomach upset, and thyroid dysfunction. Staying within the recommended range makes daily use safe for most healthy adults.
Who should not take iodine? +
People with hyperthyroidism, Hashimoto's, thyroid nodules, or those over 40 with autonomous thyroid tissue should avoid extra iodine unless a doctor advises it. Anyone on thyroid medication, lithium, ACE inhibitors, or potassium-sparing diuretics should also check first. For these groups, excess iodine can trigger thyroid dysfunction.
Does liquid iodine help with energy or weight? +
Iodine restores energy and normal metabolism only if low thyroid hormones from deficiency were the cause, and correcting 150 mcg can help within weeks. It does not boost a healthy thyroid or cause weight loss on its own. Using high doses to lose weight is ineffective and risks thyroid dysfunction.
Is liquid iodine safe during pregnancy? +
Iodine is needed in pregnancy at 220 mcg daily for the baby's brain, but only at the target amount, not megadoses. Many prenatal vitamins already supply about 150 mcg. Because too much can harm the baby's thyroid, any additional iodine should be used only under your OB or midwife's guidance.
What are the side effects of liquid iodine? +
At 150 mcg, side effects are rare. Above the 1,100 mcg upper limit, iodine can cause a metallic taste, stomach upset, acne-like eruptions, and thyroid dysfunction, including both hyper- and hypothyroidism. These build gradually with high doses. Staying near the requirement keeps side effects very unlikely for most people.
How do I take liquid iodine drops? +
Add the labeled number of drops to a glass of water or juice, once daily, ideally at a consistent time such as the morning with food. Start at the lowest serving of 1 drop if you are new to iodine. Keep the total across food and supplements within the 1,100 mcg daily ceiling.
Does liquid iodine need refrigeration? +
Liquid iodine does not require refrigeration; store the 30 mL bottle at room temperature away from direct light and heat. Keep the cap closed tightly between uses to preserve the solution. Always keep it out of reach of children, since concentrated iodine is not meant for small bodies at adult doses.
Is Remedy's Liquid Iodine vegan and filler-free? +
Yes, Remedy's Liquid Iodine is a filler-free liquid, so you get iodine without unnecessary binders or additives. The 30 mL dropper format supports flexible dosing toward the 150 mcg daily target. As with any supplement, review it with your doctor if you have a thyroid condition or take medication.
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Sea Kelp 1000 mg — whole-food source of naturally occurring iodine for gentle daily thyroid support
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