MultiThera® 1 Iron-Free Tablet
MultiThera® 1 Iron-Free Tablet from Klaire Labs/SFI Health is a comprehensive, hypoallergenic multivitamin-mineral formula designed for adults who require a broad-spectrum foundational supplement without added iron.
May be a fit for
- Adults seeking a comprehensive iron-free multivitamin formula
- Individuals with elevated iron levels avoiding supplemental iron intake
- Those supporting broad-spectrum micronutrient repletion without iron
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MultiThera® 1 Iron-Free Tablet from Klaire Labs/SFI Health is a comprehensive, hypoallergenic multivitamin-mineral formula designed for adults who require a broad-spectrum foundational supplement without added iron. It delivers activated B-vitamin forms alongside a balanced array of essential vitamins and minerals to support daily nutritional needs. This product is particularly suited for those working with a healthcare practitioner on a structured nutritional protocol.
Why It's Worth Considering: Klaire Labs formulates to practitioner-grade standards with minimal excipients and hypoallergenic ingredients, the iron-free designation makes it appropriate for individuals whose iron status is already well-managed or who are advised to avoid supplemental iron.
Klaire Labs/SFI HealthMake it part of your routine.
Adults: 6 tablets daily with food or as directed by a healthcare professional. Children 7 to 18: Take up to 3 tablets daily with food or as directed by healthcare professional.
Important cautions & interactions
WARNING:
Consuming this product can expose you to chemicals, including lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov/food
Product details
Supplement facts & complete label
Supplement Facts
Serving Size 6 Tablets
Amount Per 6 Tablets — % Daily Value
Vitamin A (86% (4,500 mcg RAE) as beta-carotene and 14% (750 mcg RAE) as vitamin A palmitate) — 5,250 mcg RAE — 583%
Vitamin C (as L-ascorbic acid) — 1,200 mg — 1,333%
Vitamin D3 (as cholecalciferol) — 25 mcg — 125%
Vitamin E (87% as RRR-alpha-tocopheryl acid succinate, 13% as RRR-alpha-tocopherol) — 263 mg — 1,753%
Vitamin K (67% as vitamin K1 (phytonadione) and 33% as vitamin K2 (menaquinone-7)) — 60 mcg — 50%
Thiamin (as thiamin HCI) — 100 mg — 8,333%
Riboflavin — 50 mg — 3,846%
Niacin (75% as niacinamide, 25% as niacin) — 200 mg NE — 1,250%
Vitamin B6 (as pyridoxine HCl) — 50 mg — 2,941%
Folate (as Metafolin®‡ calcium L-5-methyltetrahydrofolate) — 1,360 mcg DFE(800 mcg) — 340%
Vitamin B12 (as methylcobalamin) — 200 mcg — 8,333%
Biotin (D-Biotin) — 300 mcg — 1,000%
Pantothenic Acid (as calcium D-pantothenate) — 400 mg — 8,000%
Choline (as choline bitartrate) — 150 mg — 27%
Calcium (87% as calcium citrate-malate complex and 13% as calcium D-pantothenate) — 230 mg — 18%
Iodine (from kelp) — 150 mcg — 100%
Magnesium (75% as dimagnesium malate and 25% as Albion® magnesium bisglycinate chelate‡‡) — 200 mg — 48%
Zinc (as Albion®zinc arginate chelate‡‡) — 15 mg — 136%
Selenium (as L-selenomethionine) — 200 mcg — 364%
Copper (as Albion®copper bisglycinate chelate‡‡) — 2 mg — 222%
Manganese (as Albion®manganese bisglycinate chelate‡‡) — 2 mg — 87%
Chromium (as Albion®chromium nicotinate glycinate chelate‡‡) — 200 mcg — 571%
Molybdenum (as molybdenum glycinate chelate) — 150 mcg — 333%
Boron (as boron aspartate-citrate complex) — 2 mg — *
Vanadium (as bisglycinato oxovanadium) — 100 mcg — *
Inositol — 50 mg — *
para-Aminobenzoic Acid — 50 mg — *
Citrus Bioflavonoid Complex (77 mg as citrus bioflavonoid extract (Citrus aurantium) (fruit/peel) (standardized to 50% citrus bioflavonoids) and 14 mg as hesperidin methyl chalcone (derived from Citrus aurantium extract) (fruit)) — 91 mg — *
Natural Mixed Tocopherols (RRR-beta, RRR-delta, RRR-gamma) — 8 mg — *
Natural Mixed Carotenoids (lutein and zeaxanthin from D. salina) — 100 mcg — *
* Daily value not established
Other ingredients: Silicified microcrystalline cellulose, cellulose, croscarmellose sodium, stearic acid, microcrystalline cellulose, silicon dioxide, magnesium stearate, sodium carboxymethyl cellulose, dextrin, dextrose, medium chain triglycerides, sodium citrate, and natural citrus flavor.
Label directions
Adults: 6 tablets daily with food or as directed by a healthcare professional. Children 7 to 18: Take up to 3 tablets daily with food or as directed by healthcare professional.
Label cautions
Consult your physician If you are pregnant or nursing, or have a medical condition, or taking prescription drugs, or under the age of 18 years. KEEP OUT OF REACH OF CHILDREN.
WARNING:
Consuming this product can expose you to chemicals, including lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov/food
Source: SFI Health manufacturer Supplement Facts and directions · September 06, 2026. Formulas and labels can change. Check the packaging you receive.
Who it may suit
May be a fit for
- Adults seeking a comprehensive iron-free multivitamin formula
- Individuals with elevated iron levels avoiding supplemental iron intake
- Those supporting broad-spectrum micronutrient repletion without iron
- Practitioner protocols requiring a hypoallergenic MultiThera base formula
Considerations
- Hemochromatosis (iron overload disorder)
- Taking thyroid medication — separate by 4+ hours
- Active GI bleeding (need medical evaluation, not supplements)
- Thalassemia or other iron-loading anemias
What to expect over time
Energy Improvement
Reduced fatigue as oxygen delivery improves
Hemoglobin Rise
Measurable Hb increase (1-2 g/dL)
Ferritin Repletion
Ferritin stores rebuilding
Full Repletion
Target ferritin 50-100 ng/mL
Based on clinical iron supplementation data. Continue supplementing until ferritin reaches 50+ ng/mL.
Compare the options
Compare Iron Forms
Absorption and tolerability matter
| Feature | Bisglycinate (gentle) | Ferrous Sulfate | Ferrous Fumarate | Heme Iron |
|---|---|---|---|---|
| Absorption | High (chelated) | Moderate | Moderate | Highest (animal-derived) |
| GI Side Effects | Minimal | Common (constipation) | Moderate | Minimal |
| Best For | Sensitive stomachs | Budget, proven | Higher elemental iron | Maximum absorption |
| Take With | Empty stomach OK | Vitamin C required | Vitamin C helps | Anytime |
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A few useful answers.
Research & further reading
More category questions
What is the best form of iron supplement?
Iron bisglycinate (Ferrochel) is the best-tolerated form with high absorption and minimal GI side effects. Ferrous sulfate is the most studied but commonly causes constipation and nausea. Heme iron polypeptide has the highest absorption rate but is animal-derived.
Why does iron cause constipation?
Non-chelated iron forms (ferrous sulfate, fumarate) are poorly absorbed — the unabsorbed iron irritates the gut lining and slows peristalsis. Chelated forms (bisglycinate) are absorbed more completely, leaving less unabsorbed iron in the gut. Taking vitamin C improves absorption and reduces GI side effects.
Can I take iron with other supplements?
Separate iron from calcium, zinc, magnesium, and dairy by 2+ hours (they compete for absorption). Separate from thyroid medication by 4+ hours. DO take iron WITH vitamin C (doubles absorption). Avoid taking with coffee or tea (tannins reduce absorption by 60%).
How do I know if I need iron?
Get a complete iron panel: serum ferritin (most sensitive — optimal is 50-100 ng/mL), serum iron, TIBC, and transferrin saturation. Symptoms of deficiency: fatigue, cold hands/feet, pale skin, brittle nails, shortness of breath, brain fog, and restless legs. Ferritin below 30 ng/mL warrants supplementation in most cases.
Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.
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