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Vitamins & Foundational Health

180 products
Regular price $34.00
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1 mg vitamin B12 as methylcobalamin: Active, tissue-ready form the body uses more efficiently than cyanocobalamin. Nerve function support: Supports healthy nerve function and feeling.* Methylat...
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1,000 mg vitamin C per capsule: The highest dose of vitamin C in any of Thorne's encapsulated vitamin C products. Immune function support: Promotes optimal immune function.* Collagen, skin, hai...
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Vitamin C paired with 75 mg citrus bioflavonoids per capsule: 500 mg vitamin C as ascorbic acid with 75 mg citrus bioflavonoids. Immune function support: Promotes optimal immune function.* Coll...
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Vitamin D3 + K2 (MK-4) liquid formula: Combined nutrients provide greater benefit together than each alone.* MK-4 vitamin K2: The most clinically studied form of vitamin K. Advanced bone and ca...
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1,000 IU vitamin D3 per capsule: Moderate daily dose in the more potent and better-absorbed D3 form. Bone, teeth, and calcium absorption support: Enhances the absorption and retention of calcium...
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1,000 IU vitamin D3 per capsule: Moderate daily dose in the more potent and better-absorbed D3 form. Bone, teeth, and calcium absorption support: Enhances the absorption and retention of calcium...
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10,000 IU vitamin D3 per capsule: High-potency dose for individuals requiring aggressive vitamin D supplementation. Better-absorbed D3 form: More potent and better absorbed than vitamin D2. Bon...
Regular price $39.00
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5,000 IU vitamin D3 per capsule: The more potent and better-absorbed form than vitamin D2. NSF Certified for Sport: Every batch tested for compliance with label claims and free of nearly 300 ban...
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5,000 IU vitamin D3 per capsule: The more potent and better-absorbed form than vitamin D2. NSF Certified for Sport: Every batch tested for compliance with label claims and free of nearly 300 ban...
Regular price $24.00
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Liquid vitamin D3 with precision bulb dropper: Measures 2,000 or 4,000 IU precision doses for flexible daily supplementation. Bone, teeth, and calcium absorption support: Enhances the absorption...
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Comprehensive K formula: Three key types of vitamin K in one capsule — vitamin K1 (1 mg), vitamin K2 as MK-4 (5 mg), and vitamin K2 as MK-7 (90 mcg as MenaQ7®) — each with distinct clinical suppo...
Regular price $75.00
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1 mg MK-4 Per Drop: Precision-dispensed liquid vitamin K2 as MK-4, the form that exerts a more powerful influence on bone health than vitamin K1.* Metered Dropper: Self-dispensing top provides a...
Regular price $48.00
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Non-Hormonal Botanical Formula: Standardized fenugreek extract (FenuSmart®), shatavari (Asparagus racemosus), and damiana (Liboost®) — clinically studied herbal ingredients supporting female sexu...
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23 well-absorbed nutrients: Targeted daily multi-vitamin/mineral for women 50 and older. Bone support: Calcium, magnesium, and vitamins D and K2 support bone health during perimenopause and post...
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15 mg zinc as zinc bisglycinate per capsule: Absorbed intact without competing with other minerals for absorption. 43% higher blood levels vs zinc gluconate: Clinical crossover study demonstrate...
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30 mg zinc as zinc bisglycinate per capsule: Absorbed intact without competing with other minerals for absorption. 43% higher blood levels vs zinc gluconate: Clinical crossover study demonstrate...
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15 mg zinc as zinc picolinate per capsule: Superior absorption compared to zinc citrate and zinc gluconate.* Bound to picolinic acid: Facilitates zinc absorption in the small intestine for maxim...
Regular price $41.00
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30 mg zinc as zinc picolinate per capsule: Superior absorption compared to zinc citrate and zinc gluconate.* Bound to picolinic acid: Facilitates zinc absorption in the small intestine for maxim...
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30 mg zinc as zinc picolinate per capsule: Superior absorption compared to zinc citrate and zinc gluconate.* Bound to picolinic acid: Facilitates zinc absorption in the small intestine for maxim...
Regular price $23.00
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30 mg zinc as zinc picolinate per capsule: Superior absorption compared to zinc citrate and zinc gluconate.* NSF Certified for Sport: Every batch tested for compliance with label claims and free...
Regular price $37.95
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800mg EPA + 600mg DHA per serving: The two essential omega-3 fatty acids your body can't produce on its own — in triglyceride form for significantly better absorption than the ester form used in ...
Regular price $12.95
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1,000 IU Vitamin D3 as vegan cholecalciferol: The same molecular form your skin produces from sunlight, sourced from lichen instead of sheep's wool. Supports bone density, immune function, mood,...
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200mg magnesium as glycinate per capsule: The most bioavailable and best-tolerated form of magnesium — no GI distress at effective doses. Supports sleep, muscle relaxation, and recovery: Magnesi...
Regular price $14.95
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25mg Iron as Bisglycinate: Highly bioavailable chelated iron form that's significantly better tolerated than ferrous sulfate — reduces the constipation, nausea, and stomach upset most drugstore i...
Regular price $39.99
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Two-product foundational mineral + vitamin bundle: Pairs Wild Foods 7-in-1 Magnesium Complex with Vitamin K2 (MK-7) + D3 (5000 IU) + Black Pepper Extract at a bundle price. Synergistic mineral t...
Regular price $73.99
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Three daily essentials in one bundle: CocoTropic mushroom cocoa mix, 7-in-1 Magnesium Complex, and Methylated Whole Food Multivitamin. CocoTropic for calm focus: Organic reishi, chaga, maca, and...
Regular price $87.99
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4-product daily nutrition kit: 7-in-1 Magnesium Complex + Vitamin K2 (MK-7) + D3 (5000 IU) with Black Pepper + Wild Fish Oil (EPA/DHA/DPA) + Methylated Whole Food Multivitamin. Full-spectrum cov...
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Vitamin K2 (MK-7) + Vitamin D3 5000 IU: The two fat-soluble vitamins that work synergistically for bone density, immune function, and cardiovascular health. MK-7 is the superior K2 form: Menaqui...
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26 active whole-food ingredients: Comprehensive daily multivitamin with essential vitamins and minerals in their most bioavailable forms. Methylated B vitamins: Includes methylcobalamin (B12) an...
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Triple-strength EPA + DHA + rare DPA: 1600 mg total omega-3 per 2-capsule serving — 600 mg EPA, 600 mg DHA, and 100 mg DPA (an omega-3 most fish oils do not contain). Natural triglyceride (TG) f...
Regular price $94.99
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The foundational daily duo: Multivitamin plus Omega-3 -- baseline nutrition that supports cardiovascular health, cognitive function, and a healthy inflammatory response. Multivitamin: A whole-fo...
Regular price $79.97
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Developed with Dr. Stacy Sims: A 3-product stack addressing inflammation and oxidative stress, particularly in women using hormonal birth control. Signature Spec Creatine (5g): Supports cellular...

Vitamins, omega-3, vitamin D, and foundational health supplements for people who want to fill nutritional gaps and support long-term health alongside an active lifestyle.

What to Look For

  • Form of nutrients: The form of a vitamin determines how well it is absorbed. Magnesium glycinate absorbs better than magnesium oxide; methylfolate is better than folic acid; vitamin D3 is more effective than D2. Check that a multivitamin uses bioavailable forms, not cheap synthetic versions.
  • Dose relative to daily needs: More than 100% DV of water-soluble vitamins (B vitamins, vitamin C) is generally safe since excess is excreted. Fat-soluble vitamins (A, D, E, K) accumulate in the body — check that doses are in the safe range, especially vitamin A.
  • Third-party testing: Supplements in the US are not FDA-approved before sale. Look for products verified by NSF, USP, or Informed Sport if quality assurance matters to you. At minimum, look for GMP-certified manufacturing.

Frequently Asked Questions

What is the difference between a multivitamin and single-ingredient vitamins?

Multivitamins cover a broad range of nutrients in one product but typically at lower doses per nutrient. Single-ingredient supplements let you target specific deficiencies at higher doses. For general coverage, a high-quality multi works well. For confirmed deficiencies, a targeted single-ingredient product is more effective.

Do athletes need more vitamins than non-athletes?

In some cases, yes. High-intensity training increases the turnover of B vitamins, magnesium, zinc, and iron. Athletes who sweat heavily or follow calorie-restricted diets are most at risk for micronutrient shortfalls. A blood panel is the most accurate way to identify deficiencies.

What vitamins are most commonly deficient?

Vitamin D, magnesium, and omega-3 fatty acids are the most common deficiencies in the general population and among athletes. Vitamin D3 (especially for people with limited sun exposure), magnesium glycinate (for sleep, muscle function, and stress), and omega-3 fish oil (for inflammation and cardiovascular health) are the three most commonly recommended foundational supplements.

These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult with your doctor to see if this product is right for you.