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Vitamins D and K with Sea-Iodine
Support your bone, brain, thyroid and arterial health with these three essential nutrients.
Maintaining healthy vitamin D levels helps support cognitive health, promotes bone health, encourages healthy immune function and more. Vitamin K helps maintain your body’s calcium balance, which affects everything from cardiovascular health to bone density. Iodine is essential for the production of thyroid hormones.
This formula delivers 125 mcg (5,000 IU) of vitamin D3, 2100 mcg of vitamin K and 1000 mcg of iodine in a convenient, once-daily supplement to support bone, brain, thyroid and vascular health.
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- Supports healthy cognitive function
- Promotes bone, immune & cardiovascular health
- Helps inhibit calcium buildup in the arteries
- Helps counteract possible iodine deficiency in healthy diets
Take one (1) capsule once daily with food, or as recomended by a healthcare practitioner.
| Caution |
| Individuals consuming more than 50 mcg (2,000 IU)/day of vitamin D (from diet and supplements) should periodically obtain a serum 25-hydroxy vitamin D measurement. Do not exceed 250 mcg per day unless recommended by your doctor. Vitamin D supplementation is not recommended for individuals with high blood calcium levels. If you have a thyroid condition or are taking antithyroid medications, do not use without consulting your healthcare practitioner. If you are taking a vitamin K antagonist (e.g. warfarin), consult your healthcare practitioner before taking this product. |
Warnings
- KEEP OUT OF REACH OF CHILDREN
- DO NOT EXCEED RECOMMENDED DOSE
- Do not purchase if outer seal is broken or damaged.
- When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.
Pregnancy Safety:
Use with caution. While Vitamin D, Vitamin K, and iodine are all important nutrients during pregnancy, this formula combines them in potentially higher-than-needed doses, particularly:
- Vitamin D3 (125 mcg / 5,000 IU) – higher than the standard prenatal recommendation unless specifically prescribed.
- Vitamin K1 + K2 – generally safe, but consult provider if on blood thinners or with clotting concerns.
- Sea Iodine – iodine is essential for fetal brain development, but excess can impact thyroid function.
Summary: This product may be safe during pregnancy, but only under medical supervision due to its potency. Not recommended as a standard prenatal supplement.
| Vitamin D3 (as cholecalciferol) | 125 mcg |
| Vitamin K activity from: | 2100 mcg |
| Vitamin K1 (as phytonadione) | 1000 mcg |
| Vitamin K2 (as menaquinone-4) | 1000 mcg |
| Vitamin K2 (as trans menaquinone-7) | 100 mcg |
| Iodine [from Sea-Iodine™ Complex Blend (organic kelp and bladderwrack extracts, potassium iodide)] | 1000 mcg |
| Other ingredients: microcrystalline cellulose, vegetable cellulose (capsule), maltodextrin, food starch-modified, dicalcium phosphate, stearic acid, silica. | |
Third‑Party Testing & Manufacturing Standards
- All raw materials and finished products undergo rigorous third-party testing for potency, purity, and identity—screening for heavy metals, pesticides, microbial contaminants, and batch consistency.
- Life Extension maintains NSF-certified cGMP facilities, audited regularly to ensure compliance with 21 CFR Part 111.
- Finished products consistently achieve ConsumerLab validation, with numerous formulas recognized for exceptional purity and quality.
- Select products, such as omega‑3 supplements, are included in the International Fish Oil Standards (IFOS) program and consistently receive top ratings.
- Gluten free| Non-GMO