Life Extension Vitamin D3 5000 IU with Sea-Iodine - Complete Thyroid & Bone Support Formula

Life Extension has been at the forefront of nutritional science since 1980, pioneering evidence-based supplementation that addresses real nutritional gaps. Their Vitamin D3 5000 IU with Sea-Iodine delivers three critical nutrients often missing from modern Bangladeshi diets—now available at ৳2,220 for a 60-capsule supply. Unlike basic multivitamins with minimal amounts of these nutrients, this advanced formula provides therapeutic doses of vitamin D3, dual-form vitamin K (K1 + K2), and marine-derived iodine in one convenient daily capsule. Perfect for urban Bangladeshis with limited sun exposure and those avoiding table salt or seafood, this comprehensive supplement supports bone density, cardiovascular health, thyroid function, and immune resilience with pharmaceutical-grade purity.

What Makes Life Extension Vitamin D3 with Sea-Iodine Different?

While many supplements offer token amounts of vitamin D or K, Life Extension's formulation stands apart through scientific precision and dosing backed by decades of longevity research. This isn't just another multivitamin—it's a targeted intervention for three of the most common nutritional deficiencies worldwide, including in Bangladesh where indoor lifestyles and dietary patterns create unique challenges.

Brand Heritage & Manufacturing Excellence: Life Extension operates their own FDA-registered manufacturing facilities in the USA, maintaining cGMP (current Good Manufacturing Practice) standards that exceed industry requirements. Every batch undergoes rigorous third-party testing for purity, potency, and contaminant screening. The brand's Clinical Science team reviews over 50,000 research studies annually to ensure formulations reflect the latest nutritional science—not outdated RDA minimums.

Superior Vitamin D3 Concentration: Each capsule delivers 125 mcg (5000 IU) of cholecalciferol—the bioidentical form your skin produces from sunlight. This is 25 times higher than typical multivitamin amounts and matches the dosing used in clinical studies for bone health, immune modulation, and cardiovascular support. The high-potency format is particularly valuable in Bangladesh, where year-round clothing coverage, air pollution, and indoor work environments limit natural vitamin D synthesis.

Dual-Action Vitamin K Complex: Unlike single-form vitamin K supplements, this formula provides 2100 mcg total: 1000 mcg of vitamin K1 (phylloquinone) for blood clotting support, plus 1100 mcg of vitamin K2 in both MK-4 and MK-7 forms for bone mineralization and arterial health. The combination ensures optimal calcium routing—directing this mineral into bones while preventing unwanted arterial calcification, a critical balance as vitamin D increases calcium absorption.

Marine-Sourced Iodine from Organic Seaweed: The 1000 mcg iodine content comes from a blend of organic kelp and bladderwrack—two seaweed species naturally concentrated in this trace mineral. This is significantly more bioavailable than potassium iodide found in table salt, and addresses the silent iodine deficiency affecting many Bangladeshis who've reduced salt intake for blood pressure management. Adequate iodine is essential for thyroid hormone production (T3 and T4), which regulate metabolism, energy levels, and cognitive function.

Why This Combination Matters: These three nutrients work synergistically—vitamin D enhances calcium absorption, vitamin K directs calcium to bones (not arteries), and iodine supports the thyroid gland that regulates how your body uses these nutrients. Taking them together in scientifically validated ratios, rather than separately or in insufficient multivitamin doses, delivers measurable health outcomes documented in Life Extension's clinical research programs.

Key Health Benefits & Why Bangladesh Needs This Nutrient Trio

Bangladesh faces a unique nutritional landscape: limited sun exposure despite tropical location (due to indoor work, pollution, and cultural dress patterns), declining seafood consumption in urban areas, and reduced salt intake following cardiovascular health campaigns. This creates a perfect storm for vitamin D, K, and iodine deficiencies—which this supplement directly addresses.

Bone Density & Osteoporosis Prevention: Vitamin D3 enhances intestinal calcium absorption, while vitamin K2 activates osteocalcin—the protein that binds calcium into bone matrix. Together, they help maintain bone mineral density as you age. For Bangladeshi women at higher osteoporosis risk post-menopause, and men with sedentary desk jobs, this combination supports skeletal strength more effectively than calcium supplements alone.

Cardiovascular & Blood Pressure Support: Vitamin D helps maintain healthy endothelial function (the inner lining of blood vessels) and supports blood pressure already within normal range through renin-angiotensin system modulation. Vitamin K2 activates matrix Gla-protein (MGP), which inhibits arterial calcification—a key factor in cardiovascular aging. With heart disease rates rising in Bangladesh, these mechanisms support long-term cardiovascular wellness.

Thyroid Function & Metabolic Health: Your thyroid cannot produce T3 and T4 hormones without adequate iodine. These hormones regulate basal metabolic rate, body temperature, energy production, and weight management. Many Bangladeshis experience unexplained fatigue, weight gain, or cold sensitivity due to subclinical hypothyroidism linked to iodine insufficiency—which 1000 mcg daily helps counteract.

Immune System Resilience: Vitamin D3 modulates both innate and adaptive immune responses, supporting your body's defense mechanisms without overstimulation. Research shows vitamin D receptors exist on most immune cells, and adequate levels correlate with reduced infection rates and healthier inflammatory responses. This is particularly relevant during monsoon seasons when respiratory infections spike in Bangladesh.

Cognitive Function & Mood: Vitamin D receptors are abundant in brain tissue, and the nutrient supports neurotransmitter synthesis and neuroprotection. Iodine deficiency during childhood affects cognitive development, but maintaining adequate levels in adulthood helps preserve memory and mental clarity. Vitamin K2 also shows emerging benefits for brain health through calcium regulation in neural tissue.

Cell Differentiation & Growth: Vitamin D plays crucial roles in healthy cell division and differentiation across tissues. Adequate vitamin D status supports normal cell life cycles, which is foundational to long-term wellness—one reason Life Extension emphasizes this nutrient in their longevity-focused formulations.

Product Specifications & What's Inside

Active Ingredients (Per Capsule)

• Vitamin D3 (as cholecalciferol): 125 mcg (5000 IU) - 625% Daily Value
• Vitamin K: 2100 mcg total
  • Vitamin K1 (as phylloquinone): 1000 mcg
  • Vitamin K2 (as MK-4): 1000 mcg
  • Vitamin K2 (as MK-7): 100 mcg
• Iodine (from organic kelp and bladderwrack): 1000 mcg - 667% Daily Value

Full Ingredient List

Other ingredients: Microcrystalline cellulose, vegetable cellulose (capsule), maltodextrin, modified food starch, silica, stearic acid.

Non-GMO: This product does not contain genetically modified organisms.

Allergen Information: Free from gluten, dairy, soy, and artificial preservatives. Manufactured in a facility that processes tree nuts and shellfish (due to seaweed source).

Purity & Safety Standards

Third-Party Testing: Every Life Extension product undergoes independent Certificate of Analysis (COA) testing to verify label claims for potency and purity. This includes heavy metal screening (arsenic, lead, cadmium, mercury), microbiological testing, and identity confirmation.

Seaweed Sourcing: The kelp and bladderwrack are harvested from pristine ocean waters and tested for environmental contaminants including radiation, PCBs, and pesticides. Only organic-certified seaweed meeting strict European and US standards is used.

Vitamin K Safety: The high vitamin K content is safe for most people but may interact with blood-thinning medications (see cautions below). The formula uses bioavailable forms proven in clinical research.

Freshness Guarantee: Life Extension uses nitrogen-flushed, light-resistant bottles with tamper-evident seals to preserve potency from manufacturing through your last dose. When purchased through authorized sellers like Somvranto, products are stored in climate-controlled conditions and shipped with minimal temperature exposure.

How to Use Vitamin D3 with Sea-Iodine - Dosage & Timing

Recommended Dosage: Take one (1) capsule daily with food, or as directed by a healthcare practitioner.

Best Time to Take: Consume with your largest meal of the day, preferably one containing healthy fats (like avocado, nuts, or olive oil). Vitamin D3 and vitamin K are fat-soluble nutrients, meaning dietary fat significantly improves their absorption. Morning or midday dosing is ideal, as some people report vitamin D taken at night may affect sleep quality.

For First-Time Users: If you've never supplemented with high-dose vitamin D3 before, consider getting a baseline 25-hydroxyvitamin D blood test. This helps you track progress after 8-12 weeks of supplementation. Most Bangladeshis test below 30 ng/mL (deficient or insufficient), and 5000 IU daily typically brings levels into the optimal 40-60 ng/mL range.

Consistency Matters: These nutrients work through cumulative effects over weeks and months. Missing occasional doses isn't critical, but regular daily use delivers the documented health benefits. Set a phone reminder or keep the bottle with your breakfast items to build the habit.

Storage: Store in a cool, dry place away from direct sunlight. No refrigeration required. Keep out of reach of children due to high vitamin D and iodine content per capsule.

Who Should Consult a Doctor First:

• Individuals taking blood-thinning medications (warfarin, Coumadin) - vitamin K can interfere with anticoagulant therapy
• Those with hypercalcemia, kidney stones, or kidney disease - high-dose vitamin D requires medical monitoring
• People with hyperthyroidism or taking thyroid medications - additional iodine may affect thyroid function
• Pregnant or breastfeeding women - while these nutrients are essential, medical guidance ensures appropriate dosing
• Anyone with a diagnosed medical condition or on prescription medications - potential interactions should be reviewed

Price, Value & Availability in Bangladesh

Transparent Pricing

Current Price: ৳2,220 for 60 capsules (2-month supply at one capsule daily)

Cost Per Serving: ৳37 per day - less than the price of a premium tea in Dhaka for comprehensive bone, cardiovascular, thyroid, and immune support.

Value Comparison: Buying vitamin D3, vitamin K complex, and iodine separately would cost ৳3,500-4,000 monthly from quality brands, with the inconvenience of multiple bottles and dosing schedules. This combination formula delivers pharmaceutical-grade nutrients at 40% cost savings while ensuring synergistic ratios backed by Life Extension's research.

Quality-to-Price Ratio: While local vitamin D supplements may seem cheaper (৳800-1,000 for 60 capsules), they typically provide only 1000-2000 IU with no vitamin K or iodine, generic sourcing, and minimal quality testing. Life Extension's USA manufacturing, third-party verification, and science-backed formulation justify the premium—you're paying for measurable health outcomes, not just milligrams on a label.

Where to Buy in Bangladesh

Authorized Seller: Purchase authentic Life Extension Vitamin D3 with Sea-Iodine exclusively through Somvranto Bangladesh—the country's trusted importer of genuine USA and European supplements since 2014. Buying from unauthorized online marketplaces or unverified sellers risks counterfeit products, expired stock, or heat-damaged capsules with degraded potency.

Nationwide Delivery Coverage:

• Dhaka: Next-day delivery in most areas including Gulshan, Dhanmondi, Banani, Mirpur, Uttara, Mohammadpur, Bashundhara, and surrounding neighborhoods
• Chittagong: 1-2 day delivery to city center and port areas
• Sylhet, Rajshahi, Khulna: 1-2 day delivery via express logistics
• Other Districts: 2-day delivery nationwide through reliable courier partners with SMS tracking

Authenticity Guarantee: Every Life Extension product sold by Somvranto includes verifiable batch codes, intact USA packaging with holographic seals, and proper storage throughout the import-to-delivery chain. The company's decade-long reputation depends on selling only genuine supplements—counterfeit risks that plague other channels simply don't exist when ordering through Somvranto's official platform.

Customer Service: Questions about dosing, compatibility with medications, or choosing between Life Extension products? Somvranto's supplement specialists provide free consultations via WhatsApp, phone, or email before and after purchase. They also assist with blood test interpretation if you're monitoring vitamin D levels.

Return Policy: Unopened products can be returned within 7 days if you change your mind. If you receive a damaged or tampered product (extremely rare), Somvranto replaces it immediately at no cost.

Final Assurance for Bangladeshi Customers

Life Extension Vitamin D3 5000 IU with Sea-Iodine represents four decades of nutritional research condensed into one daily capsule—designed to address the specific deficiencies prevalent in modern lifestyles, including urban Bangladesh. When you order through Somvranto, you receive authentic USA-manufactured supplements with full batch traceability, stored in climate-controlled warehouses, and delivered intact across Bangladesh within 1-2 days. The company's 10-year reputation for quality, transparent pricing at ৳2,220 for 60 capsules, and responsive customer service makes this the safe, reliable choice for serious health supplementation. Whether you're supporting bone strength, cardiovascular wellness, thyroid function, or immune resilience, this scientifically formulated trio delivers measurable results backed by clinical research. Order now for fast, reliable delivery across Bangladesh and invest in the foundational nutrients your body needs for long-term vitality.