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Super D3 4000 IU — 100 softgels Solaray

A high-potency Vitamin D3 with 4000 IU per softgel — the most common dose used in therapeutic supplementation to correct established deficiencies. Unlike 1000 IU supplements, Solaray's Super D3 is formulated for individuals with confirmed deficiency or very low sun exposure, who need a higher dose to reach and maintain optimal blood levels. With 100 softgels — a supply for over 3 months.

Benefits of Super D3 4000 IU

• 🦴 Supports calcium absorption and the maintenance of bones and teeth
• 🛡️ Boosts the immune system in autumn and winter
• 😊 Contributes to mood and reduces the risk of seasonal depression
• 💪 Supports muscle function and reduces the risk of falls in older adults
• ☀️ Ideal for areas with low sunlight or individuals with limited sun exposure
• 📦 100 softgels — a supply for over 3 months

Who is it for?

• Individuals with vitamin D deficiency confirmed by lab tests
• People over 60 with reduced skin synthesis of vitamin D
• Those living in northern latitudes or spending little time in the sun
• Overweight individuals (vitamin D accumulates in fatty tissue, and its bioavailability is lower)
• Individuals with dark skin (lower skin synthesis)
• Those who regularly use sunscreen all year round

How to use

Take 1 softgel daily with a meal containing fat, as vitamin D is fat-soluble and is better absorbed in the presence of dietary fats. It is recommended to have a 25(OH)D blood test before starting high-dose supplementation and again after 3 months to adjust the dose if necessary.

Quality Certification

Solaray is GMP certified and manufactured in NSF certified facilities, with in-house ISO 17025:2017 accredited lab analysis on every batch.

Frequently Asked Questions (FAQ)

Is it safe to take 4000 IU of vitamin D daily?

Yes, for most adults. EFSA (European Food Safety Authority) sets the tolerable upper intake level at 4000 IU/day. This dose is the most commonly used in therapeutic supplementation under medical supervision. If you have doubts, consult your doctor and have a blood test.

Do I need to take vitamin K2 with D3?

It is recommended, especially at high doses and with prolonged use. Vitamin K2 directs absorbed calcium to the bones and prevents it from depositing in the arteries. If you don't take K2 separately, consider a supplement that combines D3+K2.

How long does it take for vitamin D levels to rise?

With 4000 IU daily, blood levels typically improve significantly within 8-12 weeks. To confirm that you have reached the optimal range (40-60 ng/ml), a blood test is recommended after 3 months of supplementation.

Can I take it with calcium?

Yes. Vitamin D3 improves intestinal absorption of calcium, making it the ideal complement to calcium supplements or diets low in dairy products. Ensure you do not exceed the recommended total calcium intake.