Vitamin D3 4000IU Capsules – Immune, Bone & Muscle Support

Give your body the daily sunshine vitamin it needs. DAITEA Vitamin D3 4000IU Capsules deliver a potent, research-backed dose of cholecalciferol — the most bioavailable form of Vitamin D — to support your immune system, strengthen bones, enhance muscle function, and promote healthy nervous system activity. Whether you're indoors most of the day or simply looking to fill a common nutritional gap, this easy-to-swallow capsule fits seamlessly into your routine.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Why Vitamin D3?

Vitamin D3 (cholecalciferol) is the same form your body naturally produces when exposed to sunlight. As a fat-soluble vitamin, it is efficiently absorbed and stored, making it the gold standard among Vitamin D supplements. Research consistently links adequate Vitamin D levels to a wide range of health benefits.

Key Benefits

• Bone Health: Vitamin D3 is essential for calcium and phosphorus absorption — the building blocks of strong, dense bones and teeth. It helps reduce the risk of bone loss as you age.
• Immune System Support: D3 plays a vital regulatory role in immune cell function, helping your body maintain its natural defenses year-round.
• Muscle Health: Adequate Vitamin D levels are linked to better muscle strength and coordination, supporting an active and balanced lifestyle.
• Nervous System Support: Vitamin D3 may contribute to neuroprotection and the healthy functioning of your nervous system.
• Promotes Calcium Absorption: Works synergistically with calcium to ensure your body actually uses the minerals you consume.

Product Specifications

• Serving Strength: 4000IU Vitamin D3 per capsule
• Available Sizes: 30, 60, or 120 capsules per bottle
• Key Ingredient: Vitamin D3 (Cholecalciferol)
• Suitable For: Adults, Unisex
• Dosage: 1–2 capsules, 1–2 times daily with warm water
• Shelf Life: 2 years
• Packaging: Sealed bottle
• Origin: Made in the US

How to Use

Take 1–2 capsules, 1–2 times per day with a glass of warm water. For best absorption, take alongside a meal that contains healthy fats, as Vitamin D3 is fat-soluble. Consult your healthcare provider before use if you are pregnant, nursing, or taking any medications.

Pair With Related Products

Support your overall wellness routine with these complementary products from our store:

• Laneige Lip Sleeping Mask – Intense Hydration with Vitamin C

Learn More From Trusted Health Authorities

Understand the science behind Vitamin D and your health with guidance from the National Institutes of Health:
NIH Office of Dietary Supplements – Vitamin D Fact Sheet for Consumers

For additional clinical information on Vitamin D3 and bone health, visit:
Mayo Clinic – Vitamin D Overview

Frequently Asked Questions

Q: What is the difference between Vitamin D2 and Vitamin D3?

A: Vitamin D3 (cholecalciferol) is the form naturally synthesized by the human body when skin is exposed to sunlight, and it is generally considered more effective at raising and maintaining blood Vitamin D levels compared to D2 (ergocalciferol). DAITEA Vitamin D3 4000IU uses cholecalciferol for optimal bioavailability.

Q: Is 4000IU of Vitamin D3 safe for daily use?

A: The National Institutes of Health lists 4000IU as the Tolerable Upper Intake Level (UL) for most adults. However, individual needs vary. We always recommend consulting your healthcare provider or doctor before starting any new supplement, especially at higher doses, to ensure it is appropriate for your personal health situation.

Q: Who can benefit most from Vitamin D3 4000IU capsules?

A: Adults who spend limited time outdoors, live in northern climates with reduced sunlight, or have been advised by a healthcare provider to increase their Vitamin D intake are among those who may benefit most. This product is formulated for adults of all genders and supports immune health, bone strength, muscle function, and nervous system wellness.

Q: How should I store my Vitamin D3 capsules?

A: Store your bottle in a cool, dry place away from direct sunlight and heat. Keep the bottle tightly sealed and out of reach of children. The shelf life is 2 years from the date of manufacture.