D3 400 IU

Suggested Use

Directions: As a dietary supplement; dissolve one Microlingual tablet under the tongue daily. This product may also be swallowed.

• 

  Superior Source MicroLingual Tablets

  William's Natural Foods4.3(6)

  $6.39
• 

  Superior Source Children's D3

  Swanson Health Products4.8(297)

  $4.59
• 

  Superior Source Vitamin D3 IU Extra

  Village Green Apothecary4.9(1300)

  $9.74
• 

  Superior Source D3 400 IU 100 MicroLingual Instant Dissolve Tablets

  GoSupps.com4.3(6)

  $29.99
• 

  Spring Valley Vitamin D3 Softgels

  Walmart4.7(152)

  $4.88
• 

  Superior Source Children's D3 400 IU 100 MicroLingual Instant Dissolve Tablets

  GoSupps.com4.8(297)

  $29.99
• 

  Superior Source Advanced Zinc with Vitamin D3 60 MicroLingual Instant Dissolve Tablets

  Target4.8(79)

  $20.99
• 

  Nature's Truth D3 400IU Tablets

  Meijer4.4(29)

  $6.79

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

• 4Life Los Angeles - Transfer Factor & RioVida

  5.0 (1)

  Vitamin & supplements store

  1221 1/2 W 91st St, Los Angeles, CA 90044

  Directions(213) 260-5225

• EarthNutri

  5.0 (14)

  Vitamin & supplements store

  17510 S Broadway C, Gardena, CA 90248

  Directions(310) 523-5108

• GNC

  4.4 (67)

  Vitamin & supplements store

  3561 W Century Blvd, Inglewood, CA 90303

  Directions(310) 673-6400

• Productos Naturales La Vitamina

  4.4 (32)

  Vitamin & supplements store

  12935 Prairie Ave, Hawthorne, CA 90250

  Directions(310) 245-6286

• 90 for life nutrientes y clases de nutricion

  Vitamin & supplements store

  11700 Simms Ave S, Inglewood, CA 90303

  Directions(310) 493-9064

• Nutritional Sport Supplements

  4.9 (35)

  Vitamin & supplements store

  3512 Florence Ave, Huntington Park, CA 90255

  Directions(323) 562-4987

• Herbalife Vidal Nutricion

  5.0 (2)

  Vitamin & supplements store

  10017 San Pedro St, Los Angeles, CA 90003

  Directions(323) 345-7112

• The Vitamin Shoppe

  4.5 (150)

  Vitamin & supplements store

  1800-G Rosecrans Ave, Manhattan Beach, CA 90266

  Directions(310) 643-5634

• Vitamin D for the prevention of disease: an endocrine society clinical practice guideline

  MB Demay, AG Pittas, DD Bikle, DL Diab… - The Journal of …, 2024 - academic.oup.com

  … situations, empiric vitamin D supplementation is inexpensive, feasible, acceptable to both healthy individuals and health care professionals, and has no negative effect on health equity. …

  2024701 citations

• The clinical importance of vitamin D (cholecalciferol): a paradigm shift with implications for all healthcare providers.

  A Vasquez, G Manso, J Cannell - … Therapies in Health & …, 2004 - openurl.ebsco.com

  … ) are both used as sources of vitamin D, D3 is the human nutrient and … superior health status for the mother and infant. The current daily reference intake (DRI) for vitamin D of 200-400 IU …

  2004107 citations

• Efficacy of 800 IU Versus 400 IU Daily Oral Vitamin D3 Supplementation for Vitamin D Insufficiency Among Term Small-for-Gestational Age Breastfed Infants: An …

  S Jayasimha, B Dubey - Indian Pediatrics, 2026 - Springer

  … Eligible infants were randomized within 24 h of life to receive either 800 IU or 400 IU daily oral vitamin D 3 supplementation until 14 weeks of age. Primary outcome was proportion of …

  2026

• Vitamin D3 supplementation does not enhance the effects of resistance training in older adults

  KS Mølmen, D Hammarström… - Journal of cachexia …, 2021 - Wiley Online Library

  … Eligibility criteria were consumption of less than 400 international units (IU) of vitamin D 3 per day for the two months leading up to the study, and either normal lung function or medical …

  202146 citations

• Potential insufficiency of vitamin D in healthy individuals: divergent performances of C3-epi-D3 levels and percentages

  X Chen, J Tang, B Xu, W Jiang, P Yang, Y Yang - Scientific Reports, 2026 - nature.com

  … of 500 IU (12.5 μg), 700 IU (17.5 μg), 400 IU (10.0 μg) respectively. Several adults were administered vitamin D supplements … ranging from ranging from 500 to 800 IU (12.5 μg to 20 μg). …

  2026

• Vitamin D management update: evidence-based guidelines for vitamin D optimization by the Egyptian Academy for bone and muscle health

  Y El Miedany, M Toth, M Mohamed El Gaafary… - Egyptian Rheumatology …, 2025 - Springer

  … cholecalciferol (vitamin D3), while plant-based sources offer ergocalciferol (… supplement of 10 μg (400 IU) to 100 μg (4000 IU) year-round [21]. This tolerable upper intake dose (4000 IU) …

  20259 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2020-01-25. DSLD Label ID: 212795. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.