Vitamin D 400 IU Supplement®

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Serving Size: 1 Tablet(s) · 1 per day

Not Present

Ingredients

• 

  Nature Made D3 + K2 Softgels

  Nature Made4.3(274)

  $16.79
• 

  Nature Made Adult D3 Gummies

  Nature Made4.6(698)

  $11.69
• 

  Nature Made Vitamin D3 IU

  CVS Pharmacy4.7(5000)

  $25.99
• 

  Nature Made Peach D3 + K2 Gummies

  Nature Made4.3(167)

  $20.99
• 

  Nature Made Extra Strength Softgels

  Walmart4.7(1400)

  $16.48
• 

  Nature Made Vitamin D3 IU Liquid Softgels

  Target4.8(882)

  $19.69
• 

  Nature Made Zero Sugar Vitamin D3 Gummies

  Nature Made4.5(116)

  $18.99
• 

  Nature Made Zero Sugar D3 Gummies

  Walmart4.4(198)

  $9.98

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.

• The Vitamin Shoppe

  4.5 (168)

  Vitamin & supplements store

  23051 Outer Dr W, Allen Park, MI 48101

  Directions(313) 278-5979

• Vitamin Source

  5.0 (4)

  Vitamin & supplements store

  3815 Monroe St, Dearborn, MI 48124

  Directions(313) 359-3100

• The Vitamin Shoppe

  4.6 (193)

  Vitamin & supplements store

  21901 Eureka Rd, Taylor, MI 48180

  Directions(734) 287-0075

• The Vitamin Shoppe

  4.5 (180)

  Vitamin & supplements store

  12687 Middlebelt Rd, Livonia, MI 48150

  Directions(734) 524-0343

• GNC

  4.1 (60)

  Vitamin & supplements store

  22831 Woodward Ave, Ferndale, MI 48220

  Directions(248) 542-4573

• GNC

  4.4 (35)

  Vitamin & supplements store

  28300 Telegraph Rd, Southfield, MI 48034

  Directions(248) 352-2518

• GNC

  3.9 (32)

  Vitamin & supplements store

  1361 Coolidge Hwy, Troy, MI 48084

  Directions(248) 614-9277

• The Vitamin Shoppe

  4.4 (144)

  Vitamin & supplements store

  31753 Woodward Ave, Royal Oak, MI 48073

  Directions(248) 549-8927

• Vitamin D metabolism and guidelines for vitamin D supplementation

  I Ramasamy - The Clinical Biochemist Reviews, 2020 - pmc.ncbi.nlm.nih.gov

  … 25(OH)D for each 100 IU/d (2.5 μg/d) of ingested vitamin D. In a … ng/mL) per 40 IU (1 μg) of vitamin D 3 supplement per day. A … sets an AI for vitamin D at 400 IU/d (10 μg/d). EFSA states …

  2020273 citations

• The health effects of vitamin D supplementation: evidence from human studies

  R Bouillon, D Manousaki, C Rosen… - Nature Reviews …, 2022 - nature.com

  … 400 IU of vitamin D can prevent nutritional rickets in infants and children 1 . However, the skeletal effects of vitamin D … daily vitamin D supplement of about 800 IU of vitamin D combined …

  2022660 citations

• One hundred years after Vitamin D discovery: Is there clinical evidence for supplementation doses

  S Ghanaati, J Choukroun, U Volz, R Hueber… - Int J Growth Factors …, 2020 - academia.edu

  … For infants 400 IU/day, for all other groups, 800 IU/day Vitamin D intake was advised.[23] … dietary supplements made in the United States. J Clin Endocrinol Metab 2011;96:3603‑8. 63. …

  202027 citations

• Vitamin D supplementation: upper limit for safety revisited?

  R Rizzoli - Aging clinical and experimental research, 2021 - Springer

  … /day (8 out of 9 studies used vitamin doses below 2900 IU/day) [29]. Surprisingly, in a dose–response study, with vitamin D supplements ranging from 400 IU to 4800 IU/day for 12 …

  2021169 citations

• Vitamin D supplementation: a review of the evidence arguing for a daily dose of 2000 international units (50 µg) of vitamin D for adults in the general …

  P Pludowski, WB Grant, SN Karras, A Zittermann, S Pilz - Nutrients, 2024 - mdpi.com

  … IU (5 µg) for the vast majority of the population). Regarding the required vitamin D intakes to achieve serum 25(OH)D … vitamin D supplement with 400 IU (10 µg) and 800 IU (20 µg) of …

  2024104 citations

• Comparative analysis of nutritional guidelines for vitamin D

  R Bouillon - Nature Reviews Endocrinology, 2017 - nature.com

  … supplement of vitamin D (preferably 400 international units (… , has demonstrated that vitamin D (at a dose of 400 IU per day) … –400 IU of vitamin D 3 or vitamin D 2 can prevent vitamin D …

  2017633 citations

• Vitamin D: What the Label Numbers Mean

  How to read vitamin D amounts on a Supplement Facts panel, the IU-to-mcg conversion, and why %DV matters.

  VitaSuppTrack Editorial· Jun 24, 2026

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2012-06-01. DSLD Label ID: 9115. 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.