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WindmillTrusted since 1972

Vitamin D3 1000 IU Bone & Immune SupportTablets 100ct

Windmill Vitamin D3 1000 IU Bone & Immune Support Tablets 100ct — view 1
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Vitamin D3 1000 IU Bone & Immune Support Tablets 100ct

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“Great product, great site, quick delivery and great prices!!!”
Lorenzo G. · Verified buyer · Moore Vitamins store review
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Product details

About This Product

Strengthen your foundation with Windmill's potent Vitamin D3 25 mcg (1,000 IU) — the essential nutrient your body needs every single day to support calcium absorption, bone health, and immune function.

Key Benefits

  • Supports healthy calcium absorption for strong bones and teeth
  • Helps maintain immune system function year-round
  • Promotes healthy muscle function and nervous system support
  • Supports a positive mood and overall well-being
  • Pure, concentrated D3 in convenient daily dosage
  • Ideal for those with limited sun exposure or dietary gaps

Formulated by Windmill Health Products — a trusted American supplement brand for over 50 years, manufactured in an FDA-regulated, cGMP-certified facility. Each tablet delivers 25 mcg (1,000 IU) of Vitamin D3 as cholecalciferol plus 75 mg of calcium for enhanced bone support.

Non-GMO
Non-GMO
Gluten-Free
Gluten-Free
Made in the USA
No Artificial Colors
No Artificial Flavors
No Preservatives

What's Inside

Supplement Facts

Serving Size 1 Tablet

Amount Per Serving% Daily Value
Vitamin D3 (as cholecalciferol)25 mcg125%†
Calcium (as dicalcium phosphate)75 mg6%†

†Percent Daily Values are based on a 2,000 calorie diet.

Other Ingredients

Dicalcium phosphate, stearic acid, microcrystalline cellulose, silica, croscarmellose sodium, magnesium stearate and coating (water, hypromellose, glycerine, talc, carnauba wax).

Free Of

SugarWheatSoyMilkArtificial colorsFlavors or preservatives

At a Glance

  • Serving Size1 tablet
  • Per Bottle100
  • DietaryMade in the USA

Key Actives

  • Vitamin D3
    25 mcg · 125% DV

Dietary Details

  • Made in the USA
  • Non-GMO
  • Gluten-Free
  • No Artificial Colors

Review the complete bottle label for all ingredients, daily values, allergens, and warnings.

Verified Store Reviews

Real Reviews. Real Customers.

Great product, great site, quick delivery and great prices!!!

Lorenzo G.4 months agoVerified

The items from Moore Vitamins shipped so fast and the customer service was great. The vitamins are good quality and perfect for what I needed. I will be buying Moore again

Emily B.3 months agoVerified

The overall customer service was excellent, and the transaction was smooth from start to finish. Delivery was faster than I expected, which was a pleasant surprise.

Joy P.3 months agoVerified

Everything was great with my last order. I will definitely be ordering again.

Billy T.3 months agoVerified

I’ve been buying this exact thing other places at a higher cost, so happy to find this. Tech support helped me find the exact thing I needed. And I got it just a few days.

Daniel T.3 months agoVerified

I had a fantastic experience purchasing my vitamins from this online shop. The website was easy to navigate, making it simple to find exactly what I was looking for. The ordering process was quick and hassle-free, and the prices were great.

Emily B.3 months agoVerified

So far, so good. Fast delivery.

Fred S.4 months agoVerified

I am so Happy that i found Moore Vitamins while scrolling. They're expediate sending out the items and the items is of Great Quality.

Batisa C.2 months agoVerified

Costumer service and communication was great! A man named Daniel helped me find the product I was looking for and ensured that it was in stock. He helped me set up shipping and I really appreciated it. Highly recommend this company for all your vitamin needs!

Alex1 month agoVerified

Great customer service and great quality vitamins. My order always comes in so fast and the quality is amazing

Emily2 months agoVerified

Fast shipping and great customer service made me feel confident to place another order

David1 month agoVerified

Customer Product Reviews

5.0

Based on 1 review

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Jun 19, 2026
Emily B.Verified Buyer

"I had a fantastic experience purchasing my vitamins from this online shop.

The website was easy to navigate, making it simple to find exactly what I was looking for. The ordering process was quick and hassle-free, and the prices were great, especially with the coupons Moore Vitamins offers. The quality of the products has been excellent, and the overall shopping experience exceeded my expectations. Great value, fast service, and a user-friendly website—I’ll definitely be ordering from here again and would highly recommend it to others.

Frequently Asked Questions

Most people notice a difference within 2–4 weeks of daily use.

Supplements work gradually, so consistency matters most. Take it at the same time each day and check in on how you feel week to week.

Take 1 tablet daily with food as a dietary supplement or as directed by a healthcare professional.

It’s made under the FDA’s current Good Manufacturing Practice (cGMP) rules, which require every batch to be tested for identity, strength and purity.

Certifications: Made in the USA, Non-GMO, Gluten-Free, No Artificial Colors, No Artificial Flavors, No Preservatives.

We buy directly from authorized Windmill distributors — never marketplace resellers.

Generally, yes.

Space calcium, iron, zinc and magnesium about two hours apart, and check your other supplements for the same ingredients so doses don’t stack up.

Taking medication, pregnant or nursing? Ask your healthcare provider first.

Return any unopened bottle within 30 days of delivery for a full refund. No restocking fee.

Arrived damaged or wrong? Send us a photo at moorevitamins.com/contact and we’ll refund or replace it.

Yes. Subscribe & Save takes 10% off every delivery, not just the first.

Choose monthly, every 2 months or every 3 months. Skip, pause or cancel anytime from your account — no fees, no minimum.

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