Skip to product information
1 of 8

BulkSupplements.com Vitamin D3 Powder - Cholecalciferol, 5000 IU per Serving, Gluten free, 500g

BulkSupplements.com Vitamin D3 Powder - Cholecalciferol, 5000 IU per Serving, Gluten free, 500g

Regular price $104.17 AUD
Sale price $104.17 AUD Regular price
Save % Sold out

Buy more, save more

BulkSupplements.com Vitamin D3 Powder - Cholecalciferol, 5000 IU per Serving, Gluten free, 500g

Regular price $104.17
Sale price $104.17 Regular price
Save % Sold out
  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • MB WAY
  • PayPal
  • Satispay
  • Shop Pay
  • Visa

What Is Vitamin D3 and Why Is It Important?

Vitamin D is a fat-soluble vitamin that plays a crucial role in helping your body absorb calcium and maintain strong bones. It also supports your immune system and normal muscle function. The form known as vitamin D3 (cholecalciferol) is the same type your skin produces when exposed to sunlight, and it's more efficient at raising blood levels of vitamin D compared to D2. BulkSupplements provides pure vitamin D3 derived from lanolin, a natural source. Because vitamin D is fat-soluble, taking it with a meal containing fat may improve absorption. The powder format makes it easy to mix into a tablespoon of oil, yoghurt, or a smoothie for optimal uptake.

Key Benefits of Vitamin D3 Supplementation

Vitamin D contributes to several important functions in the body:

  • Bone health: Helps maintain normal calcium levels in the blood and supports bone density.
  • Immune function: Plays a role in the normal functioning of the immune system.
  • Muscle function: Contributes to normal muscle contraction and strength.
  • Cell division: Involved in the process of cell division, which is important for overall health.

These benefits are supported by a large body of scientific evidence, but individual results may vary. Maintaining adequate vitamin D is especially important during the winter months or for those who spend most of their time indoors.

Who Might Need Extra Vitamin D?

While anyone can benefit from ensuring adequate vitamin D levels, certain groups are more likely to have low levels:

  • People with limited sun exposure (indoor workers, southern latitudes, or those who cover their skin)
  • Older adults, as the skin's ability to produce vitamin D decreases with age
  • Individuals with darker skin, because melanin reduces vitamin D synthesis
  • Those following a vegan or vegetarian diet may prefer a vitamin D2 source, but this product provides D3 from lanolin
  • People with certain medical conditions affecting fat absorption, such as Crohn's disease or coeliac disease

If you suspect you have low vitamin D, a blood test from your healthcare provider can help determine the right dosage for you.

Why Choose BulkSupplements Vitamin D3 Powder?

Vitamin D is essential for calcium absorption, bone health, and immune function. Yet many people have insufficient levels due to limited sun exposure. BulkSupplements Vitamin D3 Powder delivers a concentrated 5000 IU (125 mcg) of cholecalciferol per serving in a versatile, easy-to-mix powder form. This bulk container (500g) offers exceptional value for those who want to customise their dosage—simply measure a small scoop and mix into your favourite beverage or food. The product is gluten free and contains no unnecessary additives, making it a straightforward choice for vitamin D supplementation. Plus, the powder format avoids common allergens found in softgels or tablets, such as gelatine or soy.

Determining the Right Dosage for You

The recommended dietary allowance (RDA) for vitamin D varies by age and life stage, typically ranging from 600 to 800 IU per day for most adults. However, many experts suggest that higher intakes—such as 1000–4000 IU per day—may be beneficial for maintaining optimal levels, especially for those with limited sun exposure. BulkSupplements Vitamin D3 Powder provides 5000 IU per 50 mg serving (125 mcg). This is a relatively high dose and may be appropriate for individuals with confirmed deficiency or those who require higher intakes under professional guidance.

Because this is a powder, you can easily adjust your serving size. A typical serving is a small scoop (the package includes a scoop or you can use a milligram scale). For maintenance, you might take a smaller amount; for therapeutic correction, your healthcare provider may recommend a specific dose. Always start with the recommended serving and consult a professional before exceeding it.

What to Look For in a Quality Vitamin D Supplement

When choosing a vitamin D supplement, purity and form matter. BulkSupplements Vitamin D3 Powder is pure cholecalciferol without fillers, flow agents, or artificial ingredients. It is gluten free and manufactured in a facility that follows good manufacturing practices. The company has a reputation for providing bulk ingredients with transparent labelling. If you have specific quality concerns, contact the manufacturer directly.

Safety Considerations and Possible Side Effects

Vitamin D is generally safe when taken at recommended doses. However, because it is fat-soluble, excessive intake can lead to toxicity over time. Symptoms of vitamin D toxicity include nausea, vomiting, weakness, and serious complications like kidney damage. The upper tolerable intake level (UL) for adults is 4000 IU per day, but some individuals may safely take more under medical supervision. This product provides 5000 IU per serving, so it should not be taken in combination with other high-dose vitamin D supplements without professional advise. If you are on medications such as steroids or diuretics, consult your healthcare provider before supplementation. Always read the label and follow directions for use. As with any dietary supplement, store this powder in a cool, dry place away from direct sunlight. Keep the container tightly sealed to prevent moisture absorption.

Final Thoughts on BulkSupplements Vitamin D3 Powder

BulkSupplements Vitamin D3 Powder offers a pure, flexible, and cost-effective way to support your vitamin D needs. With 5000 IU per serving in a 500-gram container, it provides many months of supplementation. Whether you want to maintain healthy bones, support your immune system, or simply ensure adequate vitamin D during darker months, this powder is a reliable choice. As always, talk to your healthcare provider before starting any new supplement regimen.

These statements have not been evaluated by the Therapeutic Goods Administration. This product is not intended to diagnose, treat, , or prevent any disease.

Worldwide Delivery

Vitamins4Australia offers free shipping to Australia & the US on every order, with no minimum spend required. Most orders are delivered within 2–7 business days after dispatch, and tracking details are sent by email once the order leaves fulfilment.

Returns and support

Vitamins4Australia offers straightforward post-purchase support with a clear returns process. Please check the store returns policy before sending an item back, as final eligibility may depend on product condition, packaging integrity and whether the return request is started within the stated return window.

How to choose

Use the product description, ingredient list, serving information and available variants to compare supplement options. Always check the full ingredient list, directions for use and any allergen information on the product packaging before taking any food supplement.

Ingredients and important information

Ingredient lists and formulations may vary by batch or supplier. Always check the product packaging for the most up-to-date information. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Do not exceed the recommended daily intake. If you are pregnant, nursing, taking medication or have a medical condition, consult your healthcare professional before use.

View full details
  • Free standard deliveryUsually 2–7 business days to Australia, after 1–3 days to prepare
  • 30-day returnsOn unopened items in original packaging
  • Secure checkoutProcessed by Shopify with major cards accepted
  • Real supportEmail or phone, answered by our team

☆☆☆☆☆

Buying guide and questions

Supplement guide

BulkSupplements.com Vitamin D3 Powder - Cholecalciferol, 5000 IU per Serving, Gluten free, 500g at Vitamins4Australia

What Is Vitamin D3 and Why Is It Important?Vitamin D is a fat-soluble vitamin that plays a crucial role in helping your body absorb calcium and maintain strong bones. It also supports your immune system and normal mus...

Category Vitamins & Supplements
Delivery area Worldwide
Checkout Secure checkout
Brand BulkSupplements
Price $104.17
Availability In stock
5000 iubest supplementsbone healthbulk supplementcholecalciferolgluten freeimmune supportvitamin d powdervitamin d3

How to choose if this supplement fits your routine

Read the ingredient list, check the serving size and directions for use. Consider the supplement form (tablet, capsule, liquid) and whether it suits your dietary requirements. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

Questions about BulkSupplements.com Vitamin D3 Powder - Cholecalciferol, 5000 IU per Serving, Gluten free, 500g

Is BulkSupplements.com Vitamin D3 Powder - Cholecalciferol, 5000 IU per Serving, Gluten free, 500g available worldwide?

Yes. This product is currently available on Vitamins4Australia with free shipping to Australia & the US.

How should I compare this with similar supplements?

Compare the active ingredients, serving size, number of servings per container, supplement form, brand reputation and price per serving. Check allergen information if relevant to your dietary needs.

Where can I find delivery and returns information?

Delivery information is shown near the add to cart area. Returns guidance is available on the product page and full terms are covered in the store returns policy.