Vitamin D Supplements

Shop vitamin D supplements at Elite Supps, from single-nutrient D3 to combined D3 and K2 formulas. Vitamin D contributes to normal bone, muscle and immune function, and helps the body absorb calcium to maintain healthy bones. Our range is led by our house-brand Emrald Labs Vitamin D3 + K2 Capsules, and every member of our team is a certified nutritionist, so expert advice is always free. If you think your levels may be low, the right first step is a chat with your GP.

What does vitamin D do?

Vitamin D contributes to normal bone, muscle and immune function, and helps the body absorb calcium to maintain healthy bones (Healthdirect). Your body makes most of its vitamin D when skin is exposed to sunlight, and you get smaller amounts from food. It works alongside other nutrients, including vitamin K2 and magnesium, which is why many supplements pair them. For more on what a healthy level supports, read our vitamin D benefits guide.

What is the difference between vitamin D3 and D2?

Vitamin D comes in two main forms. D3 (cholecalciferol) is the form the body makes in the skin and is found in animal sources, while D2 (ergocalciferol) comes from plant and fortified sources. D3 is the form most supplements use and is generally considered more effective at raising and maintaining vitamin D levels (Tripkovic et al.). Most products in this range, including the Emrald Labs range, use D3.

Do you need K2 with vitamin D3?

You do not strictly need K2, but the two are often paired. Vitamin D helps your body absorb calcium, and vitamin K is a cofactor for osteocalcin, one of the main proteins in bone; some (but not all) studies link higher vitamin K intake with higher bone mineral density (NIH ODS). That is why combined formulas are popular. Our house-brand Emrald Labs Vitamin D3 + K2 Capsules leads the range, with the Switch Nutrition Vitamin D3 + K2 as a co-featured option. Learn more in our D3 and K2 guide.

How do you get vitamin D?

There are three main sources: sunlight, food and supplements. Most vitamin D is made in the skin from sunlight, but in Australia sun exposure needs to be balanced against skin-cancer risk, so follow Cancer Council and GP advice for your situation rather than seeking deliberate unprotected sun. Few foods are naturally rich in vitamin D (NIH ODS). Where sunlight and diet fall short, a supplement can help top up your intake. See our vitamin D foods guide for dietary sources.

Who is at risk of low vitamin D?

Some people are more likely to have low vitamin D, including those with limited sun exposure, naturally darker skin, mostly covered skin, older adults, and people who spend most of their time indoors (Healthdirect). These are reasons to talk to your GP, not to self-diagnose. A blood test ordered by your GP is the only way to know your vitamin D level. For what to do next, read our vitamin D deficiency guide.

How much vitamin D per day?

There is no single amount that suits everyone, and the right intake depends on your age, health and current level. In Australia the adequate intake of vitamin D for most adults is 5.0 micrograms a day, rising to 10 micrograms a day for adults 51 to 70 and 15 micrograms a day for those over 70; the upper level of intake for adults is 80 micrograms a day (NHMRC). Your personal dose, and any higher-strength regimen, should be guided by your GP. Vitamin D is fat-soluble, so the body stores it, and very high chronic intakes can be harmful (NIH ODS) - more is not better. Our dosage guide covers this in more detail.

How do you choose a vitamin D supplement?

Look at the form (D3 is the most common), whether it includes K2, the strength per serve, and the format that suits you, such as capsules or softgels. If you take medication or have a health condition, or are pregnant or breastfeeding, check with your GP or pharmacist first. Our range spans D3-only options and combined D3 and K2 formulas, led by the house-brand Emrald Labs Vitamin D3 + K2 Capsules. It also pairs well with our magnesium range, a common co-factor.

Why buy vitamin D from Elite Supps?

• Every member of our team, online and in store, is a certified nutritionist, so expert advice is always free.
• A curated range from trusted brands, led by our house-brand Emrald Labs.
• Same-day dispatch on orders placed before cut-off, with fast delivery Australia-wide.
• Free shipping on orders over $150, plus regular exclusive deals.
• More than 140 stores nationwide if you would rather ask in person.

Explore more

Browse our immune support and vitamins and minerals ranges, or read our vitamin D benefits guide. Not sure what you need? Our certified nutritionists are happy to help. Supplements support a healthy lifestyle and are not a substitute for medical advice - if you are concerned about your vitamin D, see your GP.