№ 1
Glow 9.4
Vitamin D3 + K2
Best for australian flagship
1000IU D3 + K2. Australian-made. The category benchmark for daily use.
Editorial Ranking · Wellness · 2026
Best Vitamin D Supplements in Australia (2026)
Vitamin D supplements tested for absorption, dose accuracy, and inclusion of K2 (which significantly improves D3 utilisation).
6 products tested
April 2026 editorial visit
5-axis Glow Score
0 paid placements
Full ranking · 1 to 6
Glow's full ranking.
Most Australians are vitamin-D-deficient. The picks below earn their place by being properly dosed and bioavailable.
№ 2
Glow 9.1
Vitamin D3 5000IU + K2
Best for high-dose
5000IU for clinical deficiency.
№ 3
Glow 9.0
Vitamin D3
Best for premium clinical
Clinical-grade, 1000IU. Used by integrative practitioners.
№ 4
Glow 8.7
Vitamin D + K2 Spray
Best for spray format
Spray format, faster absorption. Easier for clients who can't swallow tablets.
№ 5
Glow 8.5
Vitamin D3 1000IU
Best for budget pharmacy
Pharmacy-grade Australian standard.
№ 6
Glow 8.4
Vitamin D3 5000IU
Best for budget high-dose
Budget high-dose option.
Frequently asked
Common questions.
How much vitamin D should I take?
1000IU daily for most adults; 5000IU for clinical deficiency (test first). Australian Department of Health recommends 600IU minimum.
Should vitamin D be taken with K2?
Yes — K2 directs calcium properly when D3 increases its absorption. Without K2, high-dose D3 can cause calcium accumulation.
Should I take vitamin D in the morning or evening?
Morning, with food. D3 is fat-soluble; takes with the day's biggest meal. Evening can disrupt sleep in some users.
Can I get enough vitamin D from sun?
10-15 minutes of midday sun 4× weekly works in summer. Winter and indoor work make supplementation necessary for most Australians.
More from Glow.
For more wellness editorial, see our Wellness hub, or browse all brands and brand reviews. For our annual edit, see The Glow 100.