Vitamin D3 K2 MK-7 Australia | Bulletproof A D K Softgels
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Fat-Soluble Vitamin Softgels · 5-in-1 A-D-K Formulation · 30 Softgels
Bulletproof® Vitamins A-D-K
A softgel supplement combining the fat-soluble vitamins A, D3, K1, K2 (MK-4), and K2 (MK-7) in a single daily softgel, delivered in an MCT oil base.
30 softgels · 30 servings · Contains beef gelatin softgel shell.
Key Points
- Five vitamins in one softgel — Vitamin A (as retinyl palmitate), Vitamin D3, Vitamin K1, Vitamin K2 as MK-4, and Vitamin K2 as MK-7
- Both forms of K2 — MK-4 and MK-7 have different half-lives and are found in different natural food sources; this product includes both
- MCT oil base — all these vitamins are fat-soluble, so the MCT oil serves as the delivery fat
- Once-daily softgel — one softgel per day, preferably with a meal containing fat
- 30-day supply per bottle
What It Is
This is a combination fat-soluble vitamin softgel. It brings together five nutrients that are typically dosed together because they interact in the body and share similar dietary and absorption characteristics.
Vitamin A (as retinyl palmitate) occurs naturally in animal-source foods such as liver, egg yolks, dairy, and fatty fish. Plant carotenoids (like beta-carotene in carrots) can also be converted to Vitamin A, though conversion efficiency varies.
Vitamin D3 (cholecalciferol) is the form the body produces on skin exposure to UVB sunlight, and is also found in fatty fish, egg yolks, and fortified foods. Many people with limited sun exposure do not consistently reach recommended dietary intake levels.
Vitamin K1 (phylloquinone) is found in leafy green vegetables. Vitamin K2 (MK-4) is found in animal-source foods like organ meats and egg yolks. Vitamin K2 (MK-7) is found in fermented foods, most notably nattō (fermented soybeans).
Because these vitamins are fat-soluble, the softgel includes MCT oil as a fat carrier. Taking the softgel with a meal that contains fat generally supports absorption.
Product Specifications
| Format | Softgel capsules |
| Count | 30 softgels |
| Serving Size | 1 softgel |
| Servings per Bottle | 30 |
| Vitamin A Form | Retinyl palmitate |
| Vitamin D Form | Vitamin D3 (cholecalciferol) |
| Vitamin K Forms | K1 (phylloquinone), K2 as MK-4 (menatetrenone), K2 as MK-7 (menaquinone-7) |
| Delivery Base | MCT oil (from coconut) |
| Softgel Shell | Gelatin, glycerin, purified water (contains beef gelatin) |
| Storage | Store in a cool dry place, away from direct sunlight. |
Refer to the product label for exact per-softgel quantities of each vitamin.
Directions for Use
Take one softgel per day, preferably with a meal containing fat. Fat-soluble vitamins are better absorbed when taken with food that contains some fat — a meal with butter, oil, avocado, nuts, or fatty fish works well.
Do not exceed the recommended daily dose unless directed by your healthcare practitioner.
Good to Know
Why include both MK-4 and MK-7 forms of K2?
The two forms have different half-lives. MK-4 has a shorter half-life in circulation; MK-7 has a longer half-life. They’re also found in different food sources — MK-4 in animal foods, MK-7 in fermented foods like nattō. Including both provides a broader K2 profile than either form alone.
Softgel or gummy?
This softgel is more concentrated per serving and contains no added sugar. The A-D-K Gummies version is a chewable format some people find easier to remember to take daily, though gummies typically contain some sweetener. Both cover the same combination of vitamins.
Are these vegetarian or vegan?
The softgel shell contains beef gelatin, so this product is not vegetarian or vegan. The Vitamin A form (retinyl palmitate) is also typically animal-derived.
Why take these together?
Vitamins A, D, and K are all fat-soluble and share overlapping absorption pathways. Combined dosing is common because they’re easier to take once per day, and the MCT oil in the softgel serves as the fat carrier for all three. Taking them separately would work equally well — the combination is a convenience.
Important Information
Always read the label. Follow the directions for use. Vitamin and mineral supplements should not replace a balanced diet.
If you are pregnant, breastfeeding, taking prescription medication (particularly blood-thinning medication such as warfarin), or have an existing medical condition, consult a healthcare practitioner before use. Vitamin K can interact with blood-thinning medication.
Keep out of reach of children. Do not use if the tamper-evident seal is broken or missing. Store below 25°C in a dry place, away from direct sunlight.
I trust this brand 100% to provide the best quality with the right ratios for maximum effects
I noticed the difference within 7 days of changing over to this brand
good
The best product offered pure vitamins 10/10 ✨
Fast and reliable delivery and quality product My GP confirmed it was a valuable supplement
I've had a noticeable increase in energy since I added these to my morning routine. Definitely recommend.
This product is a complete game changer to my sleep and I up my dose for when I am stressed and it makes a huge difference. I will no switch to anything else!
Starting taking these a year ago and there’s are life changing. Made such a difference to the way I feel. I recommend it to everyone.
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I like these and take them regularly. I believe to be a quality product.
Products are great as is the customer service
A great product that's easy to tolerate even at high doses
I’ve purchased the ADK soft gels and also the brain octane oil and I can see the difference already. More alert during the day and sleep better at night. My partner has also been taking the vitamins (not the oil) and he is very impressed. Already ordered next batch.
One gel capsule replaces 5 regular vit d capsules plus has the k2
easy to swallow, have noticed a difference already. would repurchase
Bulletproof Vitamins A-D-K - 30 softgels
👍🏼👍🏼
Outstanding product love the 3in1 with correct dosage super fast delivery amazing company OptimOZ are the number one for health nutrition and caring
Works as said. 👍🏼👍🏼
I got a vitamin genetic test done and it said I needed Vitamins ADEK, you used to be able to buy ADEK, but now you can only buy ADK which has helped me a lot. I showed my naturopath my ADK softgels and she said, "wow, these are really good, they don't have any bad ingredients in them, or fillers". she was very impressed. Because of my genetic makup, I really need these. I am supper happy. :)
To round of my nutrition I take some essential supplements and when I buy the bulletproof brand I know I am covered. I trust the brand and use the A-D-K religiously!
My first order with Optimoz. Awesome products. Had some clunks with logistics/updates but customer service was personable and helpful.
Will be a regular customer. Thank you.
Excellent supplement, tried other brands, not as effective
Wow, amazing results immediately. My partner and I have been enjoying the benefits of the bulletproof products and finding them extremely beneficial. OptimOZ makes the access to those products easy and effortless for a great price. Very recommended
After extensive research I found the Bulletproof Vitamin ADK to be of the highest quality in the market, both in terms of amount of the vitamins, the delivery, and the over quality of the ingredients. Recommended!
Convenient way of taking these 3
:) I can’t live without this
I just don't work properly without this product.
I believe this is a trusted product and I so happy with the added health benefits it has provided me. Especially coming into winter and shorter days with limited sun exposure. Thanks again.
Thanks once again Bulletproof your service and products are second to none.
I trust Bulletproof supplements and this is no exception. Good quality, easy to take and my Vit D levels are good.
With Covid restrictions and lockdown especially over winter it can be hard to get enough sun exposure which is our natural source of Vitamin D. ADK helps address this and has the added bonus of boosting our A and K too. We don’t going without this supplement in our daily routine
Perfect combination to ultimate assimilation
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