Best Liquid Vitamin D3 Supplements (2026)
Liquid vitamin D3 supplements offer faster absorption and more flexible dosing than capsules or tablets, making them ideal for people who struggle with pills or need precise dose adjustments. Suspended in carrier oils like MCT or olive oil, liquid D3 enters the bloodstream quickly and can be easily added to drinks or taken directly under the tongue.
Quick Comparison
| Product | D3 Dose | Form | Best For | Rating |
|---|---|---|---|---|
| Vitamin D3 K2 Liquid Drops | 2,000 IU | Drops with K2 | Best Overall | 4.7/5 |
| Organic Vitamin D3 K2 Drops (2 Pack) | 5,000 IU | Drops with MCT Oil | Best Value | 4.6/5 |
| Icelandic Cod Liver Oil Liquid | 1,000 IU + Omega-3 | Liquid Oil | Best Whole-Food Source | 4.5/5 |
| Organic Vitamin D3 K2 Drops 10,000 IU | 10,000 IU | Drops with Omega-3 | Most Potent | 4.6/5 |
| Vitamin D3 K2 with MCT Oil | 5,000 IU | Drops with MCT Oil | Best for Bone Health | 4.5/5 |
| Ultra6 Nutrition Vitamin D3 K2 Drops | 2,000 IU | Drops with K2 | Best Flavor-Free | 4.4/5 |
| Organic Liquid Vitamin D Drops (Citrus) | 1,000 IU per drop | Drops in MCT Oil | Best for Families | 4.5/5 |
1. Vitamin D3 K2 Liquid Drops – Best Overall
- Comprehensive Health Enhancement: Each drop of Vitamin D3 K2 delivers 2000 IU of Vitamin D3 + MK7 from natto, bolstering joint, immune system, and bone health effectively.
- Optimized Vegan Formula: Our Vitamin K D3 provides a crucial daily dose of Vitamins D3 and K2. Ideal for kids and adults, these Vit d3 drops are free from magnesium glycinate and are not for sublingual use.
- Ideal for Limited Sun Exposure: Perfect for individuals not getting enough natural sunlight, this vitamin D supplement enhances calcium transport to bones more effectively than Vitamin D3 alone so you can feel the sunshine
- Convenient Liquid Dropper: Each bottle of Vitamin K2 D3 features an easy-to-use dropper. It is suggested to take 1 drop daily with meals or as recommended by healthcare providers to maintain optimal health.
- Healthy Bone & Heart Support: Our D3 vitamin K2 supplement blend supports bone health & heart wellness with menaquinone-7, a form of Vitamin K2, this synergy between D+K vitamins eliminates need for vitamin K complex D3 K1 K2 MK-4 & K2 MK-7
This well-rounded D3 + K2 liquid formula delivers 2,000 IU per drop with added vitamin K2 for optimal calcium metabolism and bone support.
Each serving provides vitamin D3 as cholecalciferol paired with K2 as MK-7, ensuring both nutrients work synergistically to direct calcium into bones rather than arteries. The liquid format allows precise dose adjustments — simply add more drops for higher needs. It comes in an easy-to-use dropper bottle that lasts for months, making it one of the most economical liquid D3 options available.
- Pros:
- Combines D3 with K2 for better calcium utilization
- Flexible dosing with easy dropper
- Excellent value with hundreds of servings per bottle
- Cons:
- 2,000 IU may not be sufficient for those with severe deficiency
- Unflavored taste may not appeal to everyone
Best for: Everyday maintenance dosing with the added benefit of K2 for bone and cardiovascular health
2. Organic Vitamin D3 K2 Drops (2 Pack) – Best Value
- Liquid Vitamin K2 D3 Formulated for Maximum Potency: Each dose contains 125 mcg (5000IU) of Vitamin D3, 120 mcg of Vitamin K, 250mg of Omega 3, and a potent blend of organic ingredients.
- Tons of Benefits in Every Drop: Our potent blend of vitamin d3 liquid drops boast maximum strength on every serving.
- Liquid Vitamin D3 and K2 for Faster Absorption: A 4-in-1 supplement that's significantly faster to take and for your body to absorb compared to Vitamin D3+K2 capsules.
- Certified Organic Vitamin D: Our Vitamin D3 K2 liquid drops do not contain any fillers, are non-GMO, and are proudly USA-made. We carefully curated and sourced all ingredients in our Vitamin D3 liquid for your overall wellness.
- Worry-Free Purchase: In addition to being a convenient vitamin D liquid, each purchase comes with a hassle-free refund or replacement policy. While we stand by the quality of our vitamin D supplements, your health and satisfaction will go above everything else.
This two-pack of organic D3 K2 drops with MCT oil and omega-3 delivers 5,000 IU per serving at an exceptional per-dose price.
Each bottle contains organic vitamin D3 at 5,000 IU combined with vitamin K2 as MK-7, suspended in MCT oil with added omega-3 fatty acids for enhanced absorption. The organic, non-GMO formula is free of fillers and artificial ingredients. With two bottles included, this pack provides months of daily supplementation. The liquid format absorbs significantly faster than capsule alternatives.
- Pros:
- Two-pack offers outstanding long-term value
- 5,000 IU dose suitable for deficiency correction
- MCT oil and omega-3 enhance fat-soluble vitamin absorption
- Cons:
- 5,000 IU may be too high for those already at adequate levels
- Unflavored formula may have a mild oil taste
Best for: Budget-conscious buyers who want a high-potency organic D3 formula with K2
3. Icelandic Wild Caught Cod Liver Oil Liquid – Best Whole-Food Source
- PREMIUM ICELANDIC COD LIVER OIL FOR WHOLE-BODY HEALTH – Sourced from wild-caught Icelandic cod, this high-quality pure cod liver oil supplement delivers essential Omega-3 fatty acids, EPA, DHA & vitamins A & D to support heart, brain, joint & immune health.
- SUPPORTS CARDIOVASCULAR, BRAIN & JOINT HEALTH – Our burpless cod liver oil supplements help promote heart function, improve cognitive health, support vision, and maintain strong bones and joints, while also boosting immune system function.
- HIGH-POTENCY OMEGA-3 & ESSENTIAL VITAMINS – Our liquid cod liver oil contains molecularly distilled cod liver fish oil, rich in Omega 3 cod liver oil, EPA & DHA, plus naturally occurring vitamins A & D, known for their bone-strengthening & immune-boosting properties.
- HOW TO USE & IMPORTANT WARNINGS – Take 5mL - 1 teaspoon of liquid omega 3 for women & men daily with food for optimal absorption. Consult your doctor before use if you are pregnant, nursing, have a seafood allergy, are on blood-thinning medication, or have a medical condition. Not intended for children.
- MADE IN THE USA WITH GLOBALLY SOURCED INGREDIENTS – Manufactured in a GMP-compliant, ISO 17025-certified facility, our cod liver oil liquid unflavored is non-GMO. Third-party tested formula provides purity, potency, and safety, giving nutritional support for long-term wellness.
This Icelandic cod liver oil liquid provides vitamin D3 naturally alongside omega-3 EPA and DHA, vitamin A, and other whole-food nutrients.
Unlike synthetic D3 drops, this wild-caught cod liver oil delivers vitamin D3 as it occurs in nature — bundled with complementary nutrients that support absorption and provide additional health benefits. Each serving supplies approximately 1,000 IU of naturally occurring D3 along with meaningful doses of EPA and DHA omega-3 fatty acids. The liquid format makes it easy to measure precise doses.
- Pros:
- Whole-food source with naturally occurring D3, omega-3s, and vitamin A
- Wild-caught from pristine Icelandic waters
- Synergistic nutrient profile supports multiple health outcomes
- Cons:
- Fish oil taste may not appeal to everyone
- Lower D3 dose compared to concentrated drops
Best for: Those who prefer whole-food nutrition and want D3 combined with omega-3 fatty acids
4. Extra Strength Organic Vitamin D3 K2 Drops 10,000 IU – Most Potent
- K2 D3 Vitamin Supplement Formulated for Maximum Potency: Our strongest D3K2 blend yet has 250 mcg (10000IU) of Vitamin D3, 120 mcg of Vitamin K, 250mg of Omega 3, and a potent blend of organic ingredients.
- Tons of Benefits in Every Drop: Our potent blend of liquid vitamin D3 with K2 boasts maximum strength in every serving. Each drop has 250 mcg of Vitamin D3 —twice more than our previous formula.
- D3 K2 Vitamin 10000 IU for Faster Absorption: A 4-in-1 supplement that's significantly faster for your body to absorb, unlike capsules and other vitamin K2 calcium supplements for women.
- Organic Vitamin D: Our Vitamin D3 10000IU do not contain any fillers, are non-GMO, and are proudly USA-made. We carefully curated and sourced all ingredients in our Vitamin D3 liquid for your overall wellness.
- Worry-Free Purchase: In addition to being a convenient vitamin D liquid, each purchase comes with a hassle-free refund or replacement policy. While we stand by the quality of our vitamin D supplements, your health and satisfaction will go above everything else.
At 10,000 IU per serving, this is the highest-potency liquid D3 option — ideal for severe deficiency under medical supervision.
This extra-strength formula packs 10,000 IU of vitamin D3 with 120 mcg of vitamin K2 and 250 mg of omega-3 per dropper. The organic formula uses a 4-in-1 blend with both MK-4 and MK-7 forms of vitamin K2, plant-based omega-3, and organic oils for enhanced bioavailability. Made in the USA with no fillers and non-GMO ingredients. The two-pack provides extended supply.
- Pros:
- Highest potency for rapid deficiency correction
- Includes both MK-4 and MK-7 forms of K2
- Organic, non-GMO with no fillers
- Cons:
- 10,000 IU requires medical guidance — not for casual supplementation
- Premium pricing
Best for: Individuals with diagnosed severe vitamin D deficiency working with a healthcare provider
5. Vitamin D3 K2 with MCT Oil 5,000 IU – Best for Bone Health
- SYNERGISTIC DUO: D3 K2 supplement combines vitamin d3 5000 iu and 100mcg of Vitamin K2 (as MK-7, the form of K2 with the highest bioavailability) to help support bone and cardiovascular health*.
- ENHANCED ABSORPTION: Our D3 softgels formulated with premium coconut MCT oil for superior absorption and bioavailability of both vitamins D3 and K2.
- CLEAN AND NATURAL: vitamin d3 k2 supplement is gluten-free, non-GMO, and made with high-quality ingredients, making it ideal for those with dietary restrictions.
- CONVENIENT AND EFFECTIVE: Each bottle contains 60 easy-to-swallow soft capsules, providing a 2-month supply with a simple once-daily dosage.
- QUALITY GUARANTEED: Our supplement is manufactured in a cGMP-compliant facility to ensure quality, potency, and purity, giving you confidence in achieving your health goals.
This targeted D3 + K2 formula in MCT oil provides 5,000 IU of D3 and 100 mcg of K2 specifically optimized for bone density and calcium metabolism.
The 2-in-1 formula pairs 5,000 IU of vitamin D3 with 100 mcg of vitamin K2 as MK-7 in a highly absorbable MCT oil base. This combination is specifically designed to support calcium absorption while ensuring it’s deposited in bones and teeth rather than soft tissues. The sugar-free formula comes in a convenient dropper bottle for precise daily dosing.
- Pros:
- Optimized D3-to-K2 ratio for calcium metabolism
- MCT oil base maximizes fat-soluble vitamin absorption
- Sugar-free and clean ingredient profile
- Cons:
- Single-bottle format (no multi-pack available)
- May not suit those who need lower doses
Best for: Adults focused on bone density, particularly women over 40 and seniors
6. Organic Vitamin D3 K2 Drops 5,000 IU (2 Pack) – Best Premium Organic
- Potent Liquid Vitamin K2 D3 - Each dose contains 125 mcg (5000IU) of Vitamin D3, 120 mcg of Vitamin K, 250mg of Omega 3, Chia Seed oil, and a potent blend of other organic ingredients.
- Tons of Benefits in Every Drop - Our potent blend of vitamin D3 liquid drops boasts maximum strength for your heart, bones, muscles, and immune support with every serving.
- Liquid Vitamin D3 with K2 for Faster Absorption - A liquid supplement that's significantly faster to take and for your body to absorb compared to other Vitamin D3 + K2 capsules.
- Carefully Curated Organic Vitamin D Liquid -Our Vitamin D3 K2 liquid drops contain no fillers, are non-GMO, and are proudly USA-made with global ingredients.
- Ultimate 4-in-1 Supplement - Not all liquid supplements are made equal. Our liquid Vit D3 K2 supplement is packed with nutritional benefits. If you’re unhappy with your purchase, just reach out to us.
This premium two-pack delivers 5,000 IU of organic D3 with K2 and MCT oil omega-3 in a maximum-strength formulation.
Each bottle contains organic vitamin D3 at 5,000 IU per serving, combined with K2 as MK-7 and omega-3 fatty acids from MCT oil for triple-action support. The USDA organic-grade ingredients are non-GMO and free of fillers or artificial additives. The two-pack format provides excellent long-term value for daily users. The dropper design allows for precise dosing from a single drop up to a full serving.
- Pros:
- USDA organic with clean ingredient sourcing
- Two-bottle pack for extended supply
- Combines D3, K2, and omega-3 in one formula
- Cons:
- Oil-based texture may separate — requires shaking
- Dropper measurements can vary slightly
Best for: Health-conscious buyers who prioritize organic certification and want a multi-month supply
7. Ultra6 Nutrition Vitamin D3 K2 Drops – Best Flavor-Free
- HIGHLY ABSORBABLE FOR DAILY WELLNESS: Our vitamin D K2 liquid formula is designed for efficient absorption, making it easy to incorporate into your routine; Ultra6 Nutrition’s vitamin D3 K2 drops provide a convenient way to support your daily nutritional needs
- NOURISH & THRIVE WITH TARGETED NUTRITION: Ultra6 Nutrition’s vit D3 and K2 supplements are crafted for easy daily use; tasteless and odor-free, they offer a simple way to complement your diet with essential nutrients, designed for both men and women
- CONVENIENT & VERSATILE LIQUID FORMULA: Simply add a few drops of our vitamin D3K2 liquid drops to any beverage for a natural energy boost; easily support your health goals with this fast-absorbing, hassle-free formula
- MADE IN THE USA WITH STRICT STANDARDS: Our liquid vitamin D3 with K2 supplement is produced in a GMP-certified facility in the USA, following strict manufacturing processes to ensure quality and consistency in every bottle of vitamin D3 liquid drops
- COMMITTED TO EXCELLENCE: We are dedicated to delivering high-quality vitamin D3 K2 liquid drops that meet rigorous standards. Every bottle of our vitamin K2 and D3 supplement is carefully crafted to support your daily routine with a reliable and easy-to-use formula
This USA-made, flavor-free D3 + K2 liquid is designed for maximum versatility — take it straight or mix into any beverage without altering the taste.
Ultra6 Nutrition formulates this liquid D3 with K2 for adults who want a completely unflavored supplement that won’t interfere with food or drinks. The highly absorbable formulation uses a clean carrier oil base for enhanced bioavailability. The compact 30 ml bottle is travel-friendly while still providing a generous number of servings. Each drop delivers a measured dose of D3 as cholecalciferol.
- Pros:
- Completely flavor-free for versatile use
- USA-made with quality manufacturing standards
- Compact and travel-friendly
- Cons:
- Smaller bottle size compared to competitors
- Limited dose flexibility at the lower end
Best for: People who dislike flavored supplements and want a neutral liquid D3 they can add to anything
8. Organic Liquid Vitamin D Drops (Citrus) – Best for Families
- INCREASE YOUR LOW VITAMIN D LEVELS ... And experience a boost in energy and improved mood. Also supports immune function, bone & heart health, and overall wellness. Ingredients sourced from lanolin. Emulsified with MCT oil from organic coconut trees. Most bioavailable form of liquid vitamin d for maximum absorption. More effective than capsules or softgels.
- EASY TO TAKE FOR THE WHOLE FAMILY... AND WITH AMAZING TASTE - Our liquid drops mean NO pills to swallow! And unlike other vitamin liquids that taste gross, you will enjoy our mild, but refreshing, citrus flavor. Flavored and enhanced with orange & lemon pure essential oils. Take as a sublingual, from a spoon, or mix with your drink.
- METERED DROPPER FOR CUSTOMIZED DOSAGE - Simply turn the bottle completely upside down and wait for a single, consistant sized drop to dispense. More accurate than hard-to-use and often leaky squeeze droppers.
- ORGANIC, ALLERGEN-FREE QUALITY INGREDIENTS - We use organic and ethically sourced ingredients from local farmers as much as possible. Zero sugar, suitable for Keto, Paleo & low-carb diets. Free of soy, milk, egg, shellfish, corn, wheat & nuts. Contains NO gluten, GMO, preservatives or anything artificial. Manufactured under the highest quality GMP & NSF regulations and standards. Kosher certified.
With 1,000 IU per drop in organic MCT oil, this citrus-flavored liquid D3 makes it easy to customize dosing for every family member.
This USDA organic formula delivers 1,000 IU per single drop, allowing precise dose customization from children through adults. Suspended in organic coconut MCT oil for enhanced absorption, the light citrus flavor makes it pleasant to take directly or mix into smoothies and drinks. The bottle lasts for months even with daily family use, making it one of the most versatile and economical options available. Sugar-free formulation.
- Pros:
- 1,000 IU per drop allows flexible family dosing
- Pleasant citrus flavor with no sugar
- USDA organic with MCT oil for absorption
- Cons:
- Requires counting multiple drops for higher doses
- Citrus flavor may not suit everyone’s preference
Best for: Families who want one bottle that works for kids and adults with adjustable dosing
How to Choose the Best Liquid Vitamin D3
When selecting a liquid vitamin D3 supplement, dosage is the first consideration. Most adults need between 1,000 and 5,000 IU daily for maintenance, while those with documented deficiency may require 10,000 IU under medical supervision. Liquid formats make it easy to adjust your dose with a simple change in drop count, which is a major advantage over fixed-dose capsules.
Look for formulas that pair D3 with vitamin K2, particularly the MK-7 form. This combination ensures that the calcium D3 helps absorb gets directed into bones and teeth rather than accumulating in arteries. A fat-soluble carrier oil like MCT, olive, or coconut oil further enhances absorption since D3 requires dietary fat to be properly utilized.
Purity matters with liquid supplements. Choose products that are free of artificial flavors, sweeteners, and unnecessary fillers. Organic certification, non-GMO verification, and third-party testing provide additional quality assurance. GMP-certified manufacturing is another indicator of a reliable product.
Consider practical factors like taste and bottle longevity. Unflavored options offer the most versatility for mixing into beverages, while light citrus or orange flavors can make direct consumption more enjoyable. Most liquid D3 bottles provide hundreds of servings, making them significantly more cost-effective per dose than capsule or gummy alternatives.
Frequently Asked Questions
What is liquid vitamin D3 and how is it different from capsules?
Liquid vitamin D3 is cholecalciferol suspended in a carrier oil, taken via dropper rather than swallowed as a pill. The primary advantage is faster absorption since the D3 is already dissolved in fat and doesn’t require capsule breakdown in the digestive tract. Liquids also allow precise dose adjustments by changing the number of drops.
How much liquid vitamin D3 should I take daily?
Most adults benefit from 1,000 to 5,000 IU daily, depending on baseline levels, sun exposure, and individual factors. The Endocrine Society suggests up to 2,000 IU daily for general maintenance, while those with deficiency may need higher amounts. A blood test measuring 25-hydroxyvitamin D is the best way to determine your optimal dose.
When is the best time to take liquid vitamin D3?
Take liquid D3 with a meal containing dietary fat for optimal absorption. Morning or midday dosing is generally preferred since vitamin D may influence circadian rhythm and could potentially interfere with sleep when taken late at night. However, consistency matters more than timing — pick a time that fits your routine and stick with it.
Can I take too much vitamin D3?
Yes, vitamin D toxicity (hypervitaminosis D) is possible with excessive supplementation, typically above 10,000 IU daily for prolonged periods without medical monitoring. Symptoms include nausea, excessive thirst, kidney stones, and dangerously elevated calcium levels. Doses above 5,000 IU daily should be taken under healthcare supervision with periodic blood testing.
Should I take vitamin D3 with K2?
Taking D3 with K2 is widely recommended because the two vitamins work synergistically. D3 increases calcium absorption from the gut, while K2 activates proteins that direct that calcium into bones and teeth rather than soft tissues like blood vessels. This pairing is especially important at higher D3 doses or for those focused on bone and cardiovascular health.
How long does it take for liquid vitamin D3 to raise my levels?
Most people see measurable increases in blood vitamin D levels within 2 to 4 weeks of consistent supplementation. However, reaching optimal levels (typically 30–50 ng/mL) may take 2 to 3 months depending on starting levels and dosage. Liquid forms may produce slightly faster initial increases due to enhanced absorption compared to solid forms.
