Best Kirkland Signature Vitamin D Supplements in 2026

Immune, muscle, teeth and bone health support supplement: contains one 180 count bottle of Nature Made Vitamin D3 1000 IU (25 mcg) Softgels for a 180-day supply

Nature Made Vitamin D 1000 IU softgels support bone health, teeth health, muscle health, and provide immune support

These Vitamin D 1000IU softgels help improve calcium absorption and contain 25mcg of Vitamin D 3, the body’s preferred form of Vitamin D

USDA certified organic Vitamin D: Only products with USDA certified organic logo are truly organic!

High Quality Laboratory Tested: This Vitamin D3 contains the same Biological form of vitamin D produced by your body. Gluten free, soy free, wheat free and nut free

The sunshine vitamin: Helps to support teeth and bone health, provide immune support, and promote healthy muscle function.*

SUPPORTS BONE HEALTH (1): Nature's Bounty Calcium Plus Vitamin D3 has 1200 mg of calcium, the primary mineral which helps maintain bone strength and helps support neuromuscular health

WITH ADDED VITAMIN D3 1000 IU: Each softgel contains 1000 IU of vitamin D3 which helps with calcium absorption and immune support (1)

GLUTEN, DAIRY, AND WHEAT FREE: Nature's Bounty Calcium Plus Vitamin D3 rapid release softgels are gluten free, dairy free, wheat free, and contain no artificial flavors

JUST 1 CAPSULE A DAY: They say one is the loneliest number. But when it comes to our omega 3 fish oil supplements, it's all you need for the day. Just one softgel has 1,040 milligrams of Omega-3 with 690 mg of EPA & 260 mg of DHA in the triglyceride molecular form. Sourced exclusively from wild Alaskan Pollock, our fish oil liquid has more essential fatty acids per capsule than Krill, Flaxseed or Algae Oils.

HEAD, HEART & BEYOND: Nature has given us some amazing gifts. Like Omega-3 fatty acids. Found in fish oil, these nutrients (also known as EPA and DHA) may help support cardiovascular health, brain function and the immune system - and our triple strength Omega-3 Powerhouse supplements are packed with them.

GOOD RIDDANCE, FISH BURPS: Our burpless fish oil, one-a-day Omega-3 fatty acid supplements go down without the aftertaste of some lower quality capsules due to our 10-step oil refinement process where oxygen is kept away throughout the entire process to ensure the utmost freshness and quality. Pescatarian friendly, non-GMO verified, hexane, soy and gluten free.

OMEGA 3 FATTY ACIDS: MAV Fish Oil contains unique essential fats including EPA and DHA known to decrease inflammation and support overall health and wellness.* Our formula contains more EPA and DHA per serving than competing brands.

NATURALLY SOURCED, PREMIUM SERIES: Omega 3 fatty acids are widely considered one of the most crucial supplements you can put in your body.* Our Premium Series Omega-3 Fish Oil is 100% natural and pure with no additives. One serving contains 3600mg of Fish Oil, including 864mg of DHA and 1296mg of EPA per serving.

PURE SEA-HARVESTED PELAGIC FISH OIL: Get all the health benefits of 100% pure Sea-Harvested fish oil. This Fish Oil Supplement supports brain health, healthy joints, mood, skin, hair, and more.*

HIGH STRENGTH, SUPER ABSORBABLE B complex vitamins including thiamine (B1), Riboflavin-5-phosphate (B2), Niacinamide (flush free Niacin - B3), Calcium D-pantothenate (B5), D-Biotin (B7) & Pyridoxal-5-Phosphate (Vit B6)

METHYLATED VITAMIN FORMS that the body utilises immediately: bioavailable folate as methylfolate & methylcobalamin (Vit B12) - no poorly absorbed cyanocobalamin

SUSTAINED RELEASE provides all-day nutrient coverage and twice daily dosing optimises B12 levels

High-potency, bioactive vitamin D with vitamin K

Designed for patients with demonstrated increased nutritional needs for vitamin D*

Vitamin D promotes healthy bone formation and mineralization and supports immune and cardiovascular health*

Vitamin D3

Kirkland Signature

DEFY BONE AGING: Citracal Maximum Plus is a sugar free calcium supplement, providing 650 mg of calcium per serving to help support bone health as part of your overall wellness and fitness regimen; just 2 caplets twice a day

IMPORTANCE OF CALCIUM: This essential mineral is needed for bone health; Maximum Plus is made with Calcium Citrate

MAXIMUM STRENGTH: Contains 650 mg of Calcium Citrate with 1000 IU of vitamin D3 per serving that helps absorb dietary calcium; also contains essential minerals – zinc, copper and manganese to support bone health

Citracal Slow Release 1200 is a sugar free calcium supplement; blending 1200 mg of Calcium Carbonate and Citrate per serving as part of your overall wellness and fitness regimen; just 2 caplets a day

Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery

IMPORTANCE OF CALCIUM: Petites is made with Calcium Citrate.

ALGAECAL PLUS NATURALLY OCCURRING TRACE MINERALS: Calcium is essential; Raw Calcium is the first raw, plant-based formula with 1100mg of AlgaeCal Raw, a certified organic nature made calcium with trace minerals

ALGAE SOURCED CALCIUM MAGNESIUM BONE AND JOINT SUPPLEMENT: 357mg of algae sourced Magnesium for normal muscle and nerve function and a healthy immune system; this approach supplies highly absorbable magnesium as nature intended

VITAMIN K, D AND C FOR IMMUNITY: Vitamin D helps the body absorb calcium; Raw Calcium delivers a K2 D3 combination of 1,600 IU Raw Food-Created vitamin D3 plus 50mcg Vitamin K2 as MK7, along with 50mg of Vitamin C for immune support

150 count bottle of Caltrate Minis 600 Plus D3 Plus Minerals Calcium and Vitamin D Supplement Tablets

Dual benefit bone support supplements include calcium and vitamin D3 for bone strength and minerals for flexibility (2, 3)

Caltrate Plus Minerals supplement includes key essential minerals like zinc, copper and manganese to help support collagen production to facilitate more resilient bones (2)

✔️ TRIPLE STRENGTH OMEGA-3 ACTION - Our fish oil delivers 3X the omega-3s compared to what you get with some other fish oil supplements. Each daily serving of 2 softgels provides 2,200 mg of fish oil, including 1,400 mg of EPA and 480 mg of DHA.

✔️ OMEGA-3 for HEART, EYE, BRAIN, SKIN & EYE HEALTH* - Science has shown that not only do the omega-3s in fish oil offer cardiovascular support for men and women, but they also promote brain health, and help keep your skin and eyes healthy as you age.*

✔️ NO FISHY AFTERTASTE - There’s nothing worse than the fishy aftertaste left by lower-quality fish oils. Our omega-3 supplement is highly concentrated to give you clean, high quality oil with no fishy burps or aftertaste.

Helps build strong bones

Involved in proper muscle contraction impulse

Helps support neuromuscular health

100 count bottle of Caltrate Gummy Bites 500 mg Calcium and Vitamin D Supplement in black cherry, strawberry and orange flavors

Calcium supplement that helps support healthy bones and muscles (1)

High levels of vitamin D3 in these bone health supplements help maximize calcium absorption and maintain healthy bones (1, 2)

Plant-based Nutrients: Made with Plant-Based, Whole Food nutrients for healthy bone support, including Calcium and Magnesium from Marine Algae, Vitamin D3 from Lichen, and Vitamin C from Organic Acerola Cherries.

Complete Formula: Includes 10 vitamins & minerals that work together to support healthy bone building and help maintain bone density,* including Vitamin D, K2, C, Zinc, Magnesium, Manganese, Potassium, Boron, and Silica.

Healthy Calcium Absorption: Vitamin D3, Magnesium, and Vitamin K2 are crucial co-factors that help your body to absorb and use calcium properly, so that it goes into your bones rather than your arteries and soft tissues.*

3-IN-1 BENEFITS: Supports bone density and normal bone creation, supports cardiovascular health, and healthy joint support*

ORGANIC CALCIUM: USDA Organic plant-based calcium from sustainably harvested Red Marine Algae that’s rich in bone-nourishing calcium plus magnesium and 70+ trace minerals*

FORMULATED FOR ABSORPTION: We believe the best calcium supplements are easily recognized and absorbed by the body, so ours is expertly formulated with Vitamin D3 for better absorption, Vitamin K2 to direct calcium to bones (where you need it most)

Plant Based Calcium Supplement : AlgaeCal is a natural red algae that is hand-harvested. This organic plant supplies all bone support minerals, including calcium, selenium, and magnesium. It is a natural calcium supplement with Vitamin D & K2 which supports fracture healing.

Red Algae Organic Calcium : Most calcium supplements are made from rocks, and don't contain all bone support minerals needed to increase bone density. AlgaeCal is a natural calcium supplement that contains ALL of the minerals like magnesium, vitamin D & K2 to make bones stronger.

Bone Strength Supplements : AlgaeCal is science backed by studies showing that the combination of vitamins and minerals in each serving can help support healthy bones for life. AlgaeCal is an organic calcium with vitamin D and K2 making it the perfect supplement for bone strength. These statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

Calcium with Vitamin D3 Supplement: Our calcium supplements for women and men activate the matrix GLA protein to bind excess calcium & promote arterial flow & flexibility.

Superior Vegan Calcium Capsules: Our Vitamin D calcium supplements help intercept the formation of calcium in joints & artery walls. Also contains Vitamin K2 for absorption and B12 for brain and bone health.

Extra-Strength Calcium and Vitamin D3: A combination of Calcium 600 mg with Vitamin D3 and K2, plus a dose of 1000 mcg of vitamin B12 for natural support of all its holistic benefits.

Plant Based Calcium Supplement : AlgaeCal Plus is a Powerful plant based serving of 16 bone supporting nutrients. It’s sourced from a rare red algae that naturally contains all clinically supported bone building minerals, including magnesium, boron, copper, manganese, silicon, zinc, and more. It is a natural calcium supplement with Vitamin D & K2 which supports fracture healing.

Bone Health : Strontium Boost slows down the cells that eat-away at our old bone, and speeds-up the cells that build healthy new bone – resulting in stronger bones in less time. These statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

Added Vitamin D : Along with the 13 clinically supported minerals for bone strength, we’ve included Vitamin K2, C, and D3, plus extra boron and magnesium, to complete the formula and ensure the natural minerals in Algaecal Plus calcium supplement get to where it's needed, in your bones.

Purely Wild: Pure Catch delivers essential ingredients found in wild Alaska salmon. Each serving provides 600 mg of omega 3 fatty acids, including EPA and DHA 200 IU of naturally-occurring vitamin D3 , vitamin A, and astaxanthin.

Purely Caught: Pure Catch Wild Alaska Salmon Oil supplements are made from wild-caught, certified sustainable Alaska salmon, which are naturally gluten free and low in mercury.

Purely Yours: Our salmon oil comes in flexible, resealable pouches, perfect for at home or on the go. Making it convenient for you to support your healthy: heart, joints, and skin.

Plant Based Calcium Supplement : AlgaeCal is a natural red algae that is hand-harvested. This organic plant supplies all bone support minerals, including calcium, selenium, and magnesium. It is a natural calcium supplement with Vitamin D which supports fracture healing.

Red Algae Organic Calcium : Most calcium supplements are made from rocks, and don't contain all bone support minerals needed to increase bone density. AlgaeCal is a natural calcium supplement that contains ALL of the minerals like magnesium and vitamin D to make bones stronger.

Bone Health & Strength Supplement : AlgaeCal is science backed by studies showing that the combination of vitamins and minerals in each serving can help support healthy bones for life. AlgaeCal plant based calcium with vitamin D is the perfect supplement for bone strength.

TOP PICK BY VERYWELLHEALTH: selected as the top supplement for bone health by VeryWellHealth

STRONG, HEALTHY BONES: TheraCal D2000 contains 1000 mg of calcium (per 4 tablets), vitamin D3, vitamin K2 and other nutrients essential for promoting bone strength and overall bone health.*

OPTIMAL FORMULATION: TheraCal D2000 takes a multi-nutrient approach to bone health with 1000 mg of calcium citrate, 55 mcg (2,000 IU) of vitamin D3, 100 mcg of vitamin K2, 200 mg of magnesium, and 3 mg of boron. These ingredients are essential for good bone health and play an important role in calcium absorption.*

Get our New AlgaeCal Bundle: Includes a bottle of our AlgaeCal Plus organic calcium supplement for women & men and a copy of the book by Lara Pizzorno: "Healthy Bones Healthy you". Whit this bundle, you will have all you need to start your journey toward Stronger Bones For Life.

Red Algae Organic Calcium : Most calcium supplements are made from rocks, and don't contain all bone support minerals needed to increase bone density. AlgaeCal is a natural calcium supplement that contains ALL of the minerals like magnesium, vitamin D & K2 to make bones stronger.

Added Vitamin D : We’ve enriched the pure red algae supplement powder with Vitamins C, D3, and K2, plus additional boron and magnesium. These added ingredients make sure the natural minerals in Algaecal Plus calcium supplement get to where it's needed, in your bones.