Best Vitamin D Supplements for Immune Support of 2026

Get your daily dose of essential Vitamin D with NatureWise Vitamin D3 Softgels. Formulated with 5000IU of Vitamin D3 in certified organic olive oil, it supports healthy teeth and bones, immune function, and muscle function. The highest potency softgels are easy to swallow and more bioavailable than powdered or tablet forms. Gluten-free and non-GMO, it's third party tested for purity and potency. The product is suitable for those with darker skin, the elderly, overweight individuals, and those who spend a lot of time indoors.

Sports Research Vegan Vitamin D3+K2 with Organic Coconut Oil combines two essential vitamins to support bone and immune health. The new softgel shell, containing added turmeric root powder, helps protect the active ingredients inside against UV light. Vitamin D3 helps maintain strong bones and supports a healthy immune system, while Vitamin K2 ensures that calcium gets deposited in your bones where it's needed and protects arteries from calcification. This vegan formula uses patented plant-based forms of both vitamins and is free of soy, gluten, gelatin, and carrageenan. The easy-to-swallow softgels are of superior quality, third-party tested, and manufactured in cGMP compliant facilities in the U.S.

Nature Made Vitamin D3 1000 IU Softgels are an easy way to support your immune, muscle, teeth, and bone health. The supplement provides 25mcg of Vitamin D3, the body's preferred form of Vitamin D, per serving, improving calcium absorption and providing immune support. The gluten-free product is sourced from high-quality ingredients, and each 300-day supply bottle contains 300 softgels. Adults can take one softgel daily with water and a meal. The United States Pharmacopeia (USP) has verified this product, and it is the number one pharmacist-recommended vitamin and supplement brand.

Nature Made Extra Strength Vitamin D3 5000 IU Softgels is a dietary supplement that helps improve your bone, teeth, muscle, and immune health. It is a 180-count bottle that can supply you for 180 days. This high-dose Vitamin D3 product is for people with higher Vitamin D needs and/or deficiency, as determined by a healthcare professional. The supplement is sourced from high-quality ingredients and is gluten-free with no color or artificial flavors added. Its recommended dosage is one softgel daily with water and a meal.

Nature Made Vitamin D3 K2 Softgels provide 5000 IU (125 mcg) of Vitamin D and 100 mcg of Vitamin K2 for a 30-day supply. It supports bone, teeth, muscle and immune health. Vitamin K2 helps direct calcium to bones and supports healthy artery function. It is designed for those with higher Vitamin D needs and/or deficiency. Made in the USA with quality global ingredients, gluten-free, and no synthetic dyes or artificial flavors.

Thorne Vitamin D3-5000IU Supplement - 60 Capsules is the perfect vitamin D supplement for you. Vitamin D3 supports healthy bones, teeth, muscles, cardiovascular health, and immune function. It is more potent and better absorbed than vitamin D2. This supplement is NSF Certified for Sport and free from gluten, eggs, tree nuts, peanuts, dairy, soy, fish, or shellfish. Thorne is trusted by 100+ pro teams and is the only supplement manufacturer to collaborate with Mayo Clinic on wellness research and content. Thorne is also a proud partner of 11 U.S. Olympic Teams.

Vitafusion Vitamin D3 Gummy Vitamins provide immune system support with 50mcg of Vitamin D per 2 gummy serving. The vitamins come in delicious peach and berry flavors, without artificial flavors or sweeteners, synthetic dyes, high fructose corn syrup, gluten, or dairy. The product has won the 2021 ChefsBest Excellence Award for its taste. As America's #1 gummy vitamin brand, Vitafusion delivers the best vitamin experience.

Nature Made Vitamin D3 2000 IU Softgels is a supplement that supports the health of the immune system, muscles, teeth, and bones. It contains 250 softgels for a 250-day supply, with each softgel providing 50mcg of Vitamin D3, which is the most preferred form of Vitamin D in the body. The supplement helps improve calcium absorption and sourced from high-quality ingredients that are gluten-free and without added colors or artificial flavors. Adults can take one softgel daily with water and a meal.

Bronson Vitamin D3 offers 10,000 IU of D3 per tablet, providing a 1-year supply in one bottle. The supplement supports healthy immune function by replenishing Vitamin D levels, which can be disrupted if outdoor time is limited. It is laboratory tested and GMO-free, gluten-free, and soy-free. Bronson's products are manufactured in their state-of-the-art facility that complies with the most current regulations to ensure purity, potency, and integrity. Bronson Vitamins has been trusted by medical professionals since 1960.

Metagenics Vitamin D3 10,000 IU with Vitamin K2 is a bioactive vitamin D supplement designed for patients with increased nutritional needs for vitamin D. It promotes healthy bone formation and mineralization, as well as supports immune and cardiovascular health. Additionally, this product is non-GMO and gluten-free.