Best Metagenics Vitamin D Supplements in 2026

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*

High-potency, bioactive vitamin D with vitamin K

Provides 5,000 IU per softgel of vitamin D (as D3), designed for greater absorption

Includes bioavailable forms of vitamin K2 (menaquinone-7) to complement vitamin D

Supports bone, cardiovascular, and immune health*

Provides high-potency bioavailable vitamin D3 (325 mcg/5000 IU)

Available in easy-to-swallow softgels

Proprietary, patented vitamin C formula that features a buffered delivery system designed to help prevent the potential stomach upset sometimes associated with high vitamin C intake*

Supports healthy immune function and is a good source of antioxidants from vitamin C*

Each tablet contains 1,000 mg vitamin C

Isoflavone activated support formula

Supports healthy immune function, bone density, and overall health*

Delivers soy isoflavones—genistin may help facilitate the body’s utilization of vitamin D3*

This non-GMO and gluten-free product delivers vitamin D3 solubilized in oil to support absorption in the intestinal tract*

Supports bone, cardiovascular, and immune health*

2,275 servings | Designed for easy, flexible dosing

The package dimension of the product is 2.3"L x 2.3"W x 4.1"H

Country of origin is United States

During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.

Bioactive vitamin D in easy-to-swallow microtablet delivery form

Supports bone, cardiovascular, and immune health*

Delivers high levels of vitamin D to replenish vitamin D status*

Non-GMO & gluten-free product designed to provide a multiple mechanistic approach to support immune system health*

Provides 333 mg vitamin C, 8.3 mcg (333 IU) vitamin D, and 5 mg zinc per serving

Formula features Ultra Potent-C—developed for enhanced cellular uptake of vitamin C*

Non-GMO & gluten-free bone support featuring MCHC, a highly absorbable crystalline compound, and 50 mcg (2,000 IU) vitamin D*

MCHC is a source of calcium

MCHC also provides minerals and intact organic factors including collagen

Each MetaKids D3 Liquid dose provides 25 mcg (1,000 IU) vitamin D3

This product is non-GMO and gluten-free & supports bone and immune health*

Ideal for kids who prefer not to swallow tablets or capsules

Provides essential vitamins and minerals to nutritionally support healthy growth and development*

Each non-GMO & gluten-free serving contains 60 mg vitamin C, 2 mg vitamin B6, 75 mcg iodine, and 6 mg zinc

Provides 100 mg calcium and 7.5 mcg (300 IU) vitamin D to support bone, tooth, and immune health in growing children*

supports bone health

softgels

Ultra Potent-C is a proprietary, patented, stomach-friendly vitamin C formula containing 500 mg vitamin C that features a buffered delivery system designed to help prevent the potential stomach upset sometimes associated with high vitamin C intake*

Ultra Potent-C supports healthy immune function and is a good source of antioxidants from vitamin C*

Metagenics D3 10,000 + K is high-potency, bioactive vitamin D with vitamin K designed for people with demonstrated increased nutritional needs for vitamin D*

This brand-new product provides vegetarian, bioavailable vitamin D3 (62.5 mcg/2,500 IU).

Supports bone, cardiovascular, and immune health: Vitamin D is important for maintaining healthy bone structure and is an important nutritional factor in the proper mineralization of bones. Vitamin D sufficiency may contribute to cardiovascular health and function. Vitamin D is important for maintaining healthy immune function.

With only three ingredients, this small tablet can be either swallowed or chewed, as it has a neutral, slightly sweet taste.

Isoflavones aid in utilization of vitamin D3 for enhanced health benefits

Aids in maintaining healthy bone strength and immune function

Formerly Iso D3

This brand-new product provides vegetarian, bioavailable vitamin D3 (25 mcg/1,000 IU).

Supports bone, cardiovascular, and immune health: Vitamin D is important for maintaining healthy bone structure and is an important nutritional factor in the proper mineralization of bones. Vitamin D sufficiency may contribute to cardiovascular health and function. Vitamin D is important for maintaining healthy immune function.

Get 150 1,000 IU servings in a single bottle; this easy-to-use spray has a unflavored and neutral taste.

D3 10,000 + K is a combination of two elements: vitamin D3 (also known as cholecalciferol) and potassium (represented by the letter K).

Vitamin D3 is a fat-soluble vitamin that plays a crucial role in maintaining healthy bones and teeth, supporting immune function, and promoting calcium absorption in the body.

Potassium is an essential mineral that is involved in numerous bodily functions, including maintaining proper heart and muscle function, regulating fluid balance, and supporting nerve transmission.

Each non-GMO, gluten-free, and vegetarian tablet contains 100 mg chasteberry fruit extract, 40 mg black cohosh root & rhizome extract, and 60 mg Ashwagandha root extract

Supports menstrual regularity and reproductive health*

Helps to ease menstrual cramps *

Immune Active provides high potency vitamin C and zinc and features quercetin, NAC, and EGCG to help support a healthy immune response and promote antioxidant processes.*

Proprietary, patented vitamin C formula that features a buffered delivery system designed to help prevent the potential stomach upset sometimes associated with high vitamin C intake*

Supports healthy immune function and is a good source of antioxidants from vitamin C*

Immune Active provides high potency vitamin C and zinc and features quercetin, NAC, and EGCG to help support a healthy immune response and promote antioxidant processes.*

In addition to high-potency vitamin C and zinc, Immune Active offers additional key nutrients to support immune health all in one formula.*

Featuring 150 mg EGCG (as decaffeinated+ green tea leaf extract) per serving. EGCG is categorized as a flavonoid polyphenol, a compound typically found in plants. Polyphenols can help promote antioxidant processes in the body.*

Each non-GMO, gluten-free, and vegetarian tablet contains 17 mg of zinc from zinc-carnosine

High-potency zinc-carnosine complex is formulated to provide relief of minor stomach discomfort*

Zinc-carnosine supports the healthy ecology and integrity of the stomach lining*