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California Gold Nutrition

SimplyOne®, Vitamin D3, 1,250 mcg (50,000 IU), 50 Softgels

4.8 · 6302 reviews
651 ₽

California Gold Nutrition® SimplyOne® Vitamin D3 Formulated with Vitamin D3, Cholecalciferol Featuring a High Potency Dose of 1,250 mg (50,000 IU) Structural and Immune Support* Supports Strong Bones* Formulated without Gluten, GMOs, or Soy Scientifically-Developed Dietary Supplement Vitamin D is an essential nutrient, but it’s not uncommon for levels of this crucial vitamin to drop too low, either due to an unbalanced diet, insufficient sun exposure, or other factors. California Gold Nutrition® SimplyOne® Vitamin D3 can help supplement your diet with added vitamin D to help provide support for strong bones as well as structural and immune support.* Vitamin D3 Benefits Taking a daily supplement with vitamin D3 can help support numerous functions within the body. One of the primary benefits of vitamin D3 is its ability to promote calcium absorption, which may help support strong and healthy bones.* In addition, vitamin D3 can help support immune function and provide structural support to the body.* Adding a daily vitamin D3 supplement to your routine can help you add more of this important nutrient into your diet and may help prevent the negative effects of deficiency.* California Gold Nutrition® SimplyOne® Vitamin D3 contains a high potency dose of vitamin D3 as cholecalciferol, containing 1,250 mg (50,000 IU) of the vitamin. It is formulated without gluten, GMOs, or soy. Third-Party Tested Our products undergo quality testing where they are evaluated by an independent ISO-certified lab using scientifically-validated test methods to ensure authenticity, purity, and potency of ingredients. For added transparency, we make the results available to you in our iTested Verified Reports so you can see for yourself. iTested Verified Coming Soon ​

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California Gold Nutrition® SimplyOne® Vitamin D3 Formulated with Vitamin D3, Cholecalciferol Featuring a High Potency Dose of 1,250 mg (50,000 IU) Structural and Immune Support* Supports Strong Bones* Formulated without Gluten, GMOs, or Soy Scientifically-Developed Dietary Supplement Vitamin D is an essential nutrient, but it’s not uncommon for levels of this crucial vitamin to drop too low, either due to an unbalanced diet, insufficient sun exposure, or other factors. California Gold Nutrition® SimplyOne® Vitamin D3 can help supplement your diet with added vitamin D to help provide support for strong bones as well as structural and immune support.* Vitamin D3 Benefits Taking a daily supplement with vitamin D3 can help support numerous functions within the body. One of the primary benefits of vitamin D3 is its ability to promote calcium absorption, which may help support strong and healthy bones.* In addition, vitamin D3 can help support immune function and provide structural support to the body.* Adding a daily vitamin D3 supplement to your routine can help you add more of this important nutrient into your diet and may help prevent the negative effects of deficiency.* California Gold Nutrition® SimplyOne® Vitamin D3 contains a high potency dose of vitamin D3 as cholecalciferol, containing 1,250 mg (50,000 IU) of the vitamin. It is formulated without gluten, GMOs, or soy. Third-Party Tested Our products undergo quality testing where they are evaluated by an independent ISO-certified lab using scientifically-validated test methods to ensure authenticity, purity, and potency of ingredients. For added transparency, we make the results available to you in our iTested Verified Reports so you can see for yourself. iTested Verified Coming Soon ​

Customer reviews

5.0
verified purchase
Highly recommended

My vitamine D3 level was 25-OH(under normal) … after using it 2 months I have 137-OH (normal), also feeling the difference. Thanks i bought again for my family

10/22/2025
5.0
verified purchase
Convenient and great value

I’ve been taking 50,000 IU daily for over two years. I had to take 10 capsules of 5,000 IU everyday. A little inconvenient, now I can get all that in one capsule, so this is awesome. By the way, I’ve never gotten sick ever since I started with that high dose. You do need to to take at least 1 g of Magnesium glycinate and at least 360 mcg of Vitamin K2, if you want to experiment with this.

7/8/2026
5.0
verified purchase
PNW must have

I take a lower dose D3 K2 combo on the daily but living in the Pacific Northwest sometimes I need a little extra so I’ll take one of these 50,000 IU softgels in it gives me the boost I need.

11/30/2025
4.0
verified purchase
Vitamin D3

If you can't get out in the sun, or you are protecting your skin from sun damage and need to limit you sun exposure, I would recommend a high quality vitamin D such as these. As for dosage, that's individual, but I take one to two Vitamin D supplements each day.

3/15/2026
5.0
verified purchase
great booster

great size and dosage. the delivery was absolutely quick. the quality is always good from this brand. Great immunity and effect. I take this like each week to boost my immunity. The size is small and there is no after taste. Good for bone absorption and i take along with other minerals. Bought 3 times. great packaging and absolutely worth the money.

3/2/2026
5.0
verified purchase

I’ve been using this supplement for a while and I’m really impressed with the quality. The ingredients feel clean and effective, and I noticed a difference in my energy and overall well-being. The packaging is great, the price is reasonable, and the delivery was fast as usual with iHerb. I appreciate that it’s easy to take and doesn’t cause any discomfort. I will definitely keep using it and highly recommend it to anyone looking to improve their daily health routine.

12/4/2025
5.0
verified purchase
Good

Very good quality!ingredients are healthy.the size is saving.the dosage is the one i need for my dad.it is great for immunity.it is great to use with Sun exposure.the package is nice.the effect is great for my dad's bones after his car accident. it is great for vitamin d deficiency.it is absorbed greatly.it doesn't have a bad taste.

8/22/2024
5.0
verified purchase

I’ve been using this supplement for a few weeks now, and I’m honestly impressed. I feel better, lighter, and more energized. Definitely worth trying! After taking this supplement consistently, I noticed real changes—better digestion, less , and improved energy. I’m glad I gave it a try! the size of the capsules is also good and so is the quality. I love the ingredients

4/7/2026
5.0
verified purchase
Very good

Very good package size and ingredients , good taste , no side effect

4/4/2026
5.0
verified purchase
Good

Vitamin D3 50,000 IU is a high-potency supplement formulated to support bone, immune, and overall health. The active ingredient, cholecalciferol, is a highly bioavailable form of vitamin D that helps the body absorb calcium and phosphorus, crucial for strong bones and teeth. This supplement is particularly useful for individuals with vitamin D deficiency, which can cause fatigue, bone pain, muscle weakness, or compromised immunity. Vitamin D3 works by regulating calcium levels in the blood and supporting the activity of the immune system. Packaged in a compact bottle with capsules or softgels, it is easy to take once weekly or as directed by a healthcare professional. The product has a neutral taste and is free from artificial additives, making it convenient for regular supplementation. Its high-potency formula ensures effective correction of deficiency and long-term maintenance of optimal vitamin D levels.

3/15/2026