Vitamin D-3, High Potency, 2,000 IU, 240 Softgels
by NOW Foods
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NOW Foods delivers 2,000 IU of cholecalciferol — the most bioavailable form of vitamin D — suspended in olive oil inside a small bovine gelatin softgel. Best for Adults maintaining adequate vitamin D levels through autumn and winter with limited sun exposure and Families wanting a single affordable bottle that covers multiple people at a daily dose.
According to the AIScored 0–100 scoring system, Vitamin D-3, High Potency, 2,000 IU, 240 Softgels by NOW Foods scores 82.0/100, ranking #3 out of 35 products in Vitamin D (2026). Strongest category: Side Effects (93.0/100). Weakest: Certifications (58.0/100).
Is Vitamin D-3, High Potency, 2,000... worth buying?
“NOW Foods Vitamin D-3 scores 87/100 for its small, tasteless softgels that reviewers consistently praise — the kind of daily supplement you'll actually want to take. With 240 softgels lasting eight months at a competitive price, it's exceptional value for an evidence-based maintenance dose.”
What Do Reviewers Say About Vitamin D-3, High Potency, 2,000 IU, 240 Softgels?
Sample excerpts from currently available source material used in this product analysis.
"Good vitamin D. Excellent quality from this company. They have a lot of vitamins and supplements, I really like them. The ingredients are perfectly selected. Health in every capsule. Don't skip a dose. The capsule size is very convenient. T..."
"Good. I was pleased with the quality. The ingredients are natural. Vitamin D is especially relevant and beneficial for health these days. The capsules are small, and the dosages are varied, making it easy to find the right one. It boosts im..."
"Really jelps me sleep, I. Vitamin D3, also known as cholecalciferol, is a form of vitamin D that helps the body absorb calcium and phosphorus for strong bones, supports the immune system, and is involved in muscle and heart health. It can b..."
"Reliable Vitamin D3 for daily support. I have been buying this vitamin D3 for several times now — both for myself and for my mother. I really like the quality and convenient dosage of 2000 IU. The capsules are small, easy to swallow and wel..."
"The quality of the brand is proven. The composition is safe, contains high-quality ingredients. The packaging is average. The size of the capsules is small, the taste is neutral. The dosage is preventive, for daily use. Vitamin D3 is import..."
How does Vitamin D-3, High Potency, 2,000 IU, ... score?
Detailed score breakdown and key findings from our analysis of 50 reviews across 1 source.
Pros
- +Small, tasteless softgels praised by nearly every reviewer — easy to swallow for adults and children alike
- +240-count bottle lasts 8 months at one per day, making the per-dose cost very low
- +Cholecalciferol delivered in olive oil — correct form and carrier for fat-soluble vitamin absorption
- +Reviewers consistently report energy, mood, and immunity improvements over autumn-winter use
- +Clean label: no unnecessary additives, non-GMO, and holds Kosher and Halal certifications
Cons
- -Bovine gelatin capsule rules out vegans and some vegetarians — no plant-based equivalent in this line
- -No independent third-party potency or purity testing (no iTested, NSF, or USP verification)
- -2,000 IU is a maintenance dose, not a correction dose — several reviewers with confirmed deficiency needed higher amounts or separate high-dose protocols
- -One reviewer flagged the lid pops open unexpectedly rather than staying sealed between uses
Best For
Watch Out
- !Test serum 25(OH)D levels before and after — multiple reviewers recommend this, and 2,000 IU may not be enough to correct an established deficiency
- !Several reviewers pair it with vitamin K2 (MK-7 form) to direct calcium to bones rather than soft tissue — worth considering if taking long-term
- !Take with a fat-containing meal for maximum absorption; taking on an empty stomach reduces uptake of fat-soluble vitamins
- !Not suitable for vegans or those avoiding bovine-derived products due to the gelatin capsule shell
What is Vitamin D-3, High Potency, 2,000 IU, 240 Softgels?
Vitamin D-3, High Potency, 2,000 IU, 240 Softgels is a vitamin d product by NOW Foods, scoring 82.0/100 on AIScored.
- • Product overview Description Larger count Bone and immune health Supports healthy teeth Promotes muscle health Food supplement Non-GMO Kosher – contains gelatine Family owned since 1968 Packaged and quality tested in the USA Halal GMP quality assured NOW® Vitamin D-3 softgels supply this key vitamin in a highly absorbable liquid softgel form.
- • Vitamin D is normally obtained from the diet or produced by the skin from the ultraviolet energy of the sun.
- • However, it is not abundant in food.
- • As more people avoid sun exposure, vitamin D supplementation becomes even more necessary to ensure that your body receives an adequate supply.
- • Suggested use Take 1 softgel daily with a meal.
- • Other ingredients Extra virgin olive oil, softgel capsule [bovine gelatin (BSE-free), glycerin, water] and safflower oil.
- • Not manufactured with yeast, wheat, gluten, soya, corn, milk, egg, fish, shellfish or sesame ingredients.
- • Produced in a GMP facility that processes other ingredients containing these allergens.
- • Warnings For adults only.
- • Consult a physician if pregnant/nursing, taking medication, or have a medical condition.
- • Keep out of reach of children.
- • Natural colour variation may occur in this product.
- • Store in a cool, dry place after opening.
- • Disclaimer While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site.
- • Although items may occasionally be despatched with alternative packaging, freshness is always guaranteed.
- • We recommend that you read labels, warnings and directions of all products before use and do not rely solely on the information provided by iHerb.
- • This website has been machine translated as a courtesy to customers.
- • iHerb does not represent or warrant that the translations are complete or error-free and iHerb is not responsible for any translation errors or omissions.
- • Supplement information Serving Size: 1 Softgel Amount Per Serving %Daily Value Vitamin D3 (as Chol.
Is Vitamin D-3, High Potency, 2,000 IU, 240 Softgels Independently Tested?
No Third-Party Testing Visible
We could not find evidence of independent third-party testing for this product. This doesn't mean it's unsafe, but independent verification provides additional assurance.
How We Score Supplements
Our methodology analyses review data, ingredient science, and product information, then scores each product on a 0-100 scale across evidence-based categories:
Effectiveness
How well the product delivers its claimed benefits, based on reviews and ingredient evidence.
Ingredient Quality
Bioavailable forms, clinically effective dosages, clean label, minimal fillers.
Value for Money
Price relative to ingredient quality, dosage count, and effectiveness.
Side Effects Profile
Higher score = fewer side effects. 100 means virtually no adverse reactions reported.
Certifications & Testing
Third-party lab testing, GMP certification, and independent quality verification.
Overall Score
Weighted combination of all factors. Our bottom-line recommendation.
Price History (90 days)
Quick Facts
- Vegan
- No
Frequently Asked Questions
Is Vitamin D-3, High Potency, 2,000 IU, 240 Softgels worth buying in 2026? ▼
What is the best price for Vitamin D-3, High Potency, 2,000 IU, 240 Softgels in the UK? ▼
What are the pros and cons of Vitamin D-3, High Potency, 2,000 IU, 240 Softgels? ▼
Is Vitamin D-3, High Potency, 2,000 IU, 240 Softgels third-party tested? ▼
What the Data Says About Vitamin D
Why do 97% of UK vitamin D supplements lack third-party certification?
Only 1 out of 35 vitamin D products we scored has independent certification. That's 97% without any third-party verification of purity, potency, or label accuracy.
This is worse than most supplement categories. The reason is simple: UK law doesn't require it, and testing costs money. Most vitamin D brands sell on price alone, especially in the D3-only space where the raw ingredient is cheap. Certification adds cost that budget brands won't absorb.
What does this mean for you? Without third-party testing, you're trusting the manufacturer's label claims. A 2021 study in Nutrients found that vitamin D supplements varied from 52% to 135% of their labelled dose. That's a problem if you're relying on a specific daily intake.
Among the 35 products we scored, the top performers are all from brands with strong manufacturing track records: NOW Foods D3 5000 IU and Thorne Vitamin D + K2 both score 87/100 overall. Thorne holds the highest certification score in the category at 85/100. If independent testing matters to you, that's the product to look at.
Do you need vitamin K2 with high-dose vitamin D?
Probably yes at high doses, and our data backs the pairing. Thorne Vitamin D + K2 Liquid is the only D3+K2 combo product in our 35-product database that scores 87/100 overall, matching the top-ranked D3-only options from NOW Foods. It also holds the highest certification score in the category at 85/100.
Here's the science behind it. Vitamin D increases calcium absorption from food. Vitamin K2 activates proteins that direct that calcium into bones and teeth, keeping it out of your arteries and soft tissue. At standard doses (1000-2000 IU daily), most people get enough K2 from diet to handle the extra calcium. At 4000-5000 IU daily, the calcium load increases enough that K2 becomes a more serious consideration.
The Endocrine Society doesn't yet include K2 in its vitamin D guidelines. But a growing body of research, including a 2019 meta-analysis in International Journal of Molecular Sciences, shows the D3+K2 combination improves bone mineral density more than D3 alone.
If you eat K2-rich foods regularly (natto, hard cheese, egg yolks, chicken liver), a standalone D3 product like NOW Foods D3 5000 IU 360 Softgels (87/100) is a solid choice. If your diet is low in K2, or you're taking 4000+ IU of D3 daily, Thorne D + K2 covers both bases in one product.
Disclaimer: AIScored provides research-backed summaries based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Affiliate links may earn us a commission at no extra cost to you.
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