Vitamin D3, 50 mcg (2,000 IU), 360 Fish Gelatin Softgels
by California Gold Nutrition
Compare Prices
At 2,000 IU of cholecalciferol per softgel, this sits at the lower end of what most adults need for repletion — adequate for maintenance in people who aren't severely deficient, but one reviewer moved to 10,000 IU for psoriasis and another found the dose simply too low for their needs. Best for Adults in northern climates supplementing through autumn and winter at a standard maintenance dose and Budget-conscious buyers who want a clean, no-frills D3 without unnecessary additives.
According to the AIScored 0–100 scoring system, Vitamin D3, 50 mcg (2,000 IU), 360 Fish Gelatin Softgels by California Gold Nutrition scores 78.0/100, ranking #22 out of 35 products in Vitamin D (2026). Strongest category: Side Effects (94.0/100). Weakest: Certifications (42.0/100).
Is Vitamin D3, 50 mcg (2,000 IU), 3... worth buying?
“California Gold Nutrition's Vitamin D3 offers genuine value: 360 softgels provides about a year's supply at a competitive price, with a clean formula free from gluten, soy, and GMOs. Users consistently praise how small and easy these softgels are to swallow, and at 84/100, it's clearly the no-nonsense option when you just want your vitamin D.”
What Do Reviewers Say About Vitamin D3, 50 mcg (2,000 IU), 360 Fish Gelatin Softgels?
Sample excerpts from currently available source material used in this product analysis.
"excellent d3. The quality is good, the ingredients are natural, my health has improved, the size is convenient, the dosage matches the description, my immunity has improved, there is no sun in the winter, so we use D3, the packaging is conv..."
"Excellent! 👍🏻. I was a bit off on the dosage; 2000 IU is a bit low for me. But the quality of this brand's vitamin D is quite acceptable. It effectively raises and maintains my vitamin D levels, which I monitor through tests. The package si..."
"magnificence. Scent, Use, Quality, Size, Age, Package, Benefit, Formula, Winter, Moisturizing, Sensitive Structure, Amazing Product, I loved it and bought it more than once, it's unique and its effect is fast, everyone buys it without hesit..."
"Good product!. I've been taking vitamin D3 for some time now and have noticed significant changes in my well-being. I'm less tired, my mood is more stable, and even my sleep has improved. The capsules are convenient—easy to swallow, with no..."
"Price - quality, as an option to consider + K2 in the form of MK-7 (directs vitamin D to the bones and protects blood vessels). 1. Supports immunity Helps the body better defend itself against viruses and infections. 2. Gives more energy an..."
How does Vitamin D3, 50 mcg (2,000 IU), 360 Fi... score?
Detailed score breakdown and key findings from our analysis of 50 reviews across 1 source.
Pros
- +Tiny, tasteless softgels — consistently praised for easy swallowing across dozens of reviews
- +Clean label: no gluten, soy, GMO, or unnecessary fillers; just cholecalciferol, safflower oil, and fish gelatin
- +360 softgels at a competitive iHerb price — roughly a year's supply at one daily
- +Cholecalciferol (D3) in an oil-based capsule is the optimal form for absorption of this fat-soluble vitamin
- +Multiple reviewers confirm maintained blood levels through regular testing, including seasonal winter use
Cons
- -2,000 IU is a maintenance dose, not a therapeutic one — people with confirmed deficiency will likely need 4,000–10,000 IU
- -Contains fish gelatin (tilapia), ruling it out for vegans, vegetarians, and those with fish allergies
- -No third-party testing verified per product specs, despite claims in some reviews
- -Safflower oil is a functional but unremarkable carrier — less ideal than MCT or olive oil for those watching omega-6 intake
Best For
Watch Out
- !Fish allergy risk — gelatin sourced from tilapia; not suitable for pescatarian-avoiding or fish-allergic users
- !Confirmed vitamin D deficiency requires higher doses; 2,000 IU alone is unlikely to correct low levels quickly
- !No verified third-party certification per product specs — claims of iTested or USP in some reviews are not confirmed
What is Vitamin D3, 50 mcg (2,000 IU), 360 Fish Gelatin Softgels?
Vitamin D3, 50 mcg (2,000 IU), 360 Fish Gelatin Softgels is a vitamin d product by California Gold Nutrition, scoring 78.0/100 on AIScored.
- • Product overview Description Featuring Vitamin D3 (Cholecalciferol) Supports Healthy Bones and Teeth* Supports Healthy Immune System Function* California Gold Nutrition® Vitamin D3, 50 mcg (2,000 IU) is a vitamin D supplement as cholecalciferol in fish gelatin softgels.
- • iTested Verified Suggested use Take 1 softgel daily, with food.
- • Best when taken as directed by a qualified healthcare professional.
- • Other ingredients Main Ingredients Vitamin D (as D3, Cholecalciferol) Other Ingredients Safflower Oil and Fish Gelatin Softgel (Gelatin, Purified Water, Vegetable Glycerin).
- • Contains: Fish (Tilapia) Not manufactured with milk, eggs, crustacean shellfish, tree nuts, peanuts, wheat, soy, sesame, or gluten.
- • Produced in an FDA-registered, third-party audited, and cGMP-compliant facility that may process other products that contain these allergens or ingredients.
- • Warnings Keep out of reach of children.
- • Consult with a licensed physician, pharmacist, naturopath or other qualified healthcare professional prior to taking dietary supplements.
- • Sealed for your protection.
- • Do not use if seal is missing or broken.
- • Store in a cool, dry place.
- • Protect from heat, light, and moisture.
- • 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 Servings Per Container: 360 Amount Per Serving %Daily Value Vitamin D (as D3, Cholecalciferol) 50 mcg (2,000.
Is Vitamin D3, 50 mcg (2,000 IU), 360 Fish Gelatin 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 D3, 50 mcg (2,000 IU), 360 Fish Gelatin Softgels worth buying in 2026? ▼
What is the best price for Vitamin D3, 50 mcg (2,000 IU), 360 Fish Gelatin Softgels in the UK? ▼
What are the pros and cons of Vitamin D3, 50 mcg (2,000 IU), 360 Fish Gelatin Softgels? ▼
Is Vitamin D3, 50 mcg (2,000 IU), 360 Fish Gelatin 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.
What Are Other Top Vitamin D?
Other top-rated vitamin d you might want to compare.
Feedback & Suggestions
Spotted an issue? Wrong price, incorrect data, or something else off? Let us know and we'll fix it.
Missing a product you'd like us to review? Tell us the product name and we'll consider adding it.