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Vitamin D-3
AMERICAN PREMIUMPublished product report
Certificate
of Analysis
Vitamin D-3
- Report
- Lot #78918
- Published
- 07 2025
Read the full report for testing methods and scope.
Made in the USAEvery batch tested in the USAPremium daily routine
Build strong bones.
Power your defenses.
Rated 4.8 out of 5 from 1,000+ reviews (Across American Premium). Read customer reviews
Premium Vitamin D-3
Put the sunshine vitamin to work.
Vitamin D3 helps your body absorb calcium for strong bones and teeth. It also supports the muscles that keep you moving and the immune cells that defend you. Get 1,500 IU in each tablet and maintain your intake when food and sunlight fall short.
Formula & serving details
1,500 IU · 100 tablets. Read the supplement label for the full formula, serving size and directions.
See the complete formulaBuild strong bones. Power your defenses.
-
Build strong bones
Support your body from the inside.
Vitamin D helps maintain bone mineralization. Give your bones a nutrient they need throughout life.
Research: Build strong bones (opens in a new tab) -
Put calcium to work
Absorb the mineral your bones need.
Your body needs vitamin D to absorb calcium from food. D3 helps support that essential process.
Research: Put calcium to work (opens in a new tab) -
Keep your muscles working
Support everyday movement.
Vitamin D contributes to muscle function. Maintain your intake to support the muscles you rely on each day.
Research: Keep your muscles working (opens in a new tab) -
Back your immune defenses
Feed your natural protection.
Immune cells use vitamin D. It supports their function as part of your everyday nutrition.
Research: Back your immune defenses (opens in a new tab)
Study links describe research on ingredients. They do not establish results for this finished formula.
See all benefits and studies
- Strengthens bones and skeletal structure*Clinical study for: Strengthens bones and skeletal structure (opens in a new tab)
- Improves calcium absorption from food*Clinical study for: Improves calcium absorption from food (opens in a new tab)
- Supports healthy immune function*Clinical study for: Supports healthy immune function (opens in a new tab)
- Maintains bone density with age*Clinical study for: Maintains bone density with age (opens in a new tab)
- Restores healthy vitamin D levels*Clinical study for: Restores healthy vitamin D levels (opens in a new tab)
- Supports normal muscle function*Clinical study for: Supports normal muscle function (opens in a new tab)
- Replaces vitamin D lost to indoor living*Clinical study for: Replaces vitamin D lost to indoor living (opens in a new tab)
Know what you are taking.
1,500 IU of D3. Daily support for bones and immunity.
Cholecalciferol supplies vitamin D3 in a convenient tablet. Support calcium absorption, muscle function, and your immune system.
Read the full label for the serving size, amount, and other ingredients.
These are highlights, not the complete ingredient list. Read the supplement label for every ingredient and amount.
Read the full label.
The supplement facts panel lists every ingredient, the serving size and the directions for this formula.
Format: 1,500 IU · 100 tablets.
Read the label before use. Ask your healthcare professional if you take medication, have a medical condition, or are pregnant or breastfeeding.
Read the bottle label before use.
Made in the USA.
Tested in the USA.
The published Certificate of Analysis identifies the tested lot and reports its results.
Read the full document for the testing scope and methods.
Open the lab reportCustomer reviews
Vitamin D-3 reviews
Rated 4.8 out of 5 from 1,000+ reviews (Across American Premium).
“4/5 would still buy again. Quality is good. Shipping was average.”
Natalie G.August 2026
“Premium quality without the premium price”
TonyAugust 2026
“Communication was clear and friendly. Quality is excellent. I feel more steady.”
BrittanyAugust 2026
“Product quality is excellent and they communicated well on my order!!”
Tina WhiteAugust 2026
“Quality first and it shows and shipping is always quick.”
Tim RobinsonJuly 2026
“Worth the money. Quality is solid. I notice a difference.”
DanJuly 2026
“Solid quality. Customer service was nice.”
Joyce R.July 2026
“the quality is there. Im doing better and support reply took a day.”
Julie J.July 2026
“Quality is excellent! On auto ship now.”
AngelaJuly 2026
“Well packaged and fast ship. Emailed support and they were friendly and fast. The product is really good!!”
D. HowardJuly 2026
“They got back to me fast. Same quality every time and i feel better every week i stay on them.”
Sara A.July 2026
No reviews for this topic yet.
What is the difference between D-3 and D-2?
D-3, cholecalciferol, is the form your skin makes from sunlight. D-2, ergocalciferol, comes from plant and fungal sources. Both raise vitamin D levels, but D-3 raises them further and holds them longer, which is why we use it.
Should I take it with food?
Yes. Vitamin D is fat soluble, so it absorbs considerably better when it arrives with a meal that contains some fat. Breakfast or dinner both work. An empty stomach wastes part of the dose.
Can I take it alongside a multivitamin?
Usually, but add up your total. Many multivitamins already contain vitamin D, and the amounts stack. If you take both, check the panels, and speak with your doctor if your combined daily intake climbs well past a maintenance level.
Do I still need it in summer?
That depends on how much midday sun reaches bare skin, and on your latitude, your skin tone, your age and your sunscreen. Many people hold a healthy level through summer and drop through winter. A blood test is the only way to know rather than guess.
How do the subscriptions work?
Choose one adult for one bottle each month, or two adults for two bottles each month. Both subscriptions bill and renew monthly until you cancel. The purchase options show the full recurring charge. One-time purchases do not renew.
Can I cancel my subscription?
Yes. Cancel in your account subscription portal or contact support. There is no minimum commitment or cancellation fee. See the subscription policy.
What are the shipping and return terms?
Standard US shipping is free with a subscription. Shipping for one-time purchases is calculated at checkout. Delivery usually takes 3–7 business days after dispatch. You can request a return within 30 days of delivery for unopened bottles with an intact safety seal. Read the full return policy.
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