Is Nature Made vitamin D3 USP Verified?
Our picks, by labeled strength, with a link to buy them: see where to buy. A strength with nothing certified at it has no pick, and is not listed there.
Yes, for every Nature Made product we track in this category. USP's directory names a product and a strength, not a package, and USP says the mark on the label is how a buyer knows. So a package counts as USP Verified here only when both hold: the product is in USP's directory, which we read in full, and this package's own label prints the USP Verified Mark. Every row below was read against that directory, and the row it matches is quoted.
| Product | Package | USP Verified at this package? | Directory row |
|---|---|---|---|
| Vitamin D3 1000 IU (100 softgels) buy | 100 softgels | Yes | Nature Made Vitamin D3 1000 IU (25 Mcg) Softgels |
| Vitamin D3 1000 IU (180 softgels) buy | 180 softgels | Yes | Nature Made Vitamin D3 1000 IU (25 Mcg) Softgels |
| Vitamin D3 1000 IU (300 softgels) buy | 300 softgels | Yes | Nature Made Vitamin D3 1000 IU (25 Mcg) Softgels |
| Vitamin D3 2000 IU (90 softgels) buy | 90 softgels | Yes | Nature Made Vitamin D3 2000 IU (50 Mcg) Softgels |
| Vitamin D3 2000 IU (250 softgels) buy | 250 softgels | Yes | Nature Made Vitamin D3 2000 IU (50 Mcg) Softgels |
| Vitamin D3 Extra Strength 5000 IU (90 softgels) buy | 90 softgels | Yes | Nature Made Vitamin D3 Extra Strength 5000 IU (125 Mcg) Softgels |
| Vitamin D3 Extra Strength 5000 IU (180 softgels) buy | 180 softgels | Yes | Nature Made Vitamin D3 Extra Strength 5000 IU (125 Mcg) Softgels |
What the directory says
USP's Verified Products directory carries 3 rows matching products in this table, each quoted above beside the package it was read against. USP publishes no page for a single product and no listing ID, so the row itself is the record, and each product page names the day the directory was read.
What each product page shows
Every Nature Made product we track, across all categories: Is Nature Made third party tested?
Where to buy: the picks, by labeled strength
The pick is the cheapest certified product, at the exact package sold where the certifier names packages, with no adverse finding on record, a price its retailer let us read recently, and no more than a year’s supply at the label’s serving; per delivered dose where the retailer publishes a delivery rate. Where none does, it is the cheapest such product before delivery, and it says how far the order is from free delivery. It is the same pick the category page shows.
How these lines are chosen
Among 10 products and 10 retailer listings we track; Amazon and Walmart are not included. A month is thirty doses of the size in the heading, priced the same way as the per-dose figure beside it. “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below.
How these lines are chosen
Among 6 products and 6 retailer listings we track; Amazon and Walmart are not included. A month is thirty doses of the size in the heading, priced the same way as the per-dose figure beside it. “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below.
How these lines are chosen
Among 11 products and 11 retailer listings we track; Amazon and Walmart are not included. A month is thirty doses of the size in the heading, priced the same way as the per-dose figure beside it. “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below.
How these lines are chosen
Among 2 products and 2 retailer listings we track; Amazon and Walmart are not included. A month is thirty doses of the size in the heading, priced the same way as the per-dose figure beside it. “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below. No product here publishes a delivery rate below its free-delivery threshold, so the pick is priced before delivery.
Full comparison of every product in this category: Vitamin D3. Every question we answer: the question index.
What this rests on: prices we last recorded at the retailer named on each product page, which go stale, and each page says when it was checked; the products we track, not every product sold, and Amazon and Walmart are not among the stores; listings and labels read at the source, each linked from the page. Found an error? Tell us. The full method: How we compare.