APEX PWR  |  Supplement Spotlight

Thorne Vitamin D + K2: The Discount, What Is New, and Whether You Actually Need It

First, the Discount, Because That Is Why Most People Are Here

If you landed on this page searching for a Thorne promo code, here is the whole answer in one paragraph so you can stop looking.

A few things worth being clear about, because people ask all of them:

• You do not need to be an APEX member or client. Anyone can use it.
• You do not need to live in Oregon. It ships to you wherever you are.
• There is no minimum order and no expiry date on the discount.
• It applies across the entire Thorne catalog, not to a selected list of products.
• Setting it up takes about a minute and you only do it once.

Why we run it: Thorne is what we would point people toward anyway, a quarter off removes the main objection to third party tested supplements, which is the price, and our nutrition team would rather field questions about a product we trust than about whatever showed up in an ad.

What the New Product Actually Is

Thorne has sold vitamin D and vitamin K products separately for years. The new product combines them into a single capsule.

The amounts of D3 and K2 per capsule are printed on the label and on the product page, and you can read them there. We have a standing rule about not publishing dosage figures as though they were a recommendation, and we are keeping to it here. The amount that makes sense for you is a conversation with your physician, and it depends on things an article cannot know about you.

Why pair D with K2 at all

The reasoning Thorne gives, which is the standard reasoning behind every D plus K product on the market, runs roughly like this. Vitamin D increases how much calcium you absorb from food. Vitamin K2 is involved in activating proteins that influence where that calcium ends up, with the intent being bone rather than soft tissue.

That is a mechanism, and mechanisms are not outcomes. The proposal is biologically coherent and the clinical trial evidence that pairing them produces better results in healthy people than vitamin D alone is thinner than most marketing around this category implies. We mention this because you deserve the accurate version, and because nobody else selling it will tell you.

Why NSF Certified for Sport is the part we care about

Dietary supplements in the United States are not reviewed by the FDA for content or purity before they reach a shelf. Independent testing has repeatedly found products that contain less of the active ingredient than the label claims, more than it claims, or substances that are not on the label at all.

NSF Certified for Sport means the finished product was independently tested against a list of substances banned in sport and the facility was audited. For a tested athlete this is the difference between a supplement and a liability. For everyone else, it is the best available proxy for whether what is written on the bottle is what is inside it.

The Part Where We Argue Against Our Own Product

November in Oregon, the clocks have gone back, and the vitamin D conversation starts every year at about this time. Here is the version with the inconvenient research left in.

The case for paying attention here

Tigard sits at roughly 45 degrees north. At that latitude the sun's winter angle means substantially less ultraviolet B light reaches the ground, and the skin's capacity to produce vitamin D falls with it. Add Pacific Northwest cloud cover and the short run of days from November to February and most people here are producing very little vitamin D from sunlight for a long stretch of the year. That is a reasonable explanation for why this question comes up locally and why it comes up now.

The case against assuming you need a supplement

The Endocrine Society published a clinical practice guideline on vitamin D in 2024. Two of its conclusions are worth knowing before you buy anything.

That third one deserves a sentence of its own. VITAL is one of the largest randomized trials ever run on vitamin D supplementation. Participants took 2,000 IU of vitamin D3 daily or a placebo, which is the trial's dose rather than our suggestion to anyone, and over more than five years there was no difference in fracture rates between the groups.

If your mental model was that vitamin D supplementation protects bones, that trial is the strongest evidence available and it did not find that.

Who the guideline does flag

The 2024 guideline identifies groups where intake above standard reference levels may offer benefit:

• Adults aged 75 and older, where higher intake may be associated with lower mortality risk.
• Pregnant women, where higher intake may reduce several adverse pregnancy outcomes.
• Adults with prediabetes, where it may slow progression to type 2 diabetes.
• Children and adolescents, for rickets prevention and a possible reduction in respiratory infections.

The guideline panel also noted that the underlying evidence base is limited, that many trials were not designed for the outcomes later reported from them, and that they could not define a blood level that represents adequacy. Which is a candid thing for a guideline panel to say and worth respecting.

Safety, Briefly and Seriously

Two further notes. Vitamin D is fat soluble, which means it accumulates in the body rather than being flushed like the water soluble vitamins, so more is not automatically better and high intakes over long periods carry real risks. And if you are pregnant, Thorne advises consulting a health care provider before use.

If You Want the Question Answered Properly

Supplements are the last five percent of a nutrition plan and they get about ninety percent of the attention. If you are thinking hard about which vitamin D to buy while your protein intake is a guess, the bottle is the wrong problem to be solving.

Our nutrition coach, Jennie Carolan, MS, holds a master's degree in Food Science and Nutrition and works with clients one to one, remotely as well as in person. The conversation she has about supplements usually starts by establishing what the food is doing first, which is a less exciting answer and a considerably more useful one.

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