Essential Vitamin · Monthly Subscription

Almost every GLP-1 user
is vitamin D deficient.

Vitamin D requires sun exposure and dietary fat to synthesise and absorb. Reduced food intake, reduced fat absorption, and indoor lifestyles mean deficiency is almost universal — and it affects immune function, bone density, mood, and hair cycling.

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Vitamin D3 2,000 IU

$21.24/mo · Save 15%

5,000IU

vitamin D3 per capsule — therapeutic dose

K2 (MK-7)

directs calcium to bone, not arteries

60 days

full money-back guarantee

80%

of people with hair loss are vitamin D deficient

Why GLP-1 worsens vitamin D deficiency

Less fat intake means
less vitamin D absorption.

Vitamin D is fat-soluble — it requires dietary fat for intestinal absorption. On the reduced-fat intake common with GLP-1, even the vitamin D available from sunlight and diet is poorly absorbed. Supplementation is necessary but also poorly absorbed without adequate fat.

Vitamin D deficiency independently drives hair follicle cycling abnormalities, immune suppression, and mood disorders. It's also required for calcium absorption — meaning that without D3, bone health deteriorates regardless of calcium intake.

K2 (MK-7) is included because it directs calcium absorbed via D3 into bone rather than arterial tissue — an important distinction at higher D3 doses.

Full formula

Every ingredient.
Every dose. Every reason.

Vitamin D3 (Cholecalciferol)

5,000IU (125mcg)

The most bioavailable form of vitamin D. 5,000IU is the therapeutic dose recommended for correcting deficiency — not just maintenance. Supports immune function, bone density, hair cycling, and mood regulation.

Vitamin K2 (MK-7)

100mcg

At higher D3 doses, K2 is essential to ensure calcium goes to bone and not arteries. MK-7 is the isoform with the longest half-life and highest activity.

Magnesium (as Oxide)

50mg

Required for D3 activation in the liver and kidneys. Without magnesium, supplemental D3 cannot convert to its active hormonal form.

Common questions

Everything you want to know.

Is 5,000IU safe?

Yes, for most adults. Vitamin D toxicity occurs at sustained doses above 40,000IU. At 5,000IU, you're in the therapeutic correction range that's widely prescribed for deficiency.

Why take it with K2?

At higher D3 doses, K2 prevents hypercalcemia complications by routing absorbed calcium into bone matrix rather than soft tissue and arterial walls.

Should I take it with food?

Yes — with your fattiest meal of the day. Vitamin D is fat-soluble and absorbs significantly better with dietary fat.

What if it doesn't work?

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Ready to start?

Fix the deficiency.
Your immune system, bones, and hair will notice.

Vitamin D levels typically normalise within 6–8 weeks at 5,000IU. Get a blood test at 3 months to confirm.