Zepym Health
Vitamin D3 Capsules

Taken by mouth · Once a day

Vitamin DBone healthImmunity

Vitamin D3 Capsules

Vitamin D3 (cholecalciferol): oral capsule for bone strength, immune function, and mood. Most people are deficient; supplementation lifts energy and supports calcium absorption.

  • Supports bone mineral density and calcium absorption
  • Enhances immune function and mood regulation
  • Oral capsule; daily or weekly dose options
  • Monthly$79/mo
  • Every 3 months$189 billed up front$63/mo
  • Every 6 monthsBest value$324 billed up front$54/mo
  • Free, discreet shipping
  • Licensed U.S. pharmacy
  • Board-certified physicians

Disclaimer: Prescription products require an online evaluation with a licensed medical professional who will determine if a prescription is appropriate. Products are compounded by a licensed pharmacy. The FDA has not reviewed or approved compounded products for any use for safety, efficacy, or quality. Compounded medications are not FDA-approved brand-name products.

How
Taken by mouth
How often
Once a day
Each shipment
30 capsules
Strengths
2 options · 5–10 IU

What is vitamin D3?

(cholecalciferol)

Vitamin D3 is a fat-soluble hormone your skin makes from sunlight and your body uses to absorb calcium, regulate immune function, and support neurotransmitters linked to mood. Most people living in northern climates or working indoors are deficient. Supplementation raises serum 25-hydroxyvitamin D, the storage form, which improves bone health, immune resilience, and mood.

What's in it

  • Vitamin D3Helps absorb calcium

1 in 4

Americans are vitamin D deficient

Vitamin D deficiency is common and easily corrected with daily or weekly supplementation. Your physician may check your serum 25-OH-D level to set the right dose.

Is it right for you?

  • Who it's for

    People with a low vitamin D level on a blood test.

  • What sets it apart

    High doses, 5,000 and 10,000 IU, above the daily upper limit: for correcting a deficiency.

  • Worth knowing before you start

    Recheck the level at three months; the dose then comes down.

What to expect

  • Better energy

    especially if you were deficient

  • Stronger bones

    D and K work synergistically over months

  • Reduced inflammation

    fish oil and Q10 support recovery

  • Improved endurance

    Q10 and fish oil support exercise capacity

How vitamins work

  1. Day 1

    Your physician reviews your diet, lifestyle, lab values (including vitamin D level), and goals. Discusses which vitamins fill gaps and how to time them with meals.

    1
  2. Week 1

    Start your daily vitamins with breakfast or as directed. Take fat-soluble vitamins (D, K, CoQ10, fish oil) with food to improve absorption.

    2
  3. Weeks 2-4

    Most people tolerate vitamins well. Some notice subtle energy shifts or better joint comfort. Keep a symptom log.

    3
  4. Month 2-3

    Your physician may check follow-up labs (vitamin D level, if supplementing D) to confirm optimal dosing.

    4
  5. Beyond

    Vitamins work best on a consistent daily schedule. Annual labs and check-ins ensure your regimen matches your current needs.

    5

Individual results vary. Benefits reflect what Zepym Health members commonly report to their physician at check-ins; they are not the results of a clinical trial.

How you use it

This is the starting dose the pharmacy prints on the label. Your physician sets yours and adjusts it with you.

How
Taken by mouth
Dose
1 capsule (5,000 IU)
How often
Once a day
Each shipment
30 capsules
Pharmacy label
Take 1 capsule (5,000 IU) by mouth once daily with food for 30 days.

A sample week

  1. M
  2. T
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  5. F
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  7. S

Once a day

Strengths the pharmacy carries

  • 10,000 IU
  • 5,000 IU

The science of essential vitamins

Vitamin D3 supplementation increases serum 25-hydroxyvitamin D and improves calcium absorption, bone mineral density, and fall risk in older adults.

Studies show D3 supplementation correlates with better mood and lower infection rates. The mechanism involves calcium homeostasis and immune cell activation.

Learn more

Important safety information and common side effects

Vitamins D, K, CoQ10, and fish oil are generally well tolerated at recommended doses. D3 at very high doses (over 10,000 IU daily long-term) can raise serum calcium; your physician sets your dose. K2 is safe; no upper limit is established. Q10 is safe; high doses may cause mild GI upset or insomnia. Fish oil can thin blood slightly at high doses; tell your physician if you take anticoagulants or antiplatelet drugs. Fish oil may cause burping or GI upset in some people. Stop and seek care for signs of hypercalcemia (nausea, vomiting, confusion) or unusual bleeding.

Every plan includes

  • Personalized, physician-guided plan
  • Monthly, 3-month and 6-month plans
  • Dispensed by a US-licensed compounding pharmacy
  • Unlimited protocol adjustments and messaging
  • Ongoing support and check-ins
  • Pause or cancel anytime
  • Reviewed by our in-house physicians
Get Started

How it works

  1. 1.Connect with a physician

    Answer a few questions online and a US-licensed physician reviews your health, history and goals to make sure treatment is right for you. 100% online. No in-person visit required.

  2. 2.Get your discreet shipment

    If approved, your treatment is compounded by a US-licensed, LegitScript-certified pharmacy, inspected for quality, and shipped discreetly to your door.

  3. 3.Receive continuous support

    Start with one goal, then keep building over time. Unlimited physician messaging, easy refills and dose adjustments, all from the Zepym Health app.

Vitamin D3 educational content reviewed by our physician

Scott Nass, MDDoctor of Medicine, board-certified in Family Medicine

Charles R. Drew University and David Geffen School of Medicine at UCLA. Family Medicine residency at Ventura County Medical Center.

Frequently asked questions

How do I take Vitamin D3 Capsules?

Taken by mouth, once a day. The starting prescription is 1 capsule (5,000 IU) each time. Your physician sets your own dose and it is printed on your label.

What strengths does Vitamin D3 Capsules come in?

The pharmacy carries 2: 5,000 IU, 10,000 IU. Your physician chooses which one you get.

How much arrives in each shipment?

30 capsules at the starting strength, shipped to your door from a licensed US pharmacy.

How much vitamin D do I need?

Most people need 1,000-4,000 IU daily; some need more if they are severely deficient or have malabsorption. Your physician checks your serum level (target 30-50 ng/mL) and adjusts your dose. Taking D3 with a meal containing fat improves absorption.

Can I take all these vitamins together?

Yes. D, K, CoQ10, and fish oil are safe to take together. Take them all with food to improve absorption. Separate any other medications by 2-4 hours from fish oil if you are on blood thinners.

How do I know if I am deficient?

Vitamin D deficiency is easy to test; your physician can check your serum 25-hydroxyvitamin D level. K, Q10, and omega-3 deficiencies are harder to test precisely, but dietary assessment and symptoms guide supplementation.

Are vitamins from food better than supplements?

Ideally, you get vitamins from food. But modern diets often fall short. Supplements fill gaps. A varied diet plus targeted supplements usually works best.

How long until I notice a change?

Energy shifts may appear in weeks; bone and joint benefits take months to become obvious. Be patient and consistent; improvements build gradually.

Micronutrients that support your biology.

  • CoQ10 Capsules

    Coenzyme Q10 for cellular energy production, antioxidant support, and cardiovascular health. Often recommended for those on statin therapy.

    Capsule

    from $99/mo

  • Ezetimibe Tablets

    Ezetimibe, a cholesterol-absorption inhibitor, used to lower cholesterol levels. Commercial formulation prescribed and dosed by a licensed physician.

    Tablet

    from $59/mo

  • Fish Oil Capsules

    Fish Oil supplements rich in omega-3 fatty acids for cardiovascular health, inflammation support, and overall wellness.

    Capsule

    from $69/mo

  • Vitamin D3 / K2 Capsules

    Vitamin D3 and K2 combination for bone health, cardiovascular support, and immune function. Recommended by physicians for wellness optimization.

    Capsule

    from $44/mo

Ready to start?

Answer a few questions and take your first step to living well.

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The above statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Prescription products require an online evaluation with a licensed medical professional who will determine if a prescription is appropriate. Individual results vary.

Sources

  1. 1

    Vitamin D supplementation and bone density in older adults.

    JAMA, 2022
  2. 2

    Omega-3 fatty acids and cardiovascular disease: epidemiology and effects.

    Circulation, 2019

from $54/mo

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