Vitamin D-3 with Proprietary Blend - 5000 IU, 60 Vegan Capsules
- Supports Therapeutic Vitamin D Replenishment*
- Promotes Strong Immune & Bone Density*
- High-Potency D3 for Vitamin D Deficiency*
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*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Quick Answer: Vitamin D3 5000 IU
Vitamin D3 5000 IU supplies cholecalciferol — the body-identical form of vitamin D — in a high-potency dose used to correct deficiency in adults. Take 1 softgel daily with your largest meal containing fat. Most adults with confirmed deficiency reach optimal 25(OH)D levels (40–60 ng/mL) within 8–12 weeks. Not for use in children without physician guidance.
What Is Vitamin D3 5000 IU?
Vitamin D3 (cholecalciferol) is the form of vitamin D that your skin synthesizes when exposed to UVB radiation and the form most efficiently used by the body. Each softgel in this formula delivers 5000 IU (125 mcg) of cholecalciferol — a high-potency dose designed to restore blood levels in adults who cannot reach adequacy through diet and sunlight alone.
Unlike vitamin D2 (ergocalciferol, derived from fungi), D3 raises 25-hydroxyvitamin D serum levels roughly 87% more effectively and sustains them significantly longer. The softgel delivery format dissolves in dietary fat, which is critical: vitamin D is fat-soluble, and absorption depends on the presence of fat in the digestive tract at the time of ingestion.
Remedy's formula uses a proprietary blend of organic ingredients alongside cholecalciferol to support the complete vitamin D3 absorption pathway. Each bottle contains 60 vegan softgels — a 60-day supply at the standard 1-per-day dose.
Who Needs High-Potency Vitamin D3?
Standard-dose supplements (400–1000 IU) are sufficient for maintenance in people who are already replete, but they are inadequate for correcting clinical deficiency. A 2011 NHANES analysis found that 41.6% of US adults have serum 25(OH)D below 20 ng/mL — the threshold for deficiency according to the Endocrine Society. [1]Vitamin D Deficiency Prevalence in US Adults — PubMed View source
Several populations face significantly higher risk:
- Limited sun exposure: Indoor workers, northern latitudes (above 37°N), winter months
- Darker skin pigmentation: Melanin reduces UVB-driven D3 synthesis by 95% — 70–76% of African Americans are deficient
- Obesity (BMI >30): Vitamin D is sequestered in adipose tissue, reducing bioavailability in circulation
- Malabsorption conditions: Crohn's disease, celiac disease, gastric bypass, short bowel syndrome
- Adults over 65: Skin synthesis efficiency declines by up to 75% with age
- Confirmed deficiency: 25(OH)D below 20 ng/mL on blood testing requires correction doses, not maintenance doses
Our 10 warning signs of vitamin D deficiency covers each risk factor in depth, including symptom recognition and when to test.
What 5000 IU Is Used For
High-potency vitamin D3 is taken for one practical reason: to raise a low 25(OH)D level faster than a maintenance dose can. The downstream effects people look for — calcium absorption and bone density, immune function, mood through the darker months — all follow from getting the blood level into range and holding it there.
What the research supports for each of those areas, and where the evidence thins out, is covered in vitamin D benefits and functions. How quickly a low level actually moves is in how long it takes to correct a deficiency.
How Vitamin D3 5000 IU Compares to Lower Doses
The RDA for vitamin D is 600 IU for adults 19–70 and 800 IU for adults over 70 — amounts intended to maintain adequacy in people who are already sufficient. For correction of clinical deficiency, these doses are insufficient. A person with serum 25(OH)D of 12 ng/mL requires correction, not maintenance.
| Dose | Typical Use | Expected 25(OH)D Change | Time to Adequacy |
|---|---|---|---|
| 400 IU/day | Infant maintenance, multivitamin baseline | +2–4 ng/mL | Inadequate for deficiency correction |
| 1000 IU/day | General adult maintenance | +6–10 ng/mL | Months — insufficient if starting <20 |
| 2000 IU/day | Maintenance for at-risk adults | +10–16 ng/mL | 16–20 weeks from deficient baseline |
| 5000 IU/day | Deficiency correction (physician-guided) | +25–35 ng/mL | 8–12 weeks from deficient baseline |
Clinical studies have used 5000 IU daily in long-term hospital settings for 7 years with a favorable safety profile when monitored by blood testing. Most physicians recommend testing 25(OH)D after 3 months of 5000 IU supplementation, then adjusting dose to maintain 40–60 ng/mL. [5]Daily Oral Dosing of Vitamin D3 5000 IU — Journal of Steroid Biochemistry PubMed View source
For guidance on interpreting your blood test results and determining the right dose for your situation, see our how to read your vitamin D blood test.
Which Strength Do You Need?
| Strength | Who it fits | Product |
|---|---|---|
| 1000 IU | Maintenance once levels are normal, or a doctor-advised low dose | Vitamin D-3 1000 IU |
| 2000 IU | The everyday adult dose for indoor work and northern winters | Vitamin D-3 2000 IU |
| 5000 IU | Correcting a documented deficiency, under testing — this product | — |
| 2000 IU drops | Anyone who cannot swallow capsules, or wants to adjust the dose by drop | Vitamin D-3 Drops |
What to Take Alongside It
Two nutrients come up constantly with high-dose vitamin D. Magnesium is required by the enzymes that convert vitamin D into its active form, so a magnesium shortfall can blunt the response to supplementation. Vitamin K2 directs calcium toward bone rather than soft tissue, which matters more as the vitamin D dose rises.
Dosage and Timing
Vitamin D3 is fat-soluble. A clinical study found that taking vitamin D with the largest meal of the day — rather than on an empty stomach — produced 50% higher serum 25(OH)D levels over 3 months. Take 1 softgel daily with your largest fat-containing meal. [6]Taking Vitamin D with Largest Meal Improves Absorption — Journal of Bone and Mineral Research PubMed View source
| Goal | Dose | Timing | Duration Before Re-Testing |
|---|---|---|---|
| Deficiency correction (25(OH)D <20 ng/mL) | 5000 IU/day | With largest meal | 8–12 weeks, then retest |
| Insufficiency correction (20–30 ng/mL) | 2000–5000 IU/day | With largest meal | 12 weeks, then retest |
| Maintenance (already 40–60 ng/mL) | 1000–2000 IU/day | With any fat-containing meal | Annual testing |
Some evidence suggests vitamin D taken late in the evening may interfere with melatonin signaling, potentially affecting sleep onset. Morning or midday dosing is preferred. Weekly high-dose dosing (e.g., 35,000 IU once weekly) is pharmacologically equivalent to daily dosing but produces larger peak-to-trough fluctuations — daily dosing is preferred for steady-state deficiency correction.
For a breakdown by age group, body weight, and deficiency severity, see our vitamin D supplements types, dosage, and safety guide.
Safety: Is 5000 IU Too Much?
The Tolerable Upper Intake Level (UL) established by the Institute of Medicine is 4000 IU/day for adults without medical supervision — a conservative threshold set to ensure safety across the general population. However, 5000 IU/day is widely used under physician guidance for deficiency correction. [7]2011 Dietary Reference Intakes for Vitamin D — Journal of Clinical Endocrinology PubMed View source
Vitamin D toxicity (hypervitaminosis D) is caused by hypercalcemia — excess calcium in the blood — not by direct toxicity of vitamin D itself. Clinically meaningful toxicity is rare at doses below 10,000 IU/day and typically requires months of sustained intake at that level. A comprehensive risk assessment published in the American Journal of Clinical Nutrition found no evidence of adverse effects at intakes up to 10,000 IU/day. [8]Risk Assessment for Vitamin D Upper Limit — American Journal of Clinical Nutrition PubMed View source
Monitoring recommendation: If you supplement at 5000 IU/day for more than 3 months, request a 25-hydroxyvitamin D blood test to confirm levels are in the target range of 40–60 ng/mL and not above 100 ng/mL. Discuss with your healthcare provider before starting if you have any history of kidney stones, hyperparathyroidism, or granulomatous diseases such as sarcoidosis.
Interactions and Contraindications
Talk to your prescriber before starting 5000 IU if you take thiazide diuretics, digoxin, corticosteroids, weight-loss medication that blocks fat absorption, or anticonvulsants, and if you have hyperparathyroidism, sarcoidosis, kidney stones or kidney disease. High-dose vitamin D raises calcium absorption, which is precisely the mechanism behind most of these cautions.
The full interaction list, dose ceilings and the signs of taking too much are in the vitamin D safety and drug interactions guide.
Why Choose Remedy's Vitamin D3 5000 IU?
Not all vitamin D3 supplements deliver what they claim. Remedy's formula is built for bioavailability, purity, and consistency — the 3 factors that determine whether a supplement actually moves your 25(OH)D levels.
| Feature | What You Get | Why It Matters |
|---|---|---|
| Cholecalciferol (D3) | 5000 IU per softgel | 87% more effective than D2 at raising 25(OH)D levels; body-identical form |
| Vegan softgel | Plant-derived softgel capsule | No gelatin; suitable for vegetarian and vegan diets |
| Proprietary absorption blend | Organic whole-food base | Provides dietary fat matrix for optimal fat-soluble vitamin absorption |
| 60 capsules per bottle | 60-day supply at 1/day | Full 2-month correction cycle in a single bottle |
| No artificial fillers or binders | Clean label formulation | No magnesium stearate, silicon dioxide, or artificial flow agents |
| Made in USA | GMP-certified domestic facility | Third-party tested for potency and heavy metals |
Hub Articles: Learn More About Vitamin D
These in-depth resources support every aspect of your vitamin D journey, from understanding deficiency to reading your lab results:
- Vitamin D: The Complete Guide to Benefits, Sources, and Deficiency — comprehensive reference covering all major research areas
- How Much Vitamin D Should You Take Daily? — evidence-based dosage guide by age, weight, and health status
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Frequently Asked Questions
Is 5000 IU of vitamin D3 too much to take daily? +
For most adults with confirmed deficiency, 5000 IU/day is a physician-used correction dose, not an extreme amount. The Institute of Medicine's Tolerable Upper Intake Level is 4000 IU/day as a conservative general-population threshold. Clinical research shows no evidence of adverse effects at up to 10,000 IU/day when used short-term. Monitor your 25(OH)D blood levels after 8–12 weeks to confirm you are in the 40–60 ng/mL target range.
How long does it take for vitamin D3 5000 IU to work? +
Most adults with confirmed deficiency (25(OH)D below 20 ng/mL) reach optimal levels of 40–60 ng/mL within 8–12 weeks of consistent daily 5000 IU supplementation. Individuals with obesity, malabsorption disorders, or severe deficiency may require 16–20 weeks. Retest your 25(OH)D at the 3-month mark to confirm and adjust your dose if needed.
Should I take vitamin D3 with food or on an empty stomach? +
Always take vitamin D3 with food, specifically with your largest fat-containing meal of the day. A clinical study found that taking vitamin D with the largest meal produced 50% higher serum 25(OH)D levels over 3 months compared to taking it on an empty stomach or with a small snack. Vitamin D is fat-soluble and requires dietary fat for absorption.
Do I need to take vitamin K2 with vitamin D3 5000 IU? +
Many practitioners recommend pairing high-dose vitamin D3 (3000–5000 IU/day) with vitamin K2 (typically 100–200 mcg MK-7). Vitamin D3 increases calcium absorption; vitamin K2 directs that calcium into bone via osteocalcin and prevents arterial calcification via matrix Gla protein (MGP). While the clinical evidence for this pairing is still emerging, the theoretical rationale is strong, and K2 supplementation at standard doses carries minimal risk.
Can I take vitamin D3 with magnesium? +
Yes — taking magnesium alongside vitamin D3 is not only safe but recommended. Magnesium is a required cofactor in at least 2 enzymatic steps of the vitamin D activation pathway. Without adequate magnesium (RDA: 310–420 mg/day for adults), supplemented vitamin D may not fully convert to its active form, calcitriol. Up to 48% of US adults consume below the magnesium RDA, making co-supplementation a practical consideration for most people.
What are the symptoms of vitamin D deficiency? +
Vitamin D deficiency symptoms include fatigue, bone pain, muscle weakness, frequent infections, low mood, and impaired wound healing. In severe cases, children develop rickets and adults develop osteomalacia (soft bones). Because symptoms are nonspecific, many people are deficient for years without knowing. The only reliable way to diagnose deficiency is a 25-hydroxyvitamin D blood test, with deficiency defined as below 20 ng/mL.
Who should not take vitamin D3 5000 IU? +
Avoid 5000 IU/day without physician supervision if you have: hyperparathyroidism, sarcoidosis or other granulomatous diseases, hypercalcemia (high blood calcium), kidney stones with a history of absorptive hypercalciuria, or chronic kidney disease (stages 3–5). Also consult your doctor if you take thiazide diuretics or anticonvulsants (phenytoin, carbamazepine), as these 2 drug classes significantly interact with vitamin D metabolism.
What is the difference between vitamin D2 and vitamin D3? +
Vitamin D2 (ergocalciferol) is derived from plant sources and fungi. Vitamin D3 (cholecalciferol) is the form produced by human skin under UVB light and found in animal-source foods. D3 is approximately 87% more effective than D2 at raising serum 25(OH)D levels and maintains those levels for at least 2–3 times longer after supplementation stops. Most clinical guidelines now recommend D3 over D2 for supplementation.
How do I know if vitamin D3 5000 IU is working? +
The most reliable indicator is a 25-hydroxyvitamin D blood test. A successful correction from deficiency baseline (below 20 ng/mL) to optimal range (40–60 ng/mL) typically takes 8–12 weeks at 5000 IU/day. Subjectively, many people report improved energy, better sleep quality, and fewer winter respiratory infections within 4–8 weeks, though these are not specific to vitamin D and should not replace blood testing.
Can vitamin D3 help with depression and mood? +
Multiple meta-analyses have found a significant association between low vitamin D levels and higher depression risk — including a 14-study analysis published in the British Journal of Psychiatry. Several RCTs have shown modest but meaningful improvements in depression symptom scores over 8–26 weeks of supplementation. Vitamin D is not a replacement for antidepressant treatment, but correcting deficiency is a reasonable adjunct in patients with confirmed low 25(OH)D and mood symptoms.
What time of day should I take vitamin D3? +
Morning or midday is preferred. Some evidence suggests that vitamin D taken in the evening may suppress melatonin production, potentially delaying sleep onset, though this effect appears to be small. The more important timing factor is food: take it with your largest fat-containing meal regardless of the time of day. Consistency is key — taking it at the same time daily improves compliance and results in more stable 25(OH)D levels.
Does vitamin D3 5000 IU need to be refrigerated? +
No refrigeration is required. Store at room temperature between 59°F and 77°F (15°C–25°C), away from direct sunlight and moisture. Vitamin D3 in softgel form has a shelf life of approximately 2 years from the manufacture date when stored properly. Heat above 86°F and direct UV light can degrade potency over time — avoid storing in a car glove compartment or on a sunny windowsill.
Can children take vitamin D3 5000 IU? +
This product is formulated for adults and is not recommended for children under 12 without physician guidance. Pediatric dosing for vitamin D is much lower: 400 IU/day for infants 0–12 months, and 600 IU/day for children 1–18 years as per standard guidelines. Children with confirmed severe deficiency may require higher physician-prescribed doses (1000–2000 IU/day or more), but 5000 IU/day exceeds typical pediatric ranges.