Vitamin D3 2,000 IU
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BUILD A
STRONGER FOUNDATION.
A straightforward 2,000 IU vitamin D3 softgel for an intentional daily wellness routine.
Health-Grail Vitamin D3 provides 50 micrograms of cholecalciferol per softgel to support normal calcium absorption, bone mineralization, muscle function, and immune-system function.

2,000 IU Is a Defined Amount—Not a Universal “Optimal Dose.”
Each softgel provides 50 micrograms, or 2,000 IU, of vitamin D3 as cholecalciferol. Individual needs vary according to age, diet, sun exposure, health history, medication use, absorption, and vitamin D status.
Vitamin D is a fat-soluble nutrient involved in calcium and phosphorus regulation, normal bone mineralization, neuromuscular function, and immune-system function. Supplementation can be useful when dietary intake, sun exposure, absorption, or vitamin D status does not meet an individual’s needs.

Bone Support.
Muscle Function.
Daily Consistency.
The active ingredient is vitamin D3 as cholecalciferol. It is delivered in an oil-based gelatin softgel containing soybean oil and corn oil.
Support Normal Function—Without Overpromising Results.
Vitamin D is essential, but taking more does not automatically create stronger bones, better mood, greater immunity, faster recovery, or improved athletic performance.
Calcium Absorption
Vitamin D supports intestinal calcium absorption and helps maintain calcium and phosphorus availability for normal bone mineralization.
Bone Mineralization
Adequate vitamin D contributes to normal bone growth and remodeling as part of a complete routine that also includes calcium, protein, and resistance exercise.
Normal Muscle Function
Vitamin D contributes to normal neuromuscular function. Supplementation should not be presented as guaranteed to increase muscle strength, power, or lean mass.
Immune-System Function
Vitamin D participates in normal immune function, but the product should not promise protection from colds, flu, viruses, or other infections.


From Cholecalciferol to Active Vitamin D.
Vitamin D3 must be processed by the body before it reaches its active hormonal form. Taking a softgel does not create an immediate stimulant or energy effect.
Vitamin D3 Intake
The softgel supplies cholecalciferol, one of the two principal forms of vitamin D used in foods and dietary supplements.
Liver Conversion
The liver converts vitamin D into 25-hydroxyvitamin D, also called 25(OH)D, which is the main blood marker used to assess vitamin D status.
Kidney Activation
The kidneys and certain other tissues convert 25(OH)D into the active form known as calcitriol.
Biological Function
Active vitamin D participates in calcium regulation, bone metabolism, neuromuscular signaling, and immune-system processes.
Daily Value, Recommended Intake, and Upper Limit Are Different.
The Daily Value is used for supplement labeling. Recommended Dietary Allowances are population-level intake recommendations. The upper limit is a safety ceiling—not a target to reach.
The amount supplied by one Health-Grail softgel.
Based on the current U.S. Daily Value of 800 IU.
The population recommendation varies by adult age.
Includes vitamin D from food, drinks, and every supplement combined.
Important: A serving below the adult upper limit is not automatically necessary or appropriate for every person. Check multivitamins, calcium products, cod-liver oil, fortified foods, and other vitamin D supplements before combining products.
A Blood Test Measures Status—Not the Front of a Bottle.
Serum 25-hydroxyvitamin D, or 25(OH)D, is the primary laboratory marker used to evaluate vitamin D status. The response to a 2,000 IU serving can differ based on the starting level, body size, absorption, health history, and duration of use.
Associated with risk of vitamin D deficiency.
Considered adequate for bone and general health for most people by the Food and Nutrition Board.
Can be associated with potential adverse effects.
Laboratory interpretation and testing frequency should be determined by a qualified healthcare professional. More is not automatically better.
Correcting Inadequacy Is Different from Enhancing Normal Function.
People with low vitamin D status may have different needs and responses than people whose levels are already adequate. Benefits observed in deficient populations should not be promised to every customer.
Essential Physiological Role
Vitamin D supports calcium absorption and normal bone mineralization, but supplementation does not guarantee greater bone density or fracture prevention for every adult.
Supplement Results Are Inconsistent
Vitamin D is involved in normal muscle function, but trials have not consistently shown improved strength, power, lean mass, or physical performance from supplementation.
Support—Not Infection Prevention
Vitamin D participates in immune-system processes, but this softgel is not proven to prevent colds, influenza, COVID-19, or other infections.
Not a Depression Treatment
Low vitamin D status has been associated with depression, but supplementation has not been shown to prevent depression or reliably improve depressive symptoms.
What Health-Grail Vitamin D3 Is—and Is Not.
- A fat-soluble essential nutrient
- Cholecalciferol in an oil-based softgel
- A source of 50 mcg per serving
- Support for normal calcium absorption
- A supplement with 100 labeled servings
- A stimulant or instant-energy product
- A treatment for depression
- A guaranteed immune shield
- A replacement for osteoporosis treatment
- A universal dose for every adult
Review Total Vitamin D Before Adding Another Source.
The Supplement Facts panel defines one serving as one softgel. Follow the directions printed on the physical bottle and individualized healthcare guidance.
Review Other Supplements
Check multivitamins, calcium products, K2 and D3 formulas, cod-liver oil, fortified nutrition products, and prescription vitamin D.
Follow the Physical Label
Do not take multiple softgels or exceed the recommended serving unless directed and monitored by a qualified healthcare professional.
Monitor Your Response
Seek professional guidance for persistent nausea, weakness, excessive thirst, frequent urination, confusion, kidney-stone symptoms, or an allergic reaction.
Meal note: Vitamin D is fat soluble, and dietary fat can enhance absorption. This product is already delivered in a softgel containing soybean and corn oils. Avoid claiming “maximum absorption” without a finished-product bioavailability study.
Know the Active Dose and Every Other Ingredient.
Each serving provides one vitamin in an oil-based gelatin softgel.
Supplement Facts Snapshot
- Serving size: 1 softgel capsule
- Servings per container: 100
- Vitamin D3: 50 mcg
- International Units: 2,000 IU
- Form: Cholecalciferol
- Daily Value: 250%
Softgel consisting of gelatin, glycerin, and water; soybean oil; and corn oil.
Allergen note: The formula contains soybean oil. Customers with a soy allergy should review the physical label and consult their healthcare professional when appropriate.
Dietary note: The softgel contains gelatin and should not be described as vegetarian, vegan, or plant-based.
Source note: The label identifies cholecalciferol but does not disclose whether the vitamin D3 originates from lanolin, lichen, fish, or another source. Avoid source-specific claims without supplier documentation.

Vitamin D Can Accumulate When Too Much Is Taken.
Vitamin D is fat soluble. Excessive supplemental intake can raise blood calcium and urinary calcium levels and may cause kidney stones, kidney injury, soft-tissue calcification, or heart-rhythm complications.
The adult upper intake level is 4,000 IU per day from all foods, drinks, supplements, and medications combined unless a qualified clinician prescribes and monitors a different amount.
Some Medicines Affect—or Are Affected by—Vitamin D.
Can reduce absorption of vitamin D from foods and supplements.
High vitamin D intakes may interact with atorvastatin, lovastatin, or simvastatin metabolism.
Medicines such as prednisone can affect calcium absorption and vitamin D metabolism.
Combined use can increase hypercalcemia risk, particularly with kidney impairment or hyperparathyroidism.
Who May Discuss Vitamin D Supplementation?
Review This Product Before Use If:
Build Around Nutrition, Movement, and Recovery.
Review every product for overlapping vitamin D, calcium, magnesium, and other nutrients before building a daily stack.
Magnesium Glycinate
Explore a measured magnesium formula supporting normal muscle, nerve, energy-production, and bone functions.
Explore Magnesium →Joint Support
Explore a separate mobility-focused formula featuring MSM, glucosamine, turmeric, Boswellia, and hyaluronic acid.
Explore Joint Support →Vitamins & Minerals
Explore additional daily-support products while accounting for every overlapping vitamin, mineral, botanical, and medication interaction.
Explore the Collection →All Health-Grail Products
Build a routine around protein, training performance, hydration, recovery, and evidence-aware daily wellness.
Explore All Products →Clear Dose. Responsible Expectations.
Health-Grail was built around discipline, transparency, education, and the athlete mindset. Foundational nutrients deserve clearly disclosed amounts, accurate dietary information, and visible safety guidance.
50 micrograms. One softgel. One hundred labeled servings.
Frequently Asked Questions
What is Health-Grail Vitamin D3?
It is an oil-based softgel supplement providing 50 micrograms, or 2,000 IU, of vitamin D3 as cholecalciferol per labeled serving.
How many softgels are in one serving?
The current Supplement Facts panel defines one serving as one softgel.
How many softgels and servings are in each bottle?
Each bottle contains 100 softgels and provides 100 labeled servings.
Is 2,000 IU the same as 50 mcg?
Yes. One microgram of vitamin D equals 40 IU, so 50 micrograms equals 2,000 IU.
Why does the label show 250% Daily Value?
The U.S. Daily Value for vitamin D is 20 micrograms, or 800 IU. A 50-microgram serving therefore provides 250% of the Daily Value.
What does vitamin D support?
Vitamin D supports calcium absorption, normal bone mineralization, neuromuscular function, and immune-system function.
Does Vitamin D3 strengthen bones?
Adequate vitamin D supports calcium absorption and normal bone mineralization. Supplementation alone does not guarantee increased bone density or prevent every fracture.
Does Vitamin D3 improve muscle strength?
Vitamin D is involved in normal muscle and neuromuscular function, but supplementation studies have produced inconsistent results for muscle strength, power, and physical performance.
Does Vitamin D3 boost the immune system?
Vitamin D participates in normal immune function. The product should not be described as preventing infection or creating stronger-than- normal immunity.
Does Vitamin D3 improve mood?
Low vitamin D levels have been associated with depression in observational research, but clinical trials have not shown that vitamin D supplements reliably prevent or treat depression.
Is Vitamin D3 a treatment for seasonal depression?
No. This dietary supplement is not intended to diagnose or treat seasonal affective disorder, major depression, or another mental-health condition.
Does Vitamin D3 increase energy?
Vitamin D is not caffeine and does not create an immediate stimulant effect. Correcting a deficiency may affect symptoms in some people, but this product should not promise instant or guaranteed energy.
Does Vitamin D3 improve athletic performance?
The finished product has not been shown to increase strength, endurance, workout recovery, speed, power, or training adaptation.
Does everyone need a Vitamin D supplement?
No. Individual needs vary according to diet, sun exposure, age, absorption, health conditions, medication use, and vitamin D status.
How can vitamin D status be measured?
A blood test measuring serum 25-hydroxyvitamin D, or 25(OH)D, is the primary laboratory method used to assess vitamin D status.
Is 2,000 IU considered high potency?
The serving provides more than the adult RDA and 250% of the Daily Value, but “high potency” does not mean that it is the correct dose for every person.
Is 2,000 IU below the adult upper limit?
One softgel is below the adult upper intake level of 4,000 IU daily. However, the upper limit includes every dietary, supplemental, and medicinal vitamin D source combined.
Can too much vitamin D be harmful?
Yes. Excessive supplemental vitamin D can cause high blood calcium, nausea, weakness, excessive thirst, frequent urination, kidney stones, kidney failure, soft-tissue calcification, and abnormal heart rhythms.
When should I take Vitamin D3?
Follow the directions printed on the physical bottle. Vitamin D is fat soluble, and taking it with food containing fat can enhance absorption, although some absorption occurs without a meal.
Is the softgel designed for maximum absorption?
The formula is delivered with soybean and corn oils, but the finished product does not provide a clinical bioavailability study proving maximum, superior, or rapid absorption.
Can I take Vitamin D3 every day?
Follow the physical product label and individualized professional guidance. Daily use should account for every other source of vitamin D.
Can I combine Vitamin D3 with a multivitamin?
Check the multivitamin’s vitamin D amount and calculate the combined daily intake before using both products.
Can I combine Vitamin D3 with calcium?
Vitamin D supports calcium absorption, but combined supplementation is not appropriate for everyone. Excessive calcium and vitamin D can increase hypercalcemia or kidney-stone concerns.
Can Vitamin D3 interact with medication?
Potential concerns include orlistat, certain statins, corticosteroids, and thiazide diuretics. Review ongoing medication with a physician or pharmacist.
Can people with kidney disease take Vitamin D3?
Kidney disease can affect vitamin D metabolism and calcium balance. Use should be directed and monitored by the treating healthcare team.
Can people with high blood calcium take Vitamin D3?
People with hypercalcemia or hyperparathyroidism should not begin vitamin D supplementation without direct medical guidance.
Can I take Vitamin D3 during pregnancy or breastfeeding?
Pregnancy and breastfeeding vitamin D needs should be reviewed with a prenatal healthcare professional, particularly when using a prenatal vitamin or another vitamin D product.
Is this product intended for children?
Children have age-specific vitamin D requirements and upper limits. Use this adult softgel for a child only when directed by a qualified pediatric healthcare professional.
Is Health-Grail Vitamin D3 vegetarian or vegan?
No. The current softgel contains gelatin and should not be described as vegetarian or vegan.
Does the product contain soy?
Yes. Soybean oil is listed in the other-ingredients panel.
Does the product contain corn oil?
Yes. Corn oil is listed as an ingredient in the current softgel formula.
Is the Vitamin D3 sourced from lanolin or lichen?
The current label identifies the vitamin as cholecalciferol but does not disclose its original raw-material source.
Is the product third-party tested?
A third-party-testing claim should be supported by current finished-product documentation covering identity, potency, purity, and relevant contaminant specifications.
Is the formula non-GMO?
Use a non-GMO claim only when current supplier or finished-product documentation verifies the vitamin source, soybean oil, corn oil, and complete formula.
Should Vitamin D3 replace sunlight or a balanced diet?
No. Vitamin D supplements should complement—not replace—balanced nutrition, appropriate outdoor activity, sun-safety practices, resistance exercise, and medical care.
BUILD A STRONGER
DAILY FOUNDATION.
Add a clearly measured vitamin D3 softgel to a routine built around complete nutrition, movement, bone health, recovery, and responsible supplementation.
50 micrograms. 2,000 IU. 100 labeled servings.
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 and is not intended to treat vitamin D deficiency, osteoporosis, depression, immune disorders, infections, or another medical condition. Consult a qualified healthcare professional before use, particularly if you have elevated calcium, kidney disease, kidney stones, hyperparathyroidism, malabsorption, are pregnant or breastfeeding, are considering use for a child, take prescription vitamin D, use a thiazide diuretic, corticosteroid, orlistat, certain statins, or take other vitamin D or calcium products. This formula contains gelatin, soybean oil, and corn oil. Follow the physical product label and keep out of reach of children.
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Vendor: Health Grail
Type: Daily Support
Sku: RLC3VTD3
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