Integrative Therapeutics Vitamin D3 2,000 IU - Vitamin D for Bone Health* - Supports a Healthy Immune System* - Gluten-Free & Dairy-Free - Chocolate Favored, 120 Chewable Tablets (120 Servings)
$0.14/serving
Price verified Apr 22, 2026
Not evaluated by the FDA · Individual results may vary · Consult a healthcare provider before use
Our verdict
2,000 IU (50 mcg) cholecalciferol per chewable tablet (120 tablets, 120 servings at 1 tablet/day) of Vitamin D3 (Cholecalciferol) 2,000 IU (50 mcg) per chewable tablet from Integrative Therapeutics. Best…
Why we recommend this
This product delivers the most consumer-friendly format in the Integrative Therapeutics D3 line — a chocolate chewable with 120 servings at $16.50 — backed by a 4.7-star rating across 316 reviews. For the majority of adults supplementing D3 for maintenance rather than repletion, the 2,000 IU dose combined with the GMP-certified clinical-brand standard is an excellent daily option.
Check for interactions
Already taking other supplements or prescription medications? Add them below to check for documented interactions, severity, and clinical guidance.
Our database currently documents 137+ supplement and drug-category interaction pairs. Combinations not flagged here may still interact — always consult your healthcare provider before combining supplements, especially with prescription medications.
What to watch out for
The 2,000 IU dose is well-positioned for maintenance in adults who already have adequate vitamin D levels, but individuals with confirmed deficiency (25-OH D below 20 ng/mL) typically need 4,000–10,000 IU daily for repletion — a target this product cannot easily reach in a single-tablet format.
Dose & form
- Serving
- 2,000 IU (50 mcg) cholecalciferol per chewable tablet (120 tablets, 120 servings at 1 tablet/day)
- Form
- Chewable Tablet
- Clinical range
- General maintenance: 1,000–2,000 IU/day; deficiency repletion: 4,000–10,000 IU/day under supervision; upper tolerable limit: 4,000 IU/day without supervision
- Dose adequacy
- Adequate for maintenance and general deficiency prevention; below the 4,000–10,000 IU range used in repletion protocols for confirmed deficiency
- Supply
- 120 servings · $0.14/serving
- UPC
- 871791004450
Who it's best for
Adults and older children who prefer a chocolate-flavored chewable vitamin D3 at a clinical 2,000 IU dose from a trusted GMP-certified brand
Who should skip it
Those needing high-dose vitamin D repletion (5,000–10,000 IU) or users seeking a softgel form for maximum fat-soluble absorption
Pros
- 120-tablet supply provides a full 4-month supply at 1 tablet/day — strong value for a clinical-brand product at $16.50
- Chocolate-flavored chewable tablet format enhances daily adherence, especially for tablet-averse users
- Completely free of sugar, gluten, dairy, soy, and artificial flavors — broad dietary compatibility
- 316 reviews at 4.7 stars — strong customer satisfaction for a clinical-brand vitamin D product
Cons
- 2,000 IU may be insufficient for individuals with confirmed vitamin D deficiency who require 4,000–10,000 IU repletion doses
- Chewable tablet limits dose stacking due to flavor and texture — higher doses require multiple tablets
- No sugar in the formula means the chocolate flavor relies on sugar substitutes, which some users may dislike
What customers say
4.7★ across 316 Amazon reviews. The most common questions from shoppers: re any potential interactions with medications, re any side effects from long-term use, and cause any digestive issues or side effects. Full answers in the FAQ below.
Frequently Asked Questions
What is the clinical dose for Vitamin D3 (Cholecalciferol) 2,000 IU (50 mcg)?
What is the clinical dose for Vitamin D3 (Cholecalciferol) 2,000 IU (50 mcg)?
Clinical trials typically use General maintenance: 1,000–2,000 IU/day; deficiency repletion: 4,000–10,000 IU/day under supervision; upper tolerable limit: 4,000 IU/day without supervision. Integrative Therapeutics Vitamin D3 2000 IU Chewable delivers 2,000 IU (50 mcg) cholecalciferol per chewable tablet (120 tablets, 120 servings at 1 tablet/day), which we classify as Adequate for maintenance and general deficiency prevention; below the 4,000–10,000 IU range used in repletion protocols for confirmed deficiency relative to that range.
How does Integrative Therapeutics Vitamin D3 2000 IU Chewable compare to similar Chewable Tablet?
How does Integrative Therapeutics Vitamin D3 2000 IU Chewable compare to similar Chewable Tablet?
See the "Also consider" section below for two alternatives. Choose based on form preference (Chewable Tablet vs alternatives), dose adequacy, and third-party testing.
Is Integrative Therapeutics Vitamin D3 2000 IU Chewable third-party tested?
Is Integrative Therapeutics Vitamin D3 2000 IU Chewable third-party tested?
Yes — GMP Certified. Third-party testing verifies ingredient identity and label accuracy.
Does this work with Amazon Subscribe & Save?
Does this work with Amazon Subscribe & Save?
Yes — Amazon Subscribe & Save is available for this product. Enrolling locks in a recurring delivery at a reduced per-unit price.
Are there any potential interactions with medications?
Are there any potential interactions with medications?
Vitamin D3 can increase calcium absorption and may amplify hypercalcemia risk when combined with calcium channel blockers or thiazide diuretics that already raise calcium levels. It may reduce the effectiveness of certain statin medications at very high doses. Individuals on digoxin, seizure medications (phenytoin, phenobarbital), or glucocorticoids should consult their prescriber, as these drugs alter vitamin D metabolism.
Are there any side effects from long-term use?
Are there any side effects from long-term use?
Vitamin D3 at 2,000 IU daily is well below the established tolerable upper intake level of 4,000 IU for adults, making long-term use at this dose safe for most individuals. Toxicity (hypercalcemia) from vitamin D requires sustained doses above 10,000 IU/day over months. Annual 25-OH D bloodwork is recommended for long-term users to ensure levels remain in the optimal 40–60 ng/mL range.
Does it cause any digestive issues or side effects?
Does it cause any digestive issues or side effects?
Chewable vitamin D3 tablets are very well tolerated with minimal GI side effects at 2,000 IU. Unlike high-dose softgels that can occasionally cause nausea or reflux when taken on an empty stomach, the chewable format with built-in flavoring is gentle and easy to digest. The sugar-free formulation avoids the GI impact that excess sugar can have in some chewable supplements.
Can it be taken with other supplements or vitamins?
Can it be taken with other supplements or vitamins?
Vitamin D3 pairs synergistically with vitamin K2 (MK-7), which directs calcium to bones rather than arteries — a well-established clinical combination. Magnesium is required for vitamin D activation in the liver and kidneys, so co-supplementation is often recommended. Vitamin D3 also enhances calcium absorption and works complementarily with omega-3 fatty acids for immune support.
Are there any specific instructions for taking it safely?
Are there any specific instructions for taking it safely?
Chew one tablet daily with a meal containing dietary fat to maximize vitamin D absorption. Do not exceed 4,000 IU total daily vitamin D from all sources without medical supervision. If you are being treated for vitamin D deficiency with high-dose supplementation, do not double-dose without your prescriber's guidance. Annual bloodwork monitoring of serum 25-OH D is recommended.
How long until benefits are typically experienced?
How long until benefits are typically experienced?
Serum vitamin D levels (25-OH D) typically increase within 4–8 weeks of consistent supplementation, with plateau levels reached at approximately 3 months. Bone health benefits are long-term and cumulative — meaningful changes in bone density take 6–24 months. Immune support effects may be experienced seasonally within the first supplement cycle.
