Pack size: 120 capsules

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Doctor Life

D3 2000, 120 capsules

Cholecalciferol from lanolin, 2,000 IU

40,99 zł

Supports normal immune system function
Helps maintain healthy bones and teeth
Supports normal muscle function

Overview

Simple daily support for immune function, healthy bones, and normal muscle function. D3 2000 is formulated for healthy adults up to age 75. Each capsule provides 50 µg, or 2000 IU, of vitamin D3.

At the heart of the formula / D3 2000, 120 capsules

Thoughtful support. Clear purpose.

01Supports normal immune system function
02Helps maintain healthy bones and teeth
03Supports normal muscle function
04Helps with normal calcium and phosphorus absorption
05Supports normal blood calcium levels

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D3 2000

Made for your daily routine.

We chose lanolin-derived cholecalciferol, the D3 form also produced by the body. Olive oil and soybean oil provide a fat-based carrier for this fat-soluble vitamin.

Take 1 capsule with breakfast for a consistent daily routine. Each bottle contains 120 capsules, providing 120 days of use.

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D3 2000

Why does vitamin D3 matter?

Vitamin D3 helps maintain healthy bones and teeth and supports normal muscle and immune function. It contributes to calcium and phosphorus absorption and use, and to cell division. Skin production depends on factors including season and sun exposure. This formula provides a clearly stated daily D3 serving.

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D3 2000

What does research say about D3 2000?

Vitamin D has established roles in calcium and phosphorus metabolism, bones, muscles, and immune function. Large trials have also examined 2,000 IU daily, the amount in one capsule. Results vary with the population, baseline status, and outcome measured. The formula provides cholecalciferol in an oil base for regular use, without promising benefits beyond established nutrient functions.

Ingredients / Doctor Life

Every ingredient. Clearly explained.

Each ingredient, its form and quantity — in one place.

Ingredient amounts for the servings shown in the table.
Ingredient	—
Vitamin D3	50 mcg (2,000 IU) (1,000%*)

*NRV: Nutrient Reference Value

Full ingredient list

Olive oil, soybean oil, gelatin, humectant: glycerol, water, vitamin D3 (cholecalciferol).

How to use

Part of your daily rhythm.

How to use

Take 1 capsule with food at breakfast.

Important information

Do not exceed the recommended daily serving. Food supplements should not replace a varied diet. A balanced diet and a healthy lifestyle are recommended. Store at room temperature, out of reach of young children. Intended for healthy adults up to 75 years of age.

Science & sources

Understand the formula.

These publications examine vitamin D's importance for immune, bone, and muscle health and the rationale for a daily intake of 2,000 IU in adults.

These publications concern the studied ingredients or formulas. They do not all evaluate the finished Doctor Life product, and research results do not guarantee individual outcomes.

01Vitamin D Supplementation: A Review of the Evidence Arguing for a Daily Dose of 2000 International Units (50 µg) of Vitamin D for Adults in the General Population

P. Płudowski, W.B. Grant, S.N. Karras, A. Zittermann, S. Pilz

Nutrients (2024), 16(3), 391. DOI: 10.3390/nu16030391; PMID: 38337676.

This review examines evidence for a daily vitamin D intake of 2,000 IU (50 µg) in adults. That is the amount provided by one D3 2000 capsule, making the publication a relevant reference for the product's daily use.

Read publication ↗

02Guidelines for Preventing and Treating Vitamin D Deficiency: A 2023 Update in Poland

P. Płudowski, B. Kos-Kudła, M. Walczak et al.

Nutrients (2023), 15(3), 695. DOI: 10.3390/nu15030695; PMID: 36771403.

Polish guidelines set out vitamin D supplementation for different age groups, with amounts selected according to age, body weight, and sun exposure. They explain the role of regular vitamin D supplementation in nutritional prevention in Poland.

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03Vitamin D and marine omega 3 fatty acid supplementation and incident autoimmune disease: VITAL randomized controlled trial

J. Hahn, N.R. Cook, E.K. Alexander et al.

BMJ (2022), 376, e066452. DOI: 10.1136/bmj-2021-066452; PMID: 35082139.

The large randomized VITAL study involved more than 25,000 people and included a daily vitamin D intake of 2,000 IU. Its findings drew attention to regular supplementation and immune function, providing research at the amount used in D3 2000.

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04Vitamin D supplementation to prevent acute respiratory tract infections: systematic review and meta-analysis of individual participant data

A.R. Martineau, D.A. Jolliffe, R.L. Hooper et al.

BMJ (2017), 356, i6583. DOI: 10.1136/bmj.i6583; PMID: 28202713.

A meta-analysis of 25 studies involving more than 10,000 people examined vitamin D supplementation and respiratory tract infections. The most notable findings involved regular dosing and people with low baseline vitamin D levels, highlighting the importance of consistency.

Read publication ↗

FAQ / D3 2000, 120 capsules

Good questions. Clear answers.

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What does 2,000 IU mean?

2,000 IU equals 50 µg of vitamin D3. These are two units for the same amount. One capsule provides the product’s recommended daily serving; do not increase it yourself.

Why take it with food?

Vitamin D3 is fat-soluble. The formula contains olive and soybean oils and should be taken with breakfast, as directed. A consistent meal makes regular use easier.

What does lanolin-derived vitamin D3 mean?

Lanolin comes from sheep’s wool and is used to produce cholecalciferol, or vitamin D3. This is the same vitamin D form the body produces in response to sunlight.

Is it suitable for vegans or vegetarians?

No. The D3 is derived from lanolin and the capsule contains gelatin, so the product is not classified as vegan or vegetarian.

Who is D3 2000 intended for?

The product is intended for healthy adults up to age 75 who want to supplement vitamin D3. Adults over 75 should discuss an individual supplement plan with their doctor or pharmacist.

How long does one bottle last?

Each bottle contains 120 capsules. At 1 capsule daily, it provides 120 days of use—approximately four months.

Can I combine D3 2000 with other vitamin D products?

Add up vitamin D from all sources before combining products so you do not exceed the advised amount. If you take medication, have abnormal calcium-related results, or receive ongoing care, consult your doctor or pharmacist.

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