---
product_id: 259735449
title: "Doctors Best Best D3 5000Iu, 360 CT"
brand: "doctor's best"
price: "€ 30.35"
currency: EUR
in_stock: true
reviews_count: 8
category: "Doctor's Best"
url: https://www.desertcart.it/products/259735449-doctors-best-best-d3-5000iu-360-ct
store_origin: IT
region: Italy
---

# 5000 IU potent dose Cardiovascular benefits Immune system support Doctors Best Best D3 5000Iu, 360 CT

**Brand:** doctor's best
**Price:** € 30.35
**Availability:** ✅ In Stock

## Summary

> ☀️ Elevate your health game with the sunshine vitamin powerhouse!

## Quick Answers

- **What is this?** Doctors Best Best D3 5000Iu, 360 CT by doctor's best
- **How much does it cost?** € 30.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/259735449-doctors-best-best-d3-5000iu-360-ct)

## Best For

- doctor's best enthusiasts

## Why This Product

- Trusted doctor's best brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Heart Health Hero:** Supports optimal cardiac function and healthy heart rhythm
- • **Clean & Pure Formula:** Gluten-free, soy-free, perfect for mindful adults
- • **Immune System Guardian:** Modulates immune cells for balanced, vigilant defense
- • **Bulk Supply for Consistency:** 360 softgels to keep your wellness routine uninterrupted
- • **Power-Packed 5000 IU Softgels:** Ideal daily dose to conquer widespread vitamin D deficiency

## Overview

Doctor's Best D3 5000 IU delivers a high-potency vitamin D3 supplement in easy-to-swallow softgels, scientifically designed to support bone density, immune regulation, and cardiovascular health. With 360 gluten- and soy-free capsules per bottle, it ensures a consistent daily dose for adults aiming to optimize their vitamin D levels and overall wellness.

## Description

Vitamin d from dietary intake or sun exposure requires two activation steps in the body. The first activation occurs in the liver, while the second activation occurs in the kidneys, allowing for regulation of calcium metabolism. However, vitamin d receptors are present throughout the body, in tissue such as the skin, cartilage, heart, prostate, bones and intestines. Thus, the second activation step also takes place in local tissues. Recent discoveries have highlighted the important modulatory effects of vitamin d on various cells of the immune system.vitamin d enhances and regulates immune function. It is known that various cells of the immune system, such as t lymphocytes and antigen presenting cells, express the vitamin d receptor on their surface when activated. Recently, it has been found that treatment of these immune cells with vitamin d influences their expression of cytokines, which are chemical messengers of the immune system. The immune modulating effects of vitamin d extend to monocytes and dendritic cells of the immune system as well. Dendritic cells are important antigen-processing cells of the immune system that function to initiate the immune response. Vitamin d may prevent overactivity of the immune response and keep the immune system in a normal healthy state of vigilance.vitamin d supports optimal cardiovascular function. Research has uncovered the role vitamin d plays in supporting cardiac function. Heart myocytes (cells) express the vitamin d receptor, as do smooth muscle cells of blood vessels. The benefits of vitamin d on the heart are potentially far-reaching. Studies on mice heart cells have shown that vitamin d administration impacts their growth and proliferation. In these cells, vitamin d inhibited the release of a protein that could be detrimental to the function of these cells, displaying cardioprotective properties. It has also been shown that vitamin d has a modulatory effect on heart rhythm.

Review: Very good - Ideal dose of 5000 international units. Very small soft gels.
Review: Doctor's Best Vitamin D3 5000IU - Best Vitamin D3

## Features

- VITAMIN D â€œSUNSHINE VITAMINâ€ - supports healthy bone density and structure; Vitamin D is required for optimal calcium absorption
- BENEFITS OF VITAMIN D3 - enhances and regulates immune function, supports optimal cardiovascular function and enhances cellular function
- GET YOUR NEEDED DAILY DOSE - Approximately 75% of Americans are deficient in vitamin D. Some researchers suggest that a minimum daily intake of 1,000 IU is necessary to maintain barely adequate blood levels of vitamin D. Others agree that much higher doses are needed to ensure levels are optimal enough to promote health.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0050MYHBQ |
| ASIN  | B0050MYHBQ |
| Additives | Gluten Free |
| Age Range Description | Adult |
| Allergen Information | Gluten Free, Soy Free |
| Best Sellers Rank | #8,048 in Health ( See Top 100 in Health ) #79 in Vitamin D Supplements |
| Brand | Doctor's Best |
| Customer Reviews | 4.8 4.8 out of 5 stars (17,741) |
| Customer reviews | 4.8 4.8 out of 5 stars (17,741) |
| Date First Available | 8 August 2012 |
| Format | Softgel |
| Is Discontinued By Manufacturer  | No |
| Item model number  | DRB-00250 |
| Manufacturer  | DOCTORS BEST |
| Product Dimensions  | 5.56 x 5.56 x 10.8 cm; 108.86 g |
| Serving Recommendation | serving size: 1 softgel |
| Units | 360 Count |
| Weight | 10 Grams |

## Product Details

- **Brand:** Doctor's Best
- **Diet type:** Gluten Free
- **Flavour:** Unflavored
- **Item form:** Softgel
- **Primary supplement type:** Vitamin D3

## Images

![Doctors Best Best D3 5000Iu, 360 CT - Image 1](https://m.media-amazon.com/images/I/61DadRYjVRL.jpg)

## Questions & Answers

**Q: Where is this made?**
A: From the Doctor's Best Website on the FAQs Tab: http://www.drbvitamins.com/products/vitamin-d3-1000iu/drb-00209#sthash.dmaNlz34.dpbs"Doctor's Best products are quality tested and manufactured in the United States using highly qualified cGMP manufacturers and raw material ingredients. DoctorÃÂ¢ÃÂÃÂs Best sources raw materials from around the world and ingredients are subject to the intense testing and verification regardless of geography of origin. - See more at: http://www.drbvitamins.com/products/vitamin-d3-1000iu/drb-00209#sthash.dmaNlz34.dpuf"

**Q: What is the source of your Vit. D?  Is it synthetic, made from sheep wool, plant-derived, etc.?**
A: According to the label, this product is derived from lanolin, a component of sheep's wool.  It also has extra virgin olive oil, softgel capsule made of gelatin, glycerin, purified water.

**Q: Is the bad odor normal for this brand? i have never experienced any odor whatsoever with other d3 brands. it smells rotten. please help with thoughts?**
A: Maybe smelling bad is a sign of toxic getting out of your system.  Check with doctor.

**Q: i want to ask if you can ship the product to saudi arabia?**
A: Yes.  But you need to contact TOP CAT first to get cost for international shipping.  TOP CAT

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very good
*by A***Y on 8 December 2022*

Ideal dose of 5000 international units. Very small soft gels.

### ⭐⭐⭐⭐⭐ Doctor's Best Vitamin D3 5000IU
*by A***R on 17 June 2022*

Best Vitamin D3

### ⭐⭐⭐⭐⭐ Review
*by S***A on 14 March 2025*

شكراً

## Frequently Bought Together

- Doctor's Best Vitamin D3 5,000 IU for Healthy Bones, Teeth, Heart and Immune Support, Non-GMO, Gluten-Free, Soy Free, 360 Count (Pack of 1)
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- Doctor's Best Natural Vitamin K2 Mk-7 with MenaQ7, 100mcg Vitamin K2 Supplement Supports Bone Health, Non-GMO, 60 Veggie Capsules

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-26*