---
product_id: 293647277
title: "Oyster Shell for Chickens - Calcium Supplement for Chickens, 100% Natural Limestone Calcium Carbonate, Strong Eggshell & Bone Booster, 4 lbs"
brand: "mile four"
price: "46912CFA"
currency: XOF
in_stock: true
reviews_count: 8
category: "Mile Four"
url: https://www.desertcart.sn/products/293647277-oyster-shell-for-chickens-calcium-supplement-for-chickens-100-natural
store_origin: SN
region: Senegal
---

# organic, additive-free & eco-friendly boosts eggshell strength by 20%+ 100% natural calcium carbonate Oyster Shell for Chickens - Calcium Supplement for Chickens, 100% Natural Limestone Calcium Carbonate, Strong Eggshell & Bone Booster, 4 lbs

**Brand:** mile four
**Price:** 46912CFA
**Availability:** ✅ In Stock

## Summary

> 🥚 Elevate your flock’s eggshell game with nature’s strongest calcium boost!

## Quick Answers

- **What is this?** Oyster Shell for Chickens - Calcium Supplement for Chickens, 100% Natural Limestone Calcium Carbonate, Strong Eggshell & Bone Booster, 4 lbs by mile four
- **How much does it cost?** 46912CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/293647277-oyster-shell-for-chickens-calcium-supplement-for-chickens-100-natural)

## Best For

- mile four enthusiasts

## Why This Product

- Trusted mile four brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bone & Health Booster:** Supports bone strength, immune health, and cardiovascular function.
- • **Perfect Portion Control:** Chickens self-regulate intake—about 1 lb per hen per month.
- • **Pure Natural Calcium Power:** 100% natural oyster shell limestone for clean, organic calcium boost.
- • **Eco-Friendly & Additive-Free:** Sustainably sourced, no additives, safe for all breeds.
- • **Stronger Shells, Happier Hens:** Thicker, tougher eggshells that reduce breakage and waste.

## Overview

Mile Four Oyster Shell is a 4 lb bag of 100% natural, additive-free oyster shell calcium carbonate designed to strengthen eggshells and support the overall health of laying hens. Ideal for all breeds, it promotes thicker shells, stronger bones, and improved immune function, with hens self-regulating their intake for optimal results.

## Description

Shop Mile Four Organic Feed Visit the Store Shop Mile Four Organic Feed Visit the Store Shop Backyard Chickens Extras Visit the Store Shop Backyard Chickens Extras

Review: Quality calcium for your laying hens - Excellent additional source of calcium for laying hens and they love it. Will have to set up routine shipments.
Review: Great price and fast delivery - It a great dietary supplement for your chickens

## Features

- TASTE & SEE THE DIFFERENCE IN YOUR EGGS: Or our humans will make it right. Cleaner breaks, richer yolks, tougher shells from clean, natural calcium source that hens crave.
- STRONGER EGGSHELLS: Get stronger, thicker, healthier eggshells from laying (20+ weeks) chickens by boosting their calcium with oyster shell organic, all-natural calcium booster
- LAYING CHICKENS NEED CALCIUM: Eggshells are 94-97% calcium carbonate. Oyster shell is an organic, natural way to give chickens the calcium boost needed to produce strong eggshells that will not break
- HEALTHIER FOR LAYING CHICKENS: Strengthen bones (reduce bone break & damage), bolster blood vessels, boost immune systems, improve cardiovascular function & reduce egg breaking with oyster shell
- 1 CHICKEN = 1 lb. PER MONTH: Laying chickens eat oyster shell as needed (similar to grit) & will not overeat. Quantity varies by breed & weather; 1 lb. each month per laying chicken is average

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07SG6ZGFB |
| Additional Features | Environmentally Friendly, Natural Product |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Animal Food Diet Type | Raw |
| Animal Food Ingredient Claim | Additive-Free |
| Best Sellers Rank | #56,895 in Health & Household ( See Top 100 in Health & Household ) #319 in Calcium Mineral Supplements |
| Brand | Mile Four |
| Brand Name | Mile Four |
| Breed Recommendation | All Breed Sizes |
| Container Type | Bag |
| Customer Reviews | 4.5 out of 5 stars 206 Reviews |
| Flavor | Natural |
| Global Trade Identification Number | 00737488079470 |
| Item Form | Solid |
| Item Weight | 4 Pounds |
| Manufacturer | Mile Four |
| Manufacturer Part Number | oyster_shell_4 |
| Number of Items | 1 |
| Occasion | Birthday |
| Package Size Name | 4 Pound |
| Product Benefits | Strengthens eggshells and promotes chicken health |
| Recommended Uses For Product | Calcium supplement for laying chickens, Eggshell strengthener, Chicken health booster |
| Special Ingredients | Oyster Shell |
| Specific Uses For Product | Behavior, Stomach, Teeth, Weight |
| Target Species | Chicken |
| UPC | 737488079470 |
| Unit Count | 64 Ounce |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Mile Four
- **Flavor:** Natural
- **Item Form:** Solid
- **Specific Uses For Product:** Behavior, Stomach, Teeth, Weight

## Images

![Oyster Shell for Chickens - Calcium Supplement for Chickens, 100% Natural Limestone Calcium Carbonate, Strong Eggshell & Bone Booster, 4 lbs - Image 1](https://m.media-amazon.com/images/I/81ULiKfAyEL.jpg)

## Available Options

This product comes in different **Size, Flavor** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality calcium for your laying hens
*by G***C on August 10, 2025*

Excellent additional source of calcium for laying hens and they love it. Will have to set up routine shipments.

### ⭐⭐⭐⭐⭐ Great price and fast delivery
*by J***A on March 2, 2026*

It a great dietary supplement for your chickens

### ⭐⭐⭐⭐⭐ Glad to find a large bag of oyster shell alt
*by A***R on June 14, 2022*

Ordered this oyster shell alt because our girls were laying some soft shells. We'd tried another brand before, but the bag was so small that we went through it in just a couple weeks. I was happy to find the 50lb bag available through MileFour--hopefully it lasts quite awhile. It's too soon to know if it's making a difference in the shells, but the ladies seem to like it!

## Frequently Bought Together

- Mile Four Oyster Shell for Chickens - Calcium Supplement for Chickens, 100% Natural Limestone Calcium Carbonate, Strong Eggshell & Bone Booster, 4 lbs
- Mile Four Chicken Grit for Layer & Grower Chickens Age 8-20+ Weeks - 100% Natural Mineral Chicken Grit Quartzite, Poultry Grit, USA Mined, 4 lbs
- Eaton Pet and Pasture, Premium Laying Hen Nesting Pads, USA Grown & Sustainably Harvested, 13 x 13 (10 Pack)

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**Shop now:** [https://www.desertcart.sn/products/293647277-oyster-shell-for-chickens-calcium-supplement-for-chickens-100-natural](https://www.desertcart.sn/products/293647277-oyster-shell-for-chickens-calcium-supplement-for-chickens-100-natural)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-06-23*