

🦪 Elevate your flock’s health with nature’s calcium powerhouse!
Southside Plants Oyster Shell Flour is a premium, 1 lb natural calcium supplement designed to enhance egg production and strengthen eggshells for chickens and a wide range of pets including reptiles, amphibians, mammals, birds, and invertebrates. Free from harmful chemicals and additives, this easy-to-mix powder ensures superior nutrient retention and versatile use—from feed mixing to substrate enrichment—backed by 303 positive reviews and made sustainably in the USA.
| Brand | Southside Plants |
| Customer Reviews | 4.6 out of 5 stars 303 Reviews |
| Flavor | Chicken |
| Item Form | Powder |
| Item Weight | 1 Pounds |
| Manufacturer | Southside Plants |
| UPC | 850011619414 |
P**E
Good for ducks
My ducks hate grit so this was ideal for mixing into their food. They had no problem eating it mixed in their food. The egg shells were hard and sturdy. It was a pretty good price too.
N**C
Great for chickens, even picky chickens.
My chickens won't touch crushed oyster shells. This powered and gritty type works perfectly as I mix it into their layer feed. I don't have an exact measurement that I use. I just sort of spinkle it so it covers the top layer of feed and then use the scoop to mix it in a few times. Their egg shells have become much harder and I haven't had any broken eggs in the nesting boxes since starting to use this. The broken eggs were due to my "plus size" lovely ladies stepping on the eggs.
J**L
Great product
Just used it! Best way to get calcium to my birds
K**Y
Works well
I love this product. I mix it in my chickens food which means my chickens get the calcium they need and their egg shells are stronger.
T**A
Chickens stopped eating their own eggs now.
We have been adding oyster shells for our chicken and since then our chickens stopped eating their own eggs and also the eggs themselves have became harder. The shells were very soft before that. They are defintly more affordable then other brands here but gets the job just as well. We just blend them up alittle because I do thing that it's alittle to chunky chunks for the chickens
A**R
excelente
excelente
P**T
Good value and worked!
Milled very fine. I am using this for button quail and they like the small size. Just have to make sure the opening to the oyster shell flour is small so they don't use it as a dust bath. Works great for button quail.
T**Y
Oyster shell flour
Oyster shell flour is a repeat item for my chicken flock, using it maintains hard shell eggs. Chief McCurry Retired Submariner
Trustpilot
2 days ago
1 month ago