Bovine liver is the most-requested organ powder we ship. It turns up in single-organ capsules, multi-organ blends, pet-nutrition formulas and whole-food nutrient products.
This guide is for the person specifying it: the formulator, R&D lead or buyer deciding which liver powder to put on a spec sheet and who to buy it from. It covers what the material contains, the choices you make when you order it, and the questions worth asking any supplier.
What does bovine liver powder contain?
Liver naturally contains vitamin A, vitamin B12, folate, choline, heme iron, copper and zinc. That broad profile in a single ingredient is why formulators specify it.
Those are composition facts about the raw material. What a finished product may say about them is a separate question, and claims on a finished product are the brand owner’s to make and substantiate.
Why vitamin A matters to the formulator
Liver’s vitamin A content is a large part of why it is chosen, and the reason serving size needs thought. It is also the question your own customers are most likely to raise.
That makes it a formulation and labeling decision rather than a raw-material defect. Our quality team will work through the nutritional side with you. The analysis itself depends on your finished formulation, so it is something we assist with rather than supply.
Heme iron and the whole-food profile
The iron in liver is heme iron, the form found in animal tissue. It arrives alongside the copper, vitamin A and B vitamins that liver naturally carries, which is why formulators use liver as a whole-food ingredient rather than rebuilding the same list from isolated nutrients.
Freeze-dried or desiccated: which tier fits the formula?
Freeze-dried is the premium tier. Desiccated is the value tier. The choice is usually about budget and positioning, and both are legitimate.
Freeze-drying removes water by sublimation after the material is frozen. It is the gentlest commercial drying method available, which is why freeze-dried is the premium tier.
Desiccated material is sourced rather than made in house, and the difference per kilo is large enough to matter if you are buying on price. Technically all powder is dried, so as a category “desiccated” simply means not freeze-dried. Price for either comes back with the quote.
Drying is not the kill step
Every organ powder needs a pathogen control step. Our flagship US liver is heat treated in commercial ovens at a minimum of 145°F for seven minutes by our sister company Flatiron Food Factory, and only then freeze-dried and milled.
The industry’s usual kill step is high-pressure pasteurization, typically paired with a chemical bath or irradiation. Our flagship material goes through none of the three. How our material is processed walks through each step.
Should liver powder be defatted or non-defatted?
Non-defatted is the default, and it suits most liver formulas. Defatting strips the fat-soluble vitamins, and vitamin A is one of them.
Defatted liver is available on request for formulas that call for it. If yours does, put the defatted spec on the quote request. Our post on non-defatted vs. defatted organ powders goes further into the trade-off.
Mesh and density: why milling matters
Uneven particle size is what makes a powder fill capsules inconsistently from lot to lot. The fix is a supplier that mills in house and can hold a spec across lots.
Flatiron runs both a hammer mill and a cryogenic mill, with a milling scientist on staff deciding which a given material needs. Density and mesh are set to your formulation and held batch to batch, rather than drifting when dried material is sent out to a separate miller.
There is no single right mesh for liver. Tell us the density and mesh your line runs at and we will confirm whether it is achievable before you order.
Sourcing: origin and tier are two separate questions
Our flagship tier is US grass-fed, human-grade raw material under USDA inspection. We also distribute liver from New Zealand, Australia, South America and China, all of it stocked in the United States.
Material comes in four tiers: grass-fed, grass-finished, organic and conventional. A tier is not an origin, so a lot should always be described by both. The New Zealand, Australian and South American material is HPP-processed to those regions’ standards. Our quality and sourcing standards set out each origin in more detail.
What should a buyer ask a liver powder supplier?
Ask questions whose answers you can check on paper. A good supplier answers all of these on the first call.
- Origin and tier. Which country, and which of grass-fed, grass-finished, organic or conventional, for this specific lot.
- Raw material grade. Human-grade under USDA inspection, or FDA pet-downgraded material.
- Kill step. Heat treatment, or high-pressure pasteurization with a chemical bath or irradiation.
- Form. Freeze-dried or desiccated.
- Fat. Non-defatted or defatted.
- Mesh and density. Whether the supplier mills in house and can hold your spec across lots.
- Fillers. Ours are single-ingredient powders with no fillers, flow agents or additives.
- Lead time. Our material held in stock ships in 7 to 10 business days. A custom run is 6 to 8 weeks.
What documentation ships with every order?
A certificate of analysis, lab results and a specification sheet ship with every order, not on request. The certificate covers microbial testing, heavy metals and water activity.
Past those three, every buyer’s file asks for something different. Tell us what yours needs and our quality team provides it.
Request a quote for bovine liver powder
Send us the tier, form, fat spec and the mesh or density you formulate to. We come back with pricing, current origin availability and lead time within 12 to 24 hours, with orders from 10 kg per ingredient.
Request a quote for bovine liver powder, or view all products.