Desiccated organ capsules exist because most people will not cook liver. They deliver the same nutrients — preformed retinol, copper, B12, choline, heme iron — in dried form, at a much smaller dose than the food.
That dose gap is the part buyers most often miss, and it cuts both ways. A typical daily serving is closer to a garnish of liver than a meal of it. It also means capsules are far less likely to push you over the vitamin A ceiling than the food is.
The Verdict
The six brands — listed alphabetically
Ordered alphabetically by brand name. No ranking is implied, and the positioning column describes what each company emphasizes rather than a quality judgment. Prices in this category run roughly $25–$65 per bottle, and per-capsule cost varies more with the suggested serving size than with the sticker price.
| Brand | Positioning | Suited to |
|---|---|---|
| Ancestral Supplements | Grass-fed, New Zealand-sourced; the broadest single-organ catalog (liver, heart, kidney, spleen, thymus) | Single-organ granularity |
| Codeage | Multi-organ blends, often combined with other ingredients; wide retail and online availability | Buyers who want organ blends alongside other supplements |
| Force Factor | Mass-market freeze-dried beef liver; the most widely stocked in physical retail | Lowest price and easiest availability |
| Heart & Soil | Grass-fed New Zealand sourcing; curated multi-organ formulas built around specific goals | Buyers who prefer a pre-built blend |
| Paleovalley | Grass-fed organ complex; publishes sourcing detail | Buyers who want a single multi-organ product |
| Perfect Supplements | Grass-fed desiccated liver in capsule and powder formats; third-party heavy metal testing disclosed | Powder format and disclosed testing |
Differences between these brands are smaller than the sourcing stories imply. Nearly all use grass-fed New Zealand or Australian beef, because those supply chains are set up for it. The variables that genuinely differ are the organs included, the dried milligrams per capsule, the suggested serving, and whether nutrient content and contaminant testing are disclosed.
The dose math nobody prints on the bottle
Fresh liver is roughly 70–75% water. Removing it concentrates the nutrients about four-fold by weight, which sets a straightforward conversion between capsules and food.
| Form | Amount | Approximate nutrient delivery | Notes |
|---|---|---|---|
| Fresh beef liver | 100 g | ~4,970 mcg RAE vitamin A, ~9.8 mg copper, ~59 mcg B12 | The reference serving |
| Freeze-dried liver powder | ~25–30 g | Equivalent to the above — liver is roughly 70–75% water | Almost nobody takes this much |
| Typical capsule | 500 mg dried liver | Roughly equivalent to 2 g of fresh liver | About 1/50th of a full serving |
| Typical daily serving | 6 capsules = 3 g dried | Roughly equivalent to 12 g of fresh liver | About 1/8th of a 100 g serving |
| To match one 100 g liver serving | ~50 capsules | Not a realistic protocol | Capsules supplement a gap; they do not replicate the food |
Read the bottom row carefully before deciding what these products are for. They are a way to add copper, B12, choline, and retinol that most diets under-supply. They are not a way to replicate the nutrient load of eating liver, and any marketing that implies otherwise is describing a serving size nobody takes.
What to check on the label
- Milligrams of dried organ per capsule. Usually 500 mg. This is the number that lets you do the conversion above.
- Vitamin A per serving, in mcg RAE. Frequently absent. When it is present, add it to your total from all sources and keep the daily average under 3,000 mcg.
- Copper per serving. Same reasoning against a 10 mg daily upper limit.
- Which organs are in the blend. Liver, heart, kidney, spleen, and pancreas have different profiles. Kidney is the one that carries the cadmium consideration.
- Third-party heavy metal testing. Not universal in this category. When a certificate of analysis is published, it is a meaningful signal.
- Suggested serving size. A $30 bottle at 6 capsules a day costs more per month than a $50 bottle at 2 capsules a day. Compare cost per serving, not cost per bottle.
- Country of origin and grass-fed status. Worth having, and less decisive than the four points above.
Who these are for, and who should skip them
A reasonable fit: people who want the copper, choline, and B12 profile of liver and will not eat it; people on restricted diets low in animal organ tissue; and people who want a modest, controlled retinol source rather than a 100 gram serving that exceeds the daily limit in one sitting.
Not a fit: anyone already eating liver weekly and taking cod liver oil, since the retinol stacks. Anyone whose actual problem is a measured deficiency in a specific nutrient — targeted repletion at a known dose beats a whole-food capsule with an unlabeled nutrient content. And anyone in the contraindicated groups: pregnancy, systemic retinoid therapy, Wilson disease, hemochromatosis or elevated ferritin, and gout.
One more group worth naming: vegetarians considering these products for iron or B12. Organ capsules are animal tissue, which usually disqualifies them on the same grounds as the food. Targeted B12 and iron supplements do the same job without the conflict, and with a labeled dose. See the energy and deficiency guide for the thresholds.
What to measure
- Ferritin, with CRP and transferrin saturation — before starting and at 12 weeks. Heme iron accumulates, and this is the pair that shows it.
- Serum copper and ceruloplasmin — the copper status check in either direction.
- B12, and homocysteine if B12 was borderline — homocysteine falling is the functional confirmation.
- Liver enzymes (ALT, AST) — the earliest marker of chronic retinol excess, and cheap to include.
- Zinc — if you take a copper-dense product daily, the copper-to-zinc ratio is worth watching.
Frequently Asked Questions
Are organ meat supplements as good as eating liver?
They deliver the same nutrients in a much smaller dose, and the arithmetic is worth knowing. Fresh liver is roughly 70–75% water, so a 500 mg capsule of dried liver corresponds to about 2 grams of fresh liver. A typical 6-capsule daily serving is therefore equivalent to about 12 grams of liver — roughly one eighth of a 100 gram portion. That is a meaningful nutritional contribution and not a replacement for the food. The upside is the same ratio in reverse: capsules are far less likely to push you past the vitamin A upper limit.
What is the best organ meat supplement brand?
No single brand leads on every criterion, and the differences are smaller than the marketing implies. Ancestral Supplements has the broadest single-organ catalog. Force Factor is generally the cheapest and easiest to find in retail. Heart & Soil, Paleovalley, and Codeage focus on pre-built multi-organ blends. Perfect Supplements offers powder alongside capsules and discloses heavy metal testing. Choose on the three things that actually vary: whether you want single-organ or blended, whether the label discloses per-serving vitamin A and copper, and whether third-party testing is published.
Why do most labels not list vitamin A?
Because these products are sold as whole-food supplements, and the regulations do not require an assay of every naturally occurring nutrient. Many labels state only the milligrams of dried organ per capsule. That leaves you unable to add the retinol into your daily total, which matters if you also take cod liver oil or a retinol-containing multivitamin. Brands that publish per-serving vitamin A and copper are giving you information you can actually use, and that disclosure is a better quality signal than any sourcing narrative.
Is freeze-dried better than desiccated?
Marginally, and less than the label copy suggests. Freeze-drying removes water at low temperature and preserves heat-sensitive B vitamins slightly better. Low-temperature desiccation gets close. The fat-soluble vitamins, minerals, and B12 that make organ supplements worth taking survive both processes. Dose per serving and disclosed testing matter more than the drying method.
Are there heavy metal concerns?
Yes, specifically with kidney. The liver and kidney are the organs that concentrate cadmium, and kidney accumulates it most. Cadmium has a biological half-life in the human body measured in decades and accumulates in the renal cortex. Beef from older animals carries more. This is the strongest argument for choosing a brand that publishes third-party heavy metal testing, and for treating multi-organ blends containing kidney as an occasional rather than daily product.
Who should not take organ supplements?
The same groups who should not eat liver. Pregnant women, because of preformed vitamin A. Anyone on isotretinoin or acitretin, which are retinoid drugs that stack additively with dietary retinol. Anyone with Wilson disease, given the copper content. Anyone with hereditary hemochromatosis or elevated ferritin, since heme iron cannot be excreted. And anyone with gout, because organ tissue is high in purines.
How much should I take?
Follow the label serving and then check it against your other sources. Most products suggest 3–6 capsules daily, which lands near the equivalent of 6–12 grams of fresh liver — enough to contribute meaningfully to copper, B12, and choline without approaching the 3,000 mcg vitamin A limit on its own. The risk appears when organ capsules are stacked with cod liver oil and a retinol-containing multivitamin. Add up preformed retinol across everything before increasing the dose.
Related
- Nutrient density guides — the full hub
- Beef liver benefits — the food, and the frequency math
- Collagen supplements compared
- Supplement guides — how to read any supplement label
- Nutrition guides