What to check before buying desiccated liver tablets

Desiccated liver tablets on a supplement label are usually sold by weight of powder, not by milligrams of iron, so the first number you see is often 3,000 mg of liver and the iron sits somewhere far below it.

Start with the desiccated liver serving size

A jar that says 2,000 mg per serving is telling you how much dried glandular material went in. It isn't telling you how much iron, vitamin A or B12 arrived with it, because liver is a food ingredient and food ingredients vary by batch, by animal and by season. If the panel lists only the powder weight, you're reading a quantity, not a nutrient.

That's the first thing to check, and it takes about 4 seconds.

The row that carries the real figure

Inside Supplement Facts, look for individual nutrient rows with a percent daily value beside them. Vitamin A at 80 percent, B12 at 120 percent, iron at 15 percent. Those percentages are calculated against fixed daily values, and they give you something you can compare across brands.

Our grass fed beef liver gummies come in a 60 count jar at 2 gummies a day, a 30 day supply, and they're gummies rather than tablets. That difference matters. A tablet compresses powder with excipients, a gummy suspends it in a sugar and gelatin base, and the label has to declare the sweeteners, the gelling agent and any added vitamins separately. You can't swap one for the other by counting milligrams.

Read the other ingredients line too

Most people stop at the nutrients. The other ingredients line is where you find silicon dioxide, magnesium stearate, rice flour, tapioca syrup, cane sugar, pectin and citric acid. None of these is sinister. All of them are part of what you're swallowing, and if you're taking 6 tablets a day to reach a dose, the excipient load adds up faster than the active one.

For glandular products there's a second line worth finding: the source. Country of origin, grass fed or grain finished, pasture raised or conventional. A label that names the animal and the region has made a supply chain decision someone can verify. A label that says only bovine liver has not.

A shop aisle in February

I stood in a health food shop last February with two jars in each hand, both labelled desiccated liver, both 180 tablets, both roughly $24. One listed 3,000 mg per serving and nothing else. The other listed 3,000 mg plus vitamin A, B12, riboflavin and iron with percentages. The first jar was cheaper per tablet by about 9 cents.

The second jar cost more because someone paid for the assays that produced those rows. That's not a guarantee of quality, and it is a signal that the manufacturer knew which questions a buyer would ask.

Where the label stops helping

Liver is dense in vitamin A, and vitamin A is fat soluble, so it accumulates rather than flushing out. The tolerable upper level for preformed vitamin A in adults is 3,000 mcg RAE a day, and a 3 oz serving of cooked beef liver supplies far more than that in one sitting. A supplement built on dried liver sits in the same family of compounds, which is why stacking it with a multivitamin and a separate vitamin A product is worth thinking through before you do it rather than after.

None of that shows up on the front of the jar. The panel will tell you the vitamin A percentage if the brand chose to declare it, and that percentage is the only handle you get.

What I'd check in 60 seconds

Serving size and servings per container first, because a 180 count bottle at 6 a day is a 30 day supply and not a 6 month one. Then the individual nutrient rows, then the other ingredients, then the source line. If the panel has one number and the word liver, ask the seller for the rest before you buy.

A partial disclosure is a partial claim, and a brand that answers the question in an email within a day is showing you how it handles the ones you haven't asked yet.