Organ Meats on Paleo: Liver Nutrition, Limits & Recipes

By Paleo Life Coach Editorial Team · Last updated September 25, 2026 · Nutrition from USDA FoodData Central

You’ve probably seen the claim that liver is “nature’s multivitamin,” usually right before a recipe that nobody in the house wants to eat. Organ meats on the paleo diet do earn their place, but the useful questions are practical: which organs are worth buying, what’s actually in them, how much liver is too much, and how to cook them so they taste good. This guide answers each with USDA nutrient data, the official upper limits and three recipes with real amounts.

The quick version: Organ meats are paleo and very nutrient-dense. A 3-ounce serving of pan-fried beef liver has about 6,580 mcg of vitamin A and 12 mg of copper, both above the adult daily upper limits of 3,000 mcg and 10 mg. Heart, kidney and tongue have almost no vitamin A, so they’re easier to eat often.

Are organ meats paleo?

Yes. Organ meats (also called offal or variety meats) are unprocessed animal foods, which puts them squarely on the paleo food list described in Harvard’s paleo diet review. The paleo case for them is also historical: hunters who killed a large animal had every reason to eat all of it, and our overview of what Paleolithic humans actually ate covers what the archaeological record can and can’t tell us.

The modern reason is simpler. Muscle meat is an excellent protein source, but organs carry far more of certain vitamins and minerals per bite. That matters on paleo, where dairy and fortified grains are off the menu. Our guide to paleo nutrient gaps covers the nutrients paleo eaters most often run short on; organ meats help with some of them (B12, iron, folate) but not calcium.

What nutrients are in liver, heart and kidney?

Liver stands apart for vitamin A, copper, B12 and folate; heart and kidney are closer to lean muscle meat with extra B12 and iron. The table puts seven cooked organ meats next to ordinary ground beef so you can see the difference per serving.

What nutrients are in liver, heart and kidney?
Cooked, per 3 oz (85 g)	Calories	Protein	Vitamin A (mcg RAE)	Vitamin B12 (mcg)	Iron (mg)	Copper (mg)	Folate (mcg DFE)
Beef liver, pan-fried	149	22.5 g	6,582	70.7	5.2	12.4	221
Lamb liver, braised	187	26.0 g	6,367	65.0	7.0	6.0	62
Pork liver, braised	140	22.1 g	4,594	15.9	15.2	0.5	139
Chicken liver, pan-fried	146	21.9 g	3,652	18.0	10.9	0.5	476
Beef kidney, simmered	134	23.2 g	0	21.2	4.9	0.5	71
Beef heart, simmered	140	24.2 g	0	9.2	5.4	0.5	4
Beef tongue, simmered	241	16.4 g	0	2.7	2.2	0.1	6
Ground beef 85% lean, broiled	212	22.0 g	3	2.2	2.2	0.1	8

Source: USDA FoodData Central, SR Legacy “variety meats and by-products” entries, scaled from per-100 g values to 85 g.

To put those numbers against daily needs, Harvard’s nutrient pages list adult RDAs of 2.4 mcg of vitamin B12, 8 mg of iron for men and 18 mg for women aged 19-50, and 900 mcg of copper. One serving of beef liver has about 29 times the B12 RDA. Heart gives nearly four times the B12 RDA with none of liver’s vitamin A load, which is why many people find it the easiest organ to eat regularly.

How much liver is too much?

For vitamin A, one 3-ounce serving of beef or lamb liver is already more than twice the adult upper limit, so liver works best as an occasional food rather than a daily one. Chicken and pork liver carry less, but still more than a day’s upper limit per serving.

According to Harvard’s vitamin A page, the adult RDA is 900 mcg RAE for men and 700 mcg RAE for women, and the Tolerable Upper Intake Level for preformed vitamin A (the kind in animal foods) is 3,000 mcg. The page also explains that vitamin A is fat-soluble and stored, so excess builds up rather than washing out. Copper has its own limit: Harvard’s copper page gives an adult UL of 10,000 mcg (10 mg) a day, and beef liver is the one common food that can pass it in a single serving.

The UL is defined as the maximum daily intake unlikely to cause harm over time, so what matters most is your usual intake. Here’s what some common habits add up to when you average them across a week.

How much liver is too much?
Habit	Vitamin A from liver, averaged per day	vs 3,000 mcg UL	Copper from liver, averaged per day
3 oz beef liver, every day	6,582 mcg	219%	12.4 mg
3 oz beef liver, twice a week	1,881 mcg	63%	3.5 mg
3 oz beef liver, once a week	940 mcg	31%	1.8 mg
3 oz chicken liver, twice a week	1,043 mcg	35%	0.1 mg
1 blended liver burger (recipe below), 3 times a week	483 mcg	16%	0.9 mg

Arithmetic: per-serving values from the USDA table × servings per week ÷ 7. This averages liver only; eggs, fish and any supplements add more preformed vitamin A.

A few cautions sit behind that table. Cod liver oil and many multivitamins also contain preformed vitamin A, and Harvard notes cod liver oil can exceed the RDA on its own. If you take either, count them. And if you’re pregnant, have liver disease or take medication that affects vitamin A, talk to your doctor or a registered dietitian before adding liver to your week.

Which organ meat should you start with?

Start with the organ whose taste and nutrient load suit you, not the one with the most impressive numbers. A simple way to decide:

You want the mildest flavor: beef heart. It’s a hard-working muscle, so it cooks and tastes like a lean steak. No vitamin A limit to track.
You want liver’s nutrients without a strong taste: chicken livers blended into pâté, or a small amount of beef liver ground into burgers.
You like rich, soft textures: beef tongue, simmered until tender and sliced. It’s fattier (241 calories per 3 oz) but very mild.
You want the most iron: pork liver at 15.2 mg per 3 oz, then chicken liver at 10.9 mg.
You’re cooking for kids or picky eaters: blended burgers or meatballs, where liver is a quarter of the meat or less.

Kidney has a stronger smell; soak it in cold salted water for an hour and trim the white core before cooking. Save it for once you’re comfortable with heart and liver.

How do you cook organ meats safely?

Cook them to the same temperatures as the animal they come from. The FDA’s safe food handling chart lists 165°F for poultry (whole, parts and ground), 160°F for ground meat and 145°F with a 3-minute rest for whole cuts of beef, pork, veal and lamb. The chart has no separate line for organ meats, so treat chicken livers as poultry parts (165°F) and any ground liver mixture as ground meat (160°F).

Other handling points from the same FDA page apply here too: keep raw organ meat separate from ready-to-eat food, refrigerate within 2 hours of cooking, and reheat leftovers to 165°F. Liver is perishable, so cook it within a day or two of buying or freeze it.

Three paleo organ meat recipes with real amounts

These recipes use only paleo ingredients. Nutrition notes come from the USDA values above; your totals will vary with brands and trimming.

Chicken liver pâté (makes about 2 cups, 8 servings)

1 lb (454 g) chicken livers, trimmed of any green spots and connective tissue
4 tbsp olive oil or rendered bacon fat, divided
1 medium shallot, chopped
2 cloves garlic, chopped
1 tsp fresh thyme leaves (or ½ tsp dried)
2 tbsp apple cider vinegar or brandy
½ tsp salt, black pepper to taste
Pat the livers dry. Heat 2 tbsp fat in a large skillet over medium-high heat.
Cook the livers in one layer, 2 to 3 minutes per side, until they reach 165°F in the center.
Lower the heat, add the shallot, garlic and thyme, and cook 2 minutes. Add the vinegar and scrape the pan.
Blend everything with the remaining 2 tbsp fat, salt and pepper until smooth. Chill at least 2 hours.

Vitamin A per serving: 1 lb of raw livers split eight ways is about 57 g of raw liver each. USDA lists raw chicken liver at 3,296 mcg RAE per 100 g, so each ¼-cup serving carries roughly 1,870 mcg (57 × 32.96), under the UL but about twice the men’s RDA. Serve with cucumber rounds, endive or carrot sticks.

Beef liver and onions (serves 4)

1 lb (454 g) beef liver, sliced ¼ inch thick
4 slices bacon, chopped
2 large onions, thinly sliced
3 tbsp cassava or arrowroot flour
½ tsp salt, ½ tsp pepper, ½ tsp smoked paprika
1 tbsp chopped parsley
Optional: soak the liver in cold water with a squeeze of lemon for 30 minutes to soften the flavor, then pat dry.
Crisp the bacon in a skillet; remove it and leave the fat. Cook the onions in the fat over medium heat for 15 minutes until golden. Set aside.
Mix the flour with the salt, pepper and paprika, and dredge the liver.
Cook the liver over medium-high heat about 2 minutes per side, just until it reaches 145°F, then rest 3 minutes. Overcooked liver turns grainy and bitter.
Top with the onions, bacon and parsley.

Each serving is about 3 oz of cooked liver, so it carries the full 6,582 mcg vitamin A figure from the table. This is the dish to eat once a week, not daily.

Blended liver burgers (makes 5 patties)

1 lb (454 g) ground beef, 85% lean
4 oz (113 g) raw beef liver, puréed in a food processor or very finely chopped
1 tsp salt, 1 tsp garlic powder, 1 tsp onion powder, ½ tsp black pepper
Mix everything gently and shape into 5 patties of about 4 oz each.
Grill or pan-fry to 160°F, about 4 to 5 minutes per side.

Worked vitamin A math: raw beef liver has 4,968 mcg RAE per 100 g in USDA data. Each patty contains about 22.7 g of raw liver (113 g ÷ 5), or about 1,130 mcg of vitamin A. That’s more than the men’s RDA but well under the 3,000 mcg UL, which is why this is the easiest way to eat liver regularly. Put them in easy paleo bowls or lettuce wraps.

Where do you buy organ meats?

Look in the freezer case at large supermarkets, ask at the meat counter (many butchers will order liver, heart or tongue if they don’t stock it) and check local farms and farmers’ markets that sell by the cut. Chicken livers are the most widely available fresh. Organ meats are often cheaper per pound than steak, though BLS doesn’t publish a national average price for them, so we can’t give you a verified figure. For general cost planning, see how much the paleo diet costs.

Bones and connective tissue from the same sources make excellent paleo bone broth.

Common organ meat mistakes

Eating liver every day. One serving of beef or lamb liver exceeds the vitamin A and copper upper limits. Once or twice a week is plenty.
Stacking vitamin A sources. Liver plus cod liver oil plus a multivitamin can add up fast. Check labels.
Overcooking liver. Pull beef liver at 145°F and rest it; past that it gets tough and bitter.
Starting with kidney. The strong smell turns people off organ meats for good. Start with heart or pâté.
Assuming organ meats fix calcium. They don’t. Paleo calcium comes from canned fish with bones, greens and nuts.

Frequently asked questions about organ meats on paleo

Are organ meats allowed on the paleo diet?

Yes. Liver, heart, kidney, tongue and other organ meats are unprocessed animal foods, so they fit every version of the paleo diet. They’re also one of the most nutrient-dense foods on the paleo list, especially for vitamin B12, iron, folate and vitamin A, according to USDA FoodData Central data.

How often should you eat liver on paleo?

Once or twice a week works for most adults. A 3-ounce serving of beef liver has about 6,580 mcg of vitamin A, more than double the 3,000 mcg adult upper limit, and about 12 mg of copper against a 10 mg limit. Averaged over a week, one serving comes to about 940 mcg of vitamin A per day.

Is chicken liver or beef liver better?

They’re different rather than better. Beef liver has more vitamin A, B12 and copper per serving; chicken liver has more iron and folate and roughly half the vitamin A. Chicken liver is milder and cheaper to find fresh, which makes it a good first choice for pâté. Beef liver suits liver and onions or blended burgers.

What organ meat tastes the most like regular meat?

Beef heart. It’s a muscle, so its texture and flavor are close to a lean steak, and it has no vitamin A to limit. Slice it thin and grill it over high heat, or cube it into skewers. Tongue is also mild once simmered and peeled, but it’s softer and fattier.

Can you eat too much vitamin A from liver?

Yes. Preformed vitamin A from animal foods is stored in the body, and Harvard notes that stored excess can become toxic. The adult upper limit is 3,000 mcg a day. Beef and lamb liver pass that in a single 3-ounce serving, so keep liver to occasional meals and count supplements and cod liver oil too.

Your next step: try heart or a blended burger this week

If organ meats are new to you, skip the plate of liver and onions for now. Make the blended liver burgers or grill a few strips of beef heart, and see how they fit into your week. Keep beef liver to an occasional serving. To place organ meats in the wider paleo pattern, the paleo fundamentals guide is the place to start.

This article is general nutrition information, not medical advice. Talk to your doctor or a registered dietitian before adding liver regularly if you’re pregnant, take vitamin A supplements or have a health condition.

Organ Meats on the Paleo Diet: Liver, Heart and Kidney by the Numbers, Plus How Much Is Too Much