Wild Fish, Oysters & Venison (Omega-3s, Vitamin D & Minerals)

Side by side

~ = estimated from the ingredients where the label doesn't say. Carp and venison figures come from the Real Provisions labels; the rest are USDA. Costs are rough 2026 retail prices. Full panels for every food are in the food database.

No single food wins. Salmon and sardines are the only ones that deliver a full omega-3 dose. Oysters are a mineral supplement in food form. The carp snack beats salmon on vitamin D and iron but has a fraction of the omega-3. The venison snack is the only one with meaningful vitamin A.

Omega-3s for the heart and brain

EPA and DHA are the long-chain omega-3s. They're built into cell membranes, especially in the brain, retina and heart, and the body makes very little of them from the plant omega-3 (ALA) in nuts and seeds. Oily fish is the practical source.

In a large review of cohorts and trials, eating about 250–500 mg of EPA and DHA a day (roughly two servings of oily fish a week) went with about 36% fewer deaths from coronary heart disease and 17% fewer deaths overall. Most of the benefit came from that first modest amount, with little extra above it.¹ One serving of salmon or one can of sardines covers about two days of that dose.

That's where the comparison is lopsided. Carp is a lean, freshwater fish, and a pack of carp bites has 3 g of total fat, of which perhaps 190 mg is EPA and DHA. You'd need five packs to match one portion of salmon. Drying also exposes the fat to air and heat, which oxidizes some of the omega-3 that's there. The venison snack, like all lean red meat, has essentially none.

Vitamin D without the sun

Very few foods contain much vitamin D, and oily fish are the main exception. Fish get it from plankton up the food chain, so a fish's diet sets its vitamin D. When wild and farmed salmon were measured side by side, wild salmon averaged about 990 IU per 3½ oz and farmed salmon about a quarter of that.² The same study found large swings between samples of the same species, so any figure for fish is an average, not a promise.

The carp snack's label lists 64 µg (2,560 IU) of vitamin D per pack. That's more than three times a portion of sockeye salmon. USDA data also put carp unusually high in vitamin D, so the number fits. A pack every few days is a real top-up in winter, and it's well inside the 4,000 IU daily upper limit. For how food compares with sunlight, see Vitamin D and Sunlight.

Zinc, copper, B12 and vitamin A

Oysters are the most concentrated food source of zinc and among the best for copper and B12. Six medium wild oysters hold about 66 mg of zinc (six times the daily need), 4.8 mg of copper and 15 µg of B12. Zinc and copper compete for absorption, so a food that brings both together is easier on the balance than a zinc pill (see Zinc and Copper). The freeze-dried capsule version is covered under Oyster.

Sardines are eaten with their soft bones, which makes a can a good calcium source (about 350 mg) alongside its B12 and selenium.

The venison snack is about 10% heart and liver. That sounds small, but the label shows it does a lot. One ounce has 680 µg of vitamin A (three-quarters of a day's need), 4.9 µg of B12 (two days' worth) and 0.75 mg of copper. Those come almost entirely from the liver, since muscle meat has very little vitamin A or copper. The heart adds CoQ10, but only a milligram or two per bag, against the 100–200 mg in a capsule. See Vitamin A and B12.

The carp snack has about 2 mg of iron per pack, roughly three times a portion of salmon, plus potassium and phosphorus. Its B12, B2 and B5 are lower than salmon's.

Low in mercury

Mercury builds up as it moves up the food chain, so the fish that carry the most are large, long-lived predators like swordfish, shark, king mackerel and bigeye tuna. Salmon, sardines and oysters sit near the bottom of the mercury tables. For these fish, the omega-3 benefit is far larger than the contaminant risk.¹

Silver and bighead carp, the species behind the carp snack, are filter feeders that strain plankton from the water.³ That puts them low on the food chain too, so they're expected to be low in mercury. Wild fish from Midwestern rivers can still pick up farm runoff and older industrial pollutants, which is why per-batch testing matters. The company posts its venison results, but no fish results are posted yet.

For deer, the concern is different: lead from bullets. Rifle bullets break up in the animal, and in one study about a third of packages of ground venison from rifle-shot deer contained lead fragments, often too small to see or feel.⁴ The venison snack's posted batch (October 2025) was clean: lead 9 parts per billion, cadmium 1, arsenic 1, mercury not detected, and no pesticides or mold toxins found. Lead fragments are scattered unevenly, so one small test sample can miss them. Copper bullets avoid the problem entirely.

The two snacks

Both come from Real Provisions, and both use animals that are causing damage where they live.

Wild River Bites are made from Asian carp (silver and bighead), which escaped into the Mississippi basin in the 1970s and now dominate long stretches of the Illinois and Mississippi Rivers. They eat the plankton that native fish and mussels depend on.³ Eating them is a real ecological good. The bites are flavored with coconut aminos, vinegar, honey, garlic, ginger, paprika and dried pineapple, so they contain some sugar. They don't taste like fish, which is the point for people who won't eat it otherwise.

The venison and organ bites are made from axis deer on Maui and nearby islands. The deer were introduced in the 1800s and 1900s, have no predators there, and overgraze native plants and farmland. They're harvested in the field rather than at a slaughterhouse. The ingredient list is just venison, heart, liver, salt and vinegar, with no sugar or celery-powder nitrite. Chronic wasting disease, the prion disease of deer, has never been found in Hawaii.

Pasture-raised and wild animals do carry more plant compounds (phenols, terpenes, carotenoids) in their meat and fat than grain-fed animals, because they eat a wider range of plants.⁵ The absolute amounts are tiny, though. The venison snack's own lab report lists 3.9 mg of total polyphenols per kilogram, about 0.1 mg per ounce, where a cup of tea has 100–200 mg. The reasons to eat it are the protein, the liver nutrients and how the animal was raised, not plant compounds.

How to eat them

• Salmon: wild sockeye or coho, 2–3 times a week. Frozen wild fillets and canned wild salmon both count, and canned salmon with the bones adds calcium. Farmed salmon is fed grain and soy, which means less omega-3, more omega-6 and much less vitamin D.
• Sardines: canned in olive oil or water, bones and skin included. A can or two works as a cheap stand-in for a salmon meal.
• Oysters: about 6 once a week covers zinc and copper. Cooked, smoked and canned oysters keep the minerals.
• Carp bites: a shelf-stable fish option for travel and a winter vitamin D top-up. Don't count them toward your omega-3s.
• Venison bites: an easy way to get a little liver. An ounce or two at a time is plenty.

Safety

Zinc: six oysters have about 66 mg of zinc, above the 40 mg daily upper limit. Once a week is fine, and the copper that comes with it offsets the main risk. A dozen every day for weeks is not a good idea.

Vitamin A: at 680 µg per ounce, a 4-oz bag of venison bites eaten at once comes close to the 3,000 µg upper limit for preformed vitamin A. That matters most in pregnancy, when high vitamin A is linked to birth defects. A handful a day is well within limits.

Sodium: a pack of carp bites has 1,780 mg of sodium, about ¾ tsp of salt. That's a lot for one snack, though for someone who cooks at home and eats little processed food it may just be useful salt (see Sodium).

Price: both snacks cost three to six times more per gram of protein than sardines or wild salmon. The extra cost buys convenience and the ecological good of eating invasive animals.