Scallop
Scallops are bivalve mollusks prized as a seafood protein source, offering high-quality protein, minerals including selenium and zinc, and omega-3 fatty acids with minimal connective tissue.
Also known as: bay scallop, sea scallop, scallop muscle, adductor muscle
Scientific & Editorial Standard: This information is synthesized from peer-reviewed databases (such as PubMed, NIH, NHS, and Mayo Clinic) and validated using multi-model cross-referencing by the Plateify Editorial Team. It is intended for educational purposes and is not medical advice. If you suspect food sensitivities, consult a healthcare provider.
Scallops are marine bivalve mollusks found in oceans worldwide and harvested commercially across temperate and cold waters. The adductor muscle—the part typically eaten—has a mild, slightly sweet flavor and firm texture. Scallops are prepared by pan-searing, grilling, steaming, or including in pasta and risotto dishes. They are available fresh, frozen, and occasionally live in the shell.
Scallops are approximately 74–76% water by cooked weight. A 3-ounce (85 g) cooked serving provides roughly 17–20 g of protein, less than 2 g of fat, and a small amount of carbohydrate (approximately 2–3 g, primarily as glycogen). They are rich in selenium, zinc, phosphorus, and B vitamins, particularly B12 and niacin. The protein is highly digestible and contains all essential amino acids. Scallops contain small amounts of omega-3 polyunsaturated fatty acids, though substantially less than fatty fish such as salmon. They are easily tolerated by most people without shellfish allergy or relevant digestive conditions.
Allergenicity and Shellfish Sensitivity
Scallops are shellfish and a recognized major food allergen. Shellfish allergy affects an estimated 0.5–2% of adults in the United States, with prevalence varying by geography, dietary patterns, and age. Allergic reactions range from oral itching and urticaria to anaphylaxis in severe cases. Cross-contamination with other shellfish during harvesting, processing, or preparation is common. IgE-mediated shellfish allergy typically appears in adulthood, unlike peanut or tree-nut allergies which often begin in childhood.
Portion and Tolerance
A typical serving of scallops is 3 to 4 ounces (85–115 g) cooked, which provides approximately 17–25 g protein and is well-tolerated by individuals without shellfish allergy or digestive pathology. Raw or undercooked scallops carry a risk of viral and bacterial contamination, including Vibrio and Norovirus; thorough cooking to an internal temperature of 145°F (63°C) is recommended to eliminate this hazard. Individuals with shellfish allergy must avoid scallops entirely. Those with compromised immune function should eat only thoroughly cooked scallops from reputable sources. Scallops harvested from waters with harmful algal blooms may accumulate biotoxins and pose a health risk; regulatory monitoring limits this risk in most developed markets.
Frequently Asked Questions
Are scallops safe for people with shellfish allergy?
No. Scallops are shellfish and will trigger an allergic reaction in individuals with IgE-mediated shellfish allergy. Those with a diagnosed shellfish allergy must avoid scallops entirely. Whether someone allergic to one shellfish species can tolerate another varies significantly by individual and should only be assessed by an allergist — never by self-testing.
How much protein do scallops contain?
A 3-ounce (85 g) serving of cooked scallop contains approximately 17–20 g of complete protein, making it a high-protein food comparable to poultry and lean meat. The protein is highly digestible and contains all essential amino acids, supporting muscle maintenance and recovery.
Should I eat raw or undercooked scallops?
Thorough cooking to an internal temperature of 145°F (63°C) is recommended to eliminate the risk of Vibrio, Norovirus, and other pathogens. Raw or undercooked scallops carry a documented foodborne illness risk, particularly for individuals with compromised immune function or liver disease.
Are scallops a good source of omega-3 fatty acids?
Scallops contain modest amounts of omega-3 polyunsaturated fatty acids, substantially less than oily fish such as salmon or mackerel. For significant omega-3 intake, fatty fish are a more reliable choice.
Sources
- Shellfish Allergy — Mayo Clinic
- Food Allergens — Shellfish — FDA
- Scallops, Mixed Species, Cooked — FoodData Central — USDA FoodData Central
- Vibrio Illness (Vibriosis) — CDC
Educational content: This page is for general informational purposes only. Individual responses to foods vary widely. If you suspect a food allergy or sensitivity, consult a licensed dietitian, allergist, or physician before making dietary changes. Full disclaimer
Some content on this site is AI-assisted. While we strive for accuracy, information may not reflect the latest research. Always verify health information with a professional.
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