Escolar delivers 30g protein and 354 calories per 6-ounce serving—numbers we've verified across multiple industry sources and our own kitchen testing. This deep-sea fish carries 23.4g of fat with a silky texture that approaches premium tuna, but its unique wax ester content demands strict portion control. We've found that understanding these nutrition facts is non-negotiable for menu costing, guest safety, and building trust with diners who may not know escolar's digestive considerations. Quick Answers Escolar Escolar (Lepidocybium flavobrunneum) is a deep-sea fish delivering 30g of protein and 354 calories per 6-oz serving. Rich in fat with a buttery texture rivaling premium tuna. Contains indigestible wax esters requiring strict portion limits of 6 oz or less. IUCN status: Least Concern. Available year-round as tuna longline bycatch, primarily from the Gulf of Mexico and tropical waters worldwide. Top Takeaways
Complete Escolar Nutrition Breakdown A standard 6-ounce cooked portion of escolar provides approximately 354 calories, 30 grams of protein, 23.4 grams of total fat, and 175 milligrams of sodium. Per 100 grams (3.5 oz) of raw escolar, expect roughly 124 calories, 15 grams of protein, and 7 grams of fat—though these values increase significantly with cooking due to moisture loss. The protein content delivers roughly 60% of the daily value for most adults, making escolar an efficient protein source when portioned correctly. Escolar also contributes meaningful amounts of vitamin B12 and selenium, supporting red blood cell formation and thyroid function, respectively. Why Escolar Fat Content Matters Escolar's fat composition differs fundamentally from other fish. Approximately 20% of the fish's body weight consists of indigestible wax esters called gempylotoxin, which the fish cannot metabolize from its diet. These wax esters create escolar's signature buttery mouthfeel but pass through the human digestive system unprocessed. The FDA classifies escolar as having "purgative qualities" and advises against importation, though the fish remains legal in the United States with proper labeling. In our experience, the fat content directly impacts both flavor intensity and the portion control requirements that protect your guests. Safe Serving Sizes and Kitchen Guidelines Professional consensus limits escolar portions to 6 ounces or less per person. Chef Charlie Trotter famously served 3-ounce portions and noted that "a spoon is all you really need." We recommend treating escolar as a rich appetizer component rather than a main course protein. Tail cuts may contain slightly less fat than belly sections, though no preparation method reliably breaks down or neutralizes the wax esters. Deep skinning and removing the dark lateral line can reduce—but not eliminate—potential digestive effects. Staff training on portion control and guest communication remains essential for any operation serving this fish. Escolar vs. Other High-Protein Fish Compared to salmon (approximately 22g protein per 6 oz), escolar delivers roughly 36% more protein per serving. However, salmon and trout provide significantly more bioavailable omega-3 fatty acids without escolar's digestive considerations. Sablefish (black cod) offers a similar silky texture with digestible fats and stronger sustainability credentials. When building menus, we've found escolar works best as a specialty item with clear portion limits rather than a protein workhorse. "We've served escolar to thousands of guests over the years with zero issues—the key is treating it like foie gras or uni, not like a swordfish steak. Portion discipline isn't optional. At 30 grams of protein per 6-ounce serving, you're delivering serious nutrition in what should be a 3 to 4-ounce appetizer portion." Essential Resources on Escolar FDA Hazards and Controls Guidance: Official Safety Standards The definitive federal reference for gempylotoxin classification and escolar's "purgative qualities" designation. Required reading before adding this fish to your menu. https://www.fda.gov/food/seafood-guidance-documents-regulatory-information California Sea Grant Profile: Research-Backed Seafood Data Comprehensive species information, including habitat, fishery management under NOAA, and preparation guidelines from academic research. https://caseagrant.ucsd.edu/seafood-profiles/escolar SeafoodSource Handbook: Industry Buying and Handling Standards Trade-focused specifications for evaluating freshness, understanding market availability, and sourcing considerations for professional buyers. https://www.seafoodsource.com/seafood-handbook/finfish/escolar USDA FoodData Central: Verified Nutrient Database Government-maintained nutrition data for food costing, menu labeling compliance, and accurate dietary information. https://fdc.nal.usda.gov USDA MyPlate: Protein Recommendations in Context Federal dietary guidelines for seafood intake—8 ounces weekly minimum—plus protein daily values for menu planning. https://www.myplate.gov/eat-healthy/protein-foods IUCN Red List: Conservation Status Verification Current "Least Concern" status assessment for escolar—useful for sustainability communications and menu transparency. https://www.iucnredlist.org/species/190287/16510672 FishBase: Scientific Species Reference Taxonomic data, habitat depth ranges (200-1100m), and biological characteristics for species identification and staff education. https://www.fishbase.se/summary/lepidocybium-flavobrunneum.html Supporting Statistics
Final Thoughts Escolar delivers serious nutrition—30g protein per serving with premium texture at accessible pricing. But the FDA advisory exists for good reason. Our position: Escolar belongs on menus that commit to three non-negotiables:
Chefs who follow this approach consistently report excellent results. The nutrition supports serving escolar—operational discipline makes it sustainable. FAQ on Escolar Q: How many calories are in a serving of escolar? A: A 6-ounce cooked serving contains approximately 354 calories. We typically serve 3-4 oz portions, which deliver roughly 175-235 calories while maintaining the recommended safety margins. Q: Is escolar high in protein compared to other fish? A: Yes. Escolar provides 30g of protein per 6-ounce serving—about 36% more than salmon and roughly 60% of the daily value for most adults. We've found that this protein density makes even small portions satisfying. Q: Why does escolar cause digestive issues? A: Escolar contains indigestible wax esters (gempylotoxin) that comprise approximately 20% of its body weight. These pass through the digestive system unprocessed, potentially causing symptoms in sensitive individuals. Portion control is the only reliable mitigation. Q: What is the safe serving size for escolar? A: Industry consensus recommends 6 ounces maximum. Many experienced chefs—including Charlie Trotter—serve 3-ounce portions. In our experience, treating escolar as an appetizer-sized protein rather than a main course eliminates virtually all guest issues. Q: Is escolar banned in the United States? A: No. The FDA advises against importation, but escolar remains legal to sell with proper labeling. It's banned in Japan and Italy. We recommend transparent menu descriptions and server communication regardless of regulatory requirements. 
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