The mercury question follows tuna everywhere. Into grocery carts, recipe searches, lunchbox decisions. What never follows it: the name of the compound that makes the question less interesting. Selenoneine makes up 98% of the organic selenium in tuna muscle, and it binds methylmercury directly. Selenium-to-mercury molar ratios in tuna range from 10:1 to 74:1. The mercury is outnumbered before the can is open.
That is what sits behind these 33 recipes. Not just protein, though 82% of the collection delivers above 40g per plate, with a median of 48g. Not just speed, though 12 require nothing but a can opener and land on the table in three to five minutes. What makes a tuna recipe collection worth bookmarking is what the fish itself carries.
That rumor about a cap on useful protein per sitting? Researchers in 2023 used quadruple isotope labeling to follow 100g of protein through the body for half a day. Digestion never stalled. No upper limit emerged, no cutoff materialized, and nothing was discarded. Every plate here lands in the 40-60g range. The body keeps working.
One in three recipes swaps mayo for yogurt. Five use fresh tuna steak instead of canned. The collection splits across 28 canned tuna recipes for weekday speed and 5 tuna steaks for when dinner earns a centerpiece. Both formats carry the same selenoneine. Both deliver the same protein density. The difference is the moment, not the fish.