01 · Lower on the food chain
Small fish.
Outsized nutrition.
When sustainably sourced, bivalves and small, oily fish are an excellent, nutrient-denseswap.Plus, since they sit lower on the food chain,theyrequire fewer resourcesthan predators (like salmon) to make the same amount of protein.Maybe bestof all: their smaller bodies and shorter lifespans mean thattheycontainfewer accumulated toxins.