Clearly he was not optimizing for overall individual welfare - there are strong diminishing returns for any single ingredient. Culinary and psychological satis

Clearly he was not optimizing for overall individual welfare - there are strong diminishing returns for any single ingredient. Culinary and psychological satisfaction is a valid target for optimization, otherwise the individual will drop the diet and endanger the quality of nutrition, given a limited budget. Or he might outright commit suicide after the second week, not healthy at all.