The term 'Sprats' Concerns' refers to the dietary concerns of a sprat, which is a type of small fish. Sprats are known for their lean bodies and low-fat content, so their concerns are related to these characteristics. The crossword solutions for this term are LEANS (5 letters) and FATS (4 letters). This indicates that the dietary concerns of a sprat are related to the amount of lean and fat content in its diet.