Passage Summary: People think eating fake fat will make them skinny, but they'll probably be disappointed because they end up eating more of other things anyway.

Conclusion: Consumers who believe that fat substitutes will help them drop weight will likely be let down.

Reasoning: Studies show that people who eat 'fake fat' products usually compensate by consuming enough extra calories to offset any savings.

Analysis: In this 'Identify the Conclusion' task, the main point is signaled by the transition word 'however' in the second sentence. The first sentence provides context about consumer excitement, while the final sentence provides the empirical evidence supporting the dietitian's prediction. Your focus should be strictly on the claim that these consumers' expectations of weight loss are likely to go unfulfilled.