 The current randomised, placebo-controlled, double-blind, parallel groups study will examine the impact of a brown seaweed extract InSea2 on cognitive function post-prandially in 60 healthy non-elderly adults who self-report post-meal drowsiness. Computerised measures of episodic memory, attention and subjective state will be completed at baseline and for 3 hours following lunch with either seaweed or placebo consumed 30 minutes prior to a carbohydrate-rich meal. 