Whats the most effective way to balance sweet and savory flavors in on-bike nutrition to avoid palate fatigue, and should the ratio of sweet to savory change based on the intensity and duration of the ride? Are there specific sweet and savory flavor combinations that are proven to be more effective at stimulating appetite and preventing flavor burnout during long rides, and if so, what are they? Given that the bodys sense of taste is closely linked to smell, does the volatile nature of certain savory flavors, such as fish or egg, make them less suitable for on-bike consumption, and are there alternative savory options that are less likely to cause gastrointestinal upset or discomfort? How do different types of sweet and savory flavors interact with the bodys natural production of stomach acid and digestive enzymes, and are there certain combinations that can help to mitigate the negative effects of intense exercise on digestion? Can the strategic use of sweet and savory flavors be used to influence the bodys perception of effort and fatigue, and if so, what are the specific flavor combinations that are most effective at promoting a positive mental state during long rides?