The biggest positive effect of frequent smaller meals is steady blood sugar, which will have a very obvious impact on your mood and concentration. It also gives

The biggest positive effect of frequent smaller meals is steady blood sugar, which will have a very obvious impact on your mood and concentration. It also gives the body a more steady supply of nutrients, which is going to be better for any slow running activity of recovery. The downside I guess is that you always have some proportion of your body's energy working on digestion, which could lower peak performance. And obviously that it takes more time.