Eating for Exercise

Exercise? I thought you said EXTRA FRIES! 

This is Sandra Tsing Loh with the Loh Down on Science.

After a long run or a heavy lift session, our appetites are often suppressed! Why does that happen? Where’s the beef? Enter Veronica Li and colleagues from Stanford University. 

They analyzed blood samples from mice who just completed strenuous treadmill workouts. Poor mice – I feel your pain. They noticed these mice produced an abundance of a molecule called Lac-Phe. This molecule comes from lactate, which makes your muscles burn during a workout. Plus phenylalanine which makes up proteins.

When given Lac-Phe supplements, chubby mice reduced their food intake by fifty percent! They also shed some squeaky pounds! But does this molecule work out FOR US? It HAS BEEN found in people who performed rigorous exercise. 

This finding might explain why some aren’t so hungry after working out. Soon we may be able to mimic weight loss effects for those who can’t exercise. Such as the elderly and disabled! 

I say, “Supplements, not sit ups!” 

Reference: Li, V. L., He, Y., Contrepois, K., Liu, H., Kim, J. T., Wiggenhorn, A. L., Tanzo, J. T., Tung, A. S.-H., Lyu, X., Zushin, P.-J. H., Jansen, R. S., Michael, B., Loh, K. Y., Yang, A. C., Carl, C. S., Voldstedlund, C. T., Wei, W., Terrell, S. M., Moeller, B. C., … Long, J. Z. (2022).