Yes, even healthy food options can make us tired. Although the potassium found in bananas is actually a source of pure energy, this healthy fruit also contains L-tryptophan, a well-known amino acid that is transformed into 5-HTP, a.k.a. oxitriptan in the brain.
How can this amino acid affect our energy?
Well… in the brain, oxitriptan is converted into two hormones: serotonin and melatonin. And while serotonin can improve mood, the latter, melatonin is responsible for regulating our internal clocks, making us sleepy after eating bananas.
You can banish fatigue by pairing bananas with nuts or Greek yogurt.