Has anyone noticed high serotonin symptoms from eating Kiwi fruit? It consistently makes me sleepy and 2 kiwi fruit about an hour before bed dramatically improves my REM Sleep, which is not good for me, because more REM = Worse mood and energy the following day.
I found this:
"Although further research into the sleep-promoting mechanisms of kiwifruit is needed, several explanations for the effects of kiwifruit on sleep exist. Lin et al. (46) hypothesized that the high antioxidant capacity and serotonin and folate content of kiwifruit may contribute to the observed sleep benefits of kiwifruit consumption" -
Effects of Diet on Sleep Quality
And then this one:
Serotonin content of foods: effect on urinary excretion of 5-hydroxyindoleacetic acid.
Using a highly specific radioenzymatic assay we determined the serotonin concentration in 80 types of foods. The following fruits had a high serotonin concentration (mean +/- SEM) expressed in micrograms/g weight: plantain 30.3 +/- 7.5; pineapple 17.0 +/- 5.1; banana 15.0 +/- 2.4; Kiwi fruit 5.8 +/- 0.9; plums 4.7 +/- 0.8; and tomatoes 3.2 +/- 0.6. Only nuts in the walnut or hickory family had a high serotonin concentration expressed in micrograms/g weight; butternuts 398 +/- 90; black walnuts 304 +/- 46; English walnuts 87 +/- 20; shagbark hickory nuts 143 +/- 23; mockernut hickory nuts 67 +/- 13; pecans 29 +/- 4; and sweet pignuts 25 +/- 8. Ingestion of these fruits and nuts resulted in an increase in urinary 5-hydroxyindoleacetic acid excretion with no change in platelet serotonin concentration. The above foods should not be eaten while a urine is being collected for 5-hydroxyindoleacetic acid analysis.
Serotonin content of foods: effect on urinary excretion of 5-hydroxyindoleacetic acid. - PubMed - NCBI
I found this:
"Although further research into the sleep-promoting mechanisms of kiwifruit is needed, several explanations for the effects of kiwifruit on sleep exist. Lin et al. (46) hypothesized that the high antioxidant capacity and serotonin and folate content of kiwifruit may contribute to the observed sleep benefits of kiwifruit consumption" -
Effects of Diet on Sleep Quality
And then this one:
Serotonin content of foods: effect on urinary excretion of 5-hydroxyindoleacetic acid.
Using a highly specific radioenzymatic assay we determined the serotonin concentration in 80 types of foods. The following fruits had a high serotonin concentration (mean +/- SEM) expressed in micrograms/g weight: plantain 30.3 +/- 7.5; pineapple 17.0 +/- 5.1; banana 15.0 +/- 2.4; Kiwi fruit 5.8 +/- 0.9; plums 4.7 +/- 0.8; and tomatoes 3.2 +/- 0.6. Only nuts in the walnut or hickory family had a high serotonin concentration expressed in micrograms/g weight; butternuts 398 +/- 90; black walnuts 304 +/- 46; English walnuts 87 +/- 20; shagbark hickory nuts 143 +/- 23; mockernut hickory nuts 67 +/- 13; pecans 29 +/- 4; and sweet pignuts 25 +/- 8. Ingestion of these fruits and nuts resulted in an increase in urinary 5-hydroxyindoleacetic acid excretion with no change in platelet serotonin concentration. The above foods should not be eaten while a urine is being collected for 5-hydroxyindoleacetic acid analysis.
Serotonin content of foods: effect on urinary excretion of 5-hydroxyindoleacetic acid. - PubMed - NCBI