CONCLUSION
The night milking technique increases melatonin concentrations
in milk. Consumption of formulations using milk obtained
at night resulted in increased plasma melatonin and urinary
sulfatoxymelatonin levels of rats. Milk obtained at night milking
and supplemented with tryptophan was most efficient in
increasing blood melatonin and urinary sulfatoxymelatonin levels
in Wistar rats. The combination of the night milking technique
with tryptophan supplementation resulted in a natural product
that improves sleep quality.