Lemon helps against nausea
In case of nausea, you should normally abstain from acidic I have heard, but of all lemon helps well against it!
Can happen sometimes that one has eaten too much or too confused and one is uncomfortable and bad afterwards. On the other hand, the lemon helps very well, simply cut open and add a few splashes to the palate, and after a few minutes the feeling of nausea is gone.
Helps me always very well! Of course, the nausea should last longer or be due to illness, this tip does not help, then there must be a doctor ran.