Spanish language learning forums

Spanish language learning forums (https://forums.tomisimo.org/index.php)

- Idioms & Sayings (https://forums.tomisimo.org/forumdisplay.php?f=30)

- - Le resta sabor (https://forums.tomisimo.org/showthread.php?t=8768)

Does this mean quita el sabor de?

I agree... and so does Oxford Bilingual,
restar vt
a (Mat) ‹ número › to subtract, take away; restar algo DE algo to take (away) something FROM something,
subtract something FROM something; restar 15 de 36 = take 15 (away) from 36, subtract 15 from 36
b ‹ gastos/cantidad › to deduct, take away; restar algo A algo to take away o deduct something FROM something
c ‹ importancia/credibilidad/mérito ›: quiso restarle importancia al incidente he tried to minimize o play down the importance of the incident; estos hechos restan credibilidad a la hipótesis these facts detract from the credibility of the hypothesis, these facts make the hypothesis less credible :)

Thanks. I learn something every day. Now I have to remember it.

You're welcome.
One way to remember is to make up sentences of your own with the new word and/or expression... It may take a bit of extra time, but if you create 15 or 20 sentences expressing your own ideas... or otherwise, using the word, it helps a lot to make it 'yours', and remembering from here on out... :twocents: :)