However, to our knowledge, only acute effects of dietary restrictions alone have been evaluated, and the sustainability of the achieved weight loss has not been evaluated. (academic.oup.com)
I am NOT saying that caffeine is the only ingredient research - backed to deliver acute effects on strength and performance in athletes. (seannal.com)
This discrepancy between short - and long - term effects of protein intake can be explained by differences in energy content and / or in long - term and acute effects of dietary protein. (care.diabetesjournals.org)