Are there any active studies on intermittent fasting in healthy young adults? (NY area) I’m interested in intermittent fasting but I’d like to objectively trac

Are there any active studies on intermittent fasting in healthy young adults? (NY area) I’m interested in intermittent fasting but I’d like to objectively track the effects beyond fat/weight loss. For example: ketone body blood concentration, respiratory exchange ratio, heart rate variability, etc. I couldn’t find anything here but maybe I’m not looking in the right place: https://clinicaltrials.gov/ct2/results?term=intermittent+fasting&Search=Apply&recrs=a&age_v=&gndr=&type=&rslt= https://clinicaltrials.gov/ct2/results?term=intermittent+fas...