may 14, 1970 - LIQUID PROTEIN DIETS A comeback of over-the-counter liquid protein drinks prompted their effectiveness and safety to be questioned. It was found that many products were of poor quality and low in vitamins and minerals. The FDA would later require warnings on protein diets that supplied less than 400 calories per day.
Added to timeline:
Date:
may 14, 1970
Now
~ 55 years ago