Make the app/site to register the time of the entry automatically for every new entry.
Thats it. Thats important for those with time-oriented diets. I am having problems with my glucose levels so I need to know the time I ate everything I register otherwise my glucose measurements are of no help. People with intermittent-fasting shall have similar necessities. We can register it adding notes for every meal but that doubles the work we have registering our meals and activities. Thats the oposite of the main purpose of such apps, i think: to make these things more practical.