5 Potential Signs You’re Eating Too Much Sugar

You feel sluggish throughout the day.

What goes up must come down. After sugar causes an initial spike of insulin and that "high" feeling, it causes an inevitable crash. "Energy is most stable when blood sugar is stable, so when you’re consuming too much sugar, the highs and lows of your blood sugar lead to highs and lows of energy," Alpert says. Eating a lot of sugar also means it's likely you're not eating enough protein and fiber, both important nutrients for sustained energy.