This has been sugar's main line of defense in recent years: Maintaining a healthy weight is all about calories in and calories out. If that were true, you could replace your daily healthy breakfast of Greek yogurt and berries with a donut and be none the wiser.
Sadly, not all calories are created equal.
"Sugar calories are not the same as fat calories, and not even the same as other types of sugar," Dr. Kumar says. "Sugar, particularly fructose, may stimulate insulin resistance, which can lead to increased blood sugar and more abdominal fat."
So when your body processes sugar, it uses it in completely different (and potentially harmful) ways compared to nutrients like fat and protein.
Sugar is all-natural, therefore it's healthy
"Because it’s all-natural, you can consume it with confidence."