There are, however, recommended limits on how much added sugar you should eat in a day, but even those vary. The FDA suggests that no more than 10 percent of your day's calories should come from ...

The Dietary Guidelines for Americans 2020–2025 offers slightly more lenient recommendations of no more than 200 calories (50 grams or 12 teaspoons) of added sugar in a 2,000-calorie diet.

How much sugar should an adult have in a day? Men, recommends the American Heart Association, should consume no more than 36 grams (9 teaspoons) of added sugar per day, or roughly 150 calories.

So, if you're eating a 2000-calorie diet that works out to about 50 grams (12 teaspoons) of sugar daily, or 364 grams (84 teaspoons) of sugar in one week.