How Much Sugar Can You Have on the Keto Diet? This Expert Explains

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POPSUGAR Photography | Sheila Gim
POPSUGAR Photography | Sheila Gim

By now, you're probably familiar with the keto diet — the high-fat, moderate-protein, super-low-carb diet has helped people lose weight, gain energy, and transform their lifestyles. But as popular as the diet is, there are still many misconceptions about it.

For starters, many people think you can't eat any carbs at all in order to get into your body's fat-burning state of ketosis. In reality, some carbs are allowed: about 50 grams or fewer per day. But what about sugar? Keto dieters have all but eschewed the sweet stuff in favor of calorie-free sweeteners like stevia. Just look at this roundup of keto fat bombs: they're all sugar-free or incredibly low in sugar.

To find out just how much sugar you can eat on the keto diet, we asked Brittanie Volk, PhD, RD, senior clinical and patient engagement specialist at Virta Health, for answers.

"To achieve the many health benefits that a ketogenic diet has to offer, one needs to consume only the amount of carbohydrates that the individual can tolerate to stay in nutritional ketosis," she told POPSUGAR. "This amount differs from person to person but is generally less than 50 grams of total carbohydrates per day. That means all sources of carbohydrate, including refined sugar, should be limited to as little as possible to avoid the impact carbohydrates can have on blood sugar and insulin levels."

So while sugar is a carb and does count toward your 50 grams or fewer a day, you should still limit sugar intake so as not to spike your blood sugar. Yes, you can still have it, but make sure that sugar, combined with all your other sources of carbohydrates, stays below your threshold of about 50 grams a day.