How much sugar per day, by the evidence

1. 01

   The 10% of calories ceiling: about 50 g/day

   The US Dietary Guidelines cap added sugar at under 10% of total daily calories, which is ~50 g/day on a 2,000-calorie diet (USDA/HHS 2020-2025). This is the regulatory upper bound, not an ideal; it scales with intake, so a 1,600-calorie diet targets ~40 g. It is the number the FDA's %DV for added sugars on the Nutrition Facts panel is built around, where 50 g equals 100% of the daily value.

2. 02

   The AHA target: 25 g women, 36 g men

   The American Heart Association recommends a tighter discretionary limit: no more than 25 g/day (6 tsp) of added sugar for women and 36 g/day (9 tsp) for men (Johnson et al. 2009). Children aged 2-18 should stay under 25 g/day, and children under 2 should have no added sugar at all. These figures are lower than the 10% ceiling because the AHA treats added sugar as discretionary calories with no nutritional necessity, so less is better.

3. 03

   Added sugar, not the sugar in fruit or milk

   The limit applies only to added sugar. The fructose in a whole apple and the lactose in plain milk are not counted, because they come packaged with fiber, water, and protein that blunt the glucose response and add satiety. This is why 'total sugars' on a label can look alarming on plain yogurt or fruit while the 'added sugars' line reads zero. Whole fruit is not the problem the guidelines are addressing; sweetened beverages and processed foods are.

4. 04

   Sugar-sweetened drinks are the first cut

   Sugar-sweetened beverages supply roughly a quarter to a third of all added sugar in the US diet and are the single most impactful category to cut (Ervin & Ogden 2013). One 12 oz soda carries ~39 g of added sugar, more than a woman's entire AHA daily limit; a 20 oz bottle carries ~65 g. Liquid sugar is worse than solid because it adds calories with almost no satiety, so it does not reduce later eating. Cutting drinks first is the highest-leverage single change.

5. 05

   Read the 'Includes Added Sugars' line

   Since 2020 the FDA has required a separate 'Includes Xg Added Sugars' line indented under Total Sugars, with a %DV based on the 50 g/day value (FDA Nutrition Facts final rule). This is the number to read, not Total Sugars, which lumps in natural fruit and dairy sugar. Ingredient lists also flag added sugar under many names, sucrose, dextrose, cane juice, corn syrup, maltose, so a product with sugar high in the list is added-sugar dense regardless of marketing.

6. 06

   Why the limit exists: displacement and liquid calories

   Added sugar is not uniquely toxic, but it is nutritionally empty and easy to over-consume. It displaces nutrient-dense food and, as a drink, adds calories without triggering fullness. Higher intake tracks with weight gain and raised triglycerides, and a large cohort found ~38% higher cardiovascular mortality at 17-21% of calories from added sugar versus under 10% (Yang et al. 2014). The mechanism is dose and delivery, not sugar as a molecule, so the target is total added-sugar load.

7. 07

   Naturally occurring sugar you do not need to cut

   Whole fruit, plain milk and yogurt, and vegetables carry sugar that comes with fiber, water, protein, and micronutrients. Their glucose response is slower and their satiety higher, and prospective data links whole-fruit intake to lower, not higher, disease risk. Fruit juice is the exception: stripping the fiber turns it into a liquid-sugar source that behaves more like soda, which is why guidelines treat 100% juice with more caution than the whole fruit it came from.

What people ask us next.

Q01

How much sugar should I eat per day?

The US Dietary Guidelines cap added sugar at under 10% of daily calories, about 50 g on a 2,000-calorie diet. The American Heart Association sets a tighter target of 25 g/day for women and 36 g/day for men (Johnson et al. 2009). These limits apply to added sugar only, not the sugar naturally in whole fruit, plain milk, or vegetables. The average US adult takes in ~68 g/day, so most people are well over both numbers.

Q02

Does the sugar in fruit count toward the daily limit?

No. The limits apply to added sugar, not to the sugar naturally present in whole fruit, plain dairy, and vegetables. That natural sugar arrives with fiber, water, and micronutrients that slow its absorption and increase fullness, and whole-fruit intake is linked to lower disease risk in prospective studies. The exception is fruit juice, which removes the fiber and behaves more like a sweetened drink, so guidelines treat it with more caution than whole fruit.

Q03

Is 50 grams of sugar a day too much?

50 g of added sugar is exactly the US Dietary Guidelines ceiling of under 10% of a 2,000-calorie diet, so it is the upper bound rather than a healthy target. It is above the American Heart Association's tighter limits of 25 g for women and 36 g for men. If the 50 g comes mostly from sweetened drinks and processed food, most nutrition guidance would consider it high; the AHA numbers are the better everyday goal.

Q04

How much sugar per day to lose weight?

There is no separate weight-loss sugar number; cutting added sugar toward the AHA targets of 25 g (women) and 36 g (men) supports weight loss mainly by removing empty liquid calories. Sugar-sweetened drinks add calories without satiety, so cutting them tends to lower total intake without deliberate restriction. The lever is reducing added-sugar calories that do not make you full, especially from beverages, rather than eliminating sugar entirely.

Q05

What is the difference between total sugar and added sugar on a label?

Total Sugars includes all sugar in the food, both natural (fruit, dairy) and added. Added Sugars, the indented line the FDA has required since 2020, counts only the sugar put in during processing. This is why plain yogurt or a fruit product can show high Total Sugars but zero or low Added Sugars. Read the Added Sugars line and its %DV, which is based on the 50 g/day value, to judge a product.

Q06

Is natural sugar like honey or maple syrup better than white sugar?

Not meaningfully, for the daily limit. Honey, maple syrup, agave, and cane juice all count as added sugar and are metabolized similarly to table sugar, so they count against the 25-50 g target the same way. They carry trace minerals, but in amounts too small to change the calculus. The useful distinction is added versus naturally occurring, not 'natural' versus refined; for how to weigh claims like these, see our method for evaluating a food claim.