Picture a pretty normal day. A sweet iced coffee on the way to work. A fruit yogurt at lunch. A glass of orange juice with dinner. None of it feels like dessert.
But add it up and the sugar climbs fast. That's why so many people ask how much sugar per day is actually okay. Here's something most people are surprised to learn: the experts don't all use the same number, and they don't all count the same kind of sugar.
Let me break it down so it finally makes sense.
How much sugar per day? The main limits
Here are the limits you'll see most often. They come from four major health groups:
| Source | What it limits | Daily limit |
|---|---|---|
| American Heart Association | Added sugars | Women: about 25 g (6 tsp, 100 calories). Men: about 36 g (9 tsp, 150 calories) |
| World Health Organization | Free sugars | Under 10% of calories. Under 5% (about 25 g, 6 tsp) for extra benefits |
| NHS (UK) | Free sugars | Adults: no more than 30 g (about 7 sugar cubes) |
| Dietary Guidelines for Americans 2025 to 2030 | Added sugars | No amount recommended. No more than 10 g in any one meal |
The older US guidelines (2020 to 2025) set added sugars at under 10% of calories. The newest edition goes further. It says no amount of added sugar is part of a healthy diet, and it suggests keeping any single meal to 10 g or less.
For most people, the numbers point the same way. Somewhere around 25 to 36 g of added sugar a day is a sensible upper limit, and less is better.
Added sugar, free sugar, and natural sugar
This is where it gets interesting. Not all sugar counts toward these limits.
- Added sugars are sugars put into food or drinks by a company, a cook, or you. Think soda, candy, sweet cereals, and the sugar in your coffee.
- Free sugars include added sugars, plus the sugar in honey, syrups, and fruit juice. The WHO and NHS use this term.
- Natural sugars are the ones inside whole fruit, vegetables, and plain milk.
According to the NHS, you don't need to cut down on the natural sugar in milk, fruit, and vegetables. The Dietary Guidelines agree that sugar naturally found in fruit and plain milk isn't added sugar.
Here's the catch with juice. The NHS explains that when fruit is juiced or blended, the sugars are released. So juice and smoothies count as free sugars, even with no sugar added.
Your sugar limit based on calories
The WHO limit depends on how much you eat. Each gram of sugar has 4 calories, so the math is simple:
| Daily calories | WHO under 10% | WHO under 5% |
|---|---|---|
| 1,600 | 40 g | 20 g |
| 2,000 | 50 g | 25 g |
| 2,500 | 63 g | 31 g |
The WHO's own example matches: at 2,000 calories, 10% is 50 g, or about 12 level teaspoons.
Here's how it plays out for two real sets of numbers. I ran both through the Mifflin-St Jeor equation:
- A 40-year-old woman, 170 lb (77 kg), 5 ft 5 in (165 cm), lightly active, needs about 1,980 calories. Her WHO limits are about 50 g (10%) and 25 g (5%). The AHA limit is also 25 g.
- A 40-year-old man, 190 lb (86 kg), 5 ft 10 in (178 cm), moderately active, needs about 2,760 calories. His WHO limits are about 69 g (10%) and 34 g (5%). The AHA limit is 36 g.
Notice how the stricter WHO goal and the AHA limit land close together. That gives you a clear target. Our sugar intake calculator runs this math for your own body. If you want your calorie number first, try our calorie calculator.
How much sugar do people actually eat?
According to the CDC, US adults ate an average of 17 teaspoons of added sugar a day in 2017 to 2018. That's almost three times the AHA limit for women (6 tsp) and nearly double the limit for men (9 tsp).
The CDC says the leading sources are sugar-sweetened drinks, desserts, and sweet snacks. A 2009 American Heart Association statement also named soft drinks and other sugary drinks as the main source of added sugar in American diets.
The NHS gives a vivid example: a can of cola can have as much as 9 cubes of sugar. That's more than the whole daily limit for adults.
Where sugar hides in everyday foods
Some foods are obvious. Others are sneaky. Here are the total sugars in common foods, from USDA data:
| Food | Portion | Total sugars |
|---|---|---|
| Fruit yogurt, low fat | 6 oz (170 g) | 31.7 g |
| Plain yogurt, low fat | 6 oz (170 g) | 12.0 g |
| Chocolate milk, reduced fat | 1 cup (8 fl oz, 237 mL) | 23.9 g |
| Orange juice | 1 cup (8 fl oz, 237 mL) | 20.7 g |
| Granola, homemade | 1 cup | 24.2 g |
| Chocolate hazelnut spread | 2 tbsp | 20 g |
A quick note: labels show total sugar. The plain yogurt's sugar comes from milk, and the NHS says none of that is free sugar. The fruit yogurt has almost 20 g more. The total on the label won't tell you how much of that was added, so check the ingredient list for sugar or syrup.
At coffee shops and smoothie chains
Drinks are where sugar adds up the fastest. These numbers are total sugars from each chain's nutrition info:
- Tropical Smoothie Cafe: a 24 oz (710 mL) Bahama Mama has 112 g of sugar and 520 calories.
- Dutch Bros: a medium Iced Caramelizer has 57 g of sugar and 400 calories.
- Starbucks: a Grande Iced Vanilla Protein Latte has 29 g of sugar. The Grande Iced Sugar-Free Vanilla Protein Latte has 9 g, with the same 29 g of protein.
- Smoothie King: the 20 oz (590 mL) Gladiator GLP-1 Vanilla has 1 g of sugar and 45 g of protein for 220 calories. See our Smoothie King guide.
Some of the sugar in these drinks comes from milk or fruit. But blended fruit counts as free sugar, and one big smoothie can blow past a whole day's limit.
The Starbucks swap is my favorite example. Same drink, same protein, 20 g less sugar.
How to read labels
The NHS offers simple thresholds for total sugars:
- High: more than 22.5 g per 100 g
- Low: 5 g or less per 100 g
The ingredient list helps too. The Dietary Guidelines suggest looking for words with "sugar" or "syrup," or words ending in "-ose." Common names include high-fructose corn syrup, agave syrup, cane sugar, dextrose, sucrose, honey, and molasses.
Ingredients are listed from most to least. If sugar is near the top, the NHS says the food is likely high in free sugars.
Easy ways to cut back on sugar
Here's the good news: you don't need to quit sugar overnight. Small swaps make a real dent. These tips come from the NHS:
- Swap sugary drinks for water, lower-fat milk, or sugar-free drinks.
- Keep juice and smoothies to 150 mL (about 5 oz) a day, and have them with a meal.
- Cut sugar in hot drinks slowly. Use a little less each week until you don't miss it.
- Pick unsweetened cereal and add fruit, like sliced banana or berries.
- Choose canned fruit in juice, not syrup.
What about sweeteners? Experts don't agree here. The NHS lists sweeteners as one option. The WHO says cutting free sugars should be done without non-sugar sweeteners. The 2025 to 2030 US guidelines also suggest limiting them. If you're unsure, a registered dietitian can help you decide.
Water is the simplest swap of all. Our guide on how much water to drink a day can help you build that habit.
If you have diabetes or prediabetes
Your sugar and carb needs may be different from the general limits here. Talk to your doctor or a registered dietitian about a plan that fits you.
What this means for you
Based on what I've seen in the research, you don't need to fear every gram of sugar. Whole fruit, plain milk, and plain yogurt aren't the problem. The target is added and free sugar, and drinks are the biggest lever.
If you only change one thing, make it your drinks. As the examples above show, swapping one sweet coffee or smoothie a day can cut 20 g of sugar or more.
The bottom line
So, how much sugar per day is okay? For most women, aim for no more than about 25 g (6 tsp) of added sugar. For most men, aim for no more than about 36 g (9 tsp). The WHO and NHS land in the same range, and the newest US guidelines say less is better.
You don't need perfection. Start with one swap, check a few labels, and let your taste buds adjust. Get your personal limit with our sugar intake calculator and take it from there.