McDonald’s Large Sweet Tea Calories: What You Need to Know
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McDonald’s sweet tea is a popular choice for a cold, refreshing drink, especially in the South. Its calorie content comes almost entirely from the added sugar that gives it its signature sweetness.
Knowing the calories and sugar in a large sweet tea can help you decide if it fits your diet or if you should consider lower-sugar alternatives.
Calories in a McDonald’s Large Sweet Tea
A large McDonald’s sweet tea contains 280 calories and 70 grams of sugar in its 32 oz serving. These calories come almost entirely from the added sugar that sweetens the tea.
Compared to other drinks at McDonald’s, this is quite high: a large Diet Coke has zero calories, and a large unsweetened iced tea also contains no calories. The difference is the sugar added to sweet tea, which provides energy but no nutrients.
The 32 oz (about 950 ml) serving size is roughly four regular cups of tea. This large size has more than double the calories and sugar of the medium size, which contains about 150 calories and 37 grams of sugar. The small size has about 120 calories and 30 grams of sugar.
The 70 grams of sugar in the large sweet tea are roughly 17.5 teaspoons, which is about three times the American Heart Association’s recommended daily limit for added sugar for most adults—around 6 teaspoons for women and 9 teaspoons for men. This means just one drink can take you well past your advised daily sugar intake.
| Size | Calories | Sugar (grams) | Sugar (teaspoons) |
|---|---|---|---|
| Small (16 oz) | 120 | 30 | 7.5 |
| Medium (22 oz) | 150 | 37 | 9.3 |
| Large (32 oz) | 280 | 70 | 17.5 |
| Drink | Added sugar per serving | Servings | Total |
|---|---|---|---|
| Large McDonald’s sweet tea | 70 g | 1 | 70 g |
| Total | 70 g | ||
| Adult daily added sugar limit (average) (25 g) | 280% | ||
Ingredients That Make McDonald’s Sweet Tea High in Sugar
McDonald’s sweet tea uses brewed black tea as its base, which by itself contains no calories or sugar. The high sugar content comes entirely from the added sweetener—high fructose corn syrup.
High fructose corn syrup is a common sweetener in many processed drinks. It is a liquid sugar made from corn starch and has a similar sweetness and calorie content to table sugar. In a large sweet tea, about 17.5 teaspoons of this syrup are added.
This large amount of sugar causes a rapid rise in blood sugar levels after drinking, which can be a concern for people with diabetes or insulin resistance. It also adds many empty calories that contribute to weight gain if not balanced with physical activity.
By contrast, milo’s zero calorie sweet tea uses sucralose as a sweetener, a non-nutritive artificial sweetener that provides sweetness without calories or sugar. Drinks sweetened with sucralose do not raise blood sugar or add calories.
People Who Should Limit or Avoid McDonald’s Large Sweet Tea
People with diabetes or those managing their weight should limit or avoid McDonald’s large sweet tea due to its high sugar content. Each 32 oz serving delivers about 70 grams of sugar, far exceeding the American Heart Association’s daily recommended limit of 25 grams for women and 36 grams for men. Consuming this much sugar at once can cause blood sugar spikes and complicate weight control.
Pregnant individuals should also be cautious because of the caffeine and sugar. A large sweet tea contains caffeine from black tea, roughly 120 mg per serving, which approaches the advised daily maximum of 200 mg in pregnancy. High caffeine intake can affect fetal development and increase the risk of pregnancy complications.
People with heart rhythm issues might want to avoid or limit caffeine as well, since it can trigger palpitations or arrhythmias in sensitive individuals. Checking with a healthcare provider about caffeine limits is wise in this case.
Kidney disease adds another concern. Excess sugar can worsen metabolic health and kidney function over time. Some sweet tea versions may also contain sodium from added ingredients or preparation, which can further strain kidneys. Limiting sugar and sodium helps protect kidney health.
By comparison, a 12 oz can of Diet Coke has about 0 to 1 calorie and no sugar, making it a safer option calorie-wise, though it contains about 46 mg of caffeine. Unsweetened tea at McDonald’s has zero calories and caffeine varies by size but is generally less than in sweet tea.
Caffeine & Sugar Drink GuideKnow exactly how much caffeine, sugar and sodium is in 150+ popular drinks, and set daily limits that fit you.Caffeine and sugar in 150+ drinksDaily limits, smart swaps and a cut-back planDaily caffeine and sugar calculator (Excel)Comparison of McDonald’s Sweet Tea to Other Popular Drinks
McDonald’s offers sweet tea in three sizes: small (16 oz), medium (21 oz), and large (32 oz). Calories and sugar scale up accordingly—from about 140 calories and 35 grams of sugar in the small size to 280 calories and 70 grams of sugar in the large. Each size doubles the sugar content of its smaller counterpart.
Diet Coke at McDonald’s contains virtually no calories or sugar regardless of size, with caffeine ranging from about 46 mg in a 12 oz can to slightly more in larger fountain sizes. Unsweetened iced tea has zero calories and negligible sugar, with caffeine similar to sweet tea but without the added sugar.
| Drink | Size | Calories | Sugar (g) | Caffeine (mg) |
|---|---|---|---|---|
| McDonald’s Sweet Tea | Small (16 oz) | 140 | 35 | 60 |
| McDonald’s Sweet Tea | Medium (21 oz) | 185 | 46 | 80 |
| McDonald’s Sweet Tea | Large (32 oz) | 280 | 70 | 120 |
| Diet Coke | 12 oz can | 0-1 | 0 | 46 |
| Unsweetened Iced Tea | 16 oz | 0 | 0 | 30-50 |
Choosing unsweetened iced tea or Diet Coke reduces calorie and sugar intake dramatically. For those watching sugar, these options keep daily added sugars closer to recommended limits without sacrificing caffeine if desired.
McDonald’s drink menu also includes water, coffee, and milk, all lower in sugar and calories compared to large sweet tea. Opting for these can support better blood sugar control and weight management.
| Drink | Sugar per serving | Servings | Total |
|---|---|---|---|
| Large McDonald’s Sweet Tea | 70 g | 1 | 70 g |
| Medium McDonald’s Sweet Tea | 46 g | 1 | 46 g |
| Small McDonald’s Sweet Tea | 35 g | 1 | 35 g |
| Diet Coke (12 oz) | 0 g | 1 | 0 g |
| Total | 151 g | ||
| Daily added sugar limit for most men (36 g) | 419% | ||
How to Choose and Enjoy McDonald’s Tea Drinks Wisely
Yes, you can ask for half-sweet tea at McDonald’s, though availability varies by location. This option reduces sugar roughly by half, cutting calories and sweetness significantly.
McDonald’s does not offer a sugar-free sweet tea version. If you want to avoid added sugar altogether, you can request unsweetened tea and add your own sugar-free sweetener, which helps control calorie and sugar intake.
Choosing unsweetened tea or black coffee at McDonald’s provides a no-calorie alternative without sugar, making them better choices for those managing blood sugar or weight. Plain water is always a safe option to stay hydrated without added sugars or caffeine.
Making tea at home gives you full control over how much sugar or sweetener goes in. Brew black tea and add a small amount of your preferred sweetener, or enjoy it unsweetened. This approach lets you enjoy tea’s flavor while keeping calories and sugar low.