How Many Calories in Bread? Nutrition Facts & Macros

One slice of whole wheat bread (33g) contains approximately 83 calories. Per 100g, whole wheat bread has 252 calories. Two slices (for a sandwich) have about 166 calories before any fillings. Bread is calorie-dense compared to most vegetables but provides important fiber and nutrients.

Per 100g, whole wheat bread contains 42.71g of carbohydrates, of which 4.34g is sugar and 6g is fiber. One slice (33g) has about 14.1g of carbs. Bread is a significant carb source — two slices for a sandwich provide about 28g of carbs.

Bread can fit into a weight loss diet with portion control. One slice (83 kcal) is reasonable. Whole wheat is better than white because it has more fiber (6g vs 2.4g per 100g), keeping you fuller longer. The key is limiting to 1-2 slices and choosing whole grain over refined white bread.

Whole wheat: 252 kcal per 100g, 6g fiber, 12.45g protein. White bread: ~265 kcal per 100g, 2.4g fiber, 9g protein. Whole wheat has 2.5x more fiber and more protein. It also has a lower glycemic index, keeping blood sugar more stable. Nutritionally, whole wheat is clearly superior.

Whole wheat bread has 12.45g of protein per 100g — surprisingly high for a grain product. One slice provides about 4.1g of protein. While not a complete protein source on its own (low in lysine), combining bread with cheese, eggs, or legumes creates complete protein.

Yes — wheat bread contains gluten, a protein that gives bread its structure and chewiness. People with celiac disease or gluten sensitivity should avoid wheat bread. Gluten-free bread alternatives exist but typically have different nutritional profiles (often lower in protein, higher in fat).