A typical serving of light beer (1 can or bottle (12 fl oz), 354 g) has about 103 calories. Per 100 g: 29 kcal, 0.2 g protein, 1.6 g carbs, 0 g fat. The same 100 g carries 0.1 g of sugar. The energy comes from a mix of carbs, fat, and protein.
| Serving | Weight | Calories |
|---|---|---|
| 1 can or bottle (12 fl oz) | 354 g | 103 kcal |
| 1 pint (16 fl oz) | 472 g | 137 kcal |
| 100 g | 100 g | 29 kcal |
Light means about 50 calories saved per can, mainly through less alcohol. On the energy-density scale, 29 kcal per 100 g puts light beer at the very low end.

A typical serving (1 can or bottle (12 fl oz), 354 g) has about 103 calories, and 100 g has 29 kcal. Calories scale with weight, so double the portion means double the number.
There are 0.2 g of protein in 100 g of light beer, which works out to about 0.7 g per serving (1 can or bottle). Treat it as an energy source rather than a protein source.
There are 1.6 g of carbohydrate per 100 g of light beer, or about 6 g in 1 can or bottle (354 g).
Every value on this page comes from USDA FoodData Central, entry 168749 (SR Legacy). Serving figures are converted from the per-100-g data, so rounding can shift a total by a calorie or two.
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Nutrition data: USDA FoodData Central, FDC ID 168749 (SR Legacy). Serving calories are computed from the per-100-g values.