Lemon juice (frozen, unsweetened, single strength) nutrition facts

One serving of Lemon juice (frozen, unsweetened, single strength) (1 tbsp) has 3.4 calories, which works out to 22 calories per 100 g. That is about 0.2% of a 2,000-calorie day.

Not especially. It has 0.1 g of protein per serving, and protein supplies 9% of its calories. Foods where protein provides 30% or more of calories are generally considered protein-dense.

It is hard to fit into a strict keto diet. One serving has 1 g of net carbs and 91% of its calories come from carbohydrates, while most keto plans cap net carbs at 20–50 g per day.

0.2 mg per serving, which meets the FDA definition of low sodium (140 mg or less).

0.4 g of total sugars per serving. Labels list total sugars, which include natural sugars from fruit and milk as well as any added sugars.