A lactic acid test is a blood test that measures the level of lactic acid made in the body. Most of it is made by muscle tissue and red blood cells. When the oxygen level in the body is normal, carbohydrate breaks down into water and carbon dioxide.
There are 140 calories in a 1 breadstick serving of Olive Garden Breadsticks. Calorie breakdown: 16% fat, 72% carbs, 12% protein.
My rule of thumb is that a pat of butter is 100 calories and a slice of bread is 100 calories. This is just a ballpark because calories are mostly irrelevant. If you want less calories from bread and butter, eat less.