Calories in Beef, bottom sirloin, tri-tip roast, separable lean and fat, trimmed to 0" fat, select, raw
Calorie is a unit of measurement for energy.
One calorie is formally defined as the amount of energy required to raise one cubic centimeter of water by one degree centigrade. We use kcal (1,000 calories) to measure the amount of energy in food.
Nutrition Facts for 100g
Daily values based in a diet 2,000 kcal
To maintain body functions, an average adult needs 2,000 calories per day. In 100 grams of Beef, bottom sirloin, tri-tip roast, separable lean and fat, trimmed to 0" fat, select, raw you have 157 calories, the 8% of your total daily needs.
The Basal Metabolic Rate is the amount of energy you need while resting in a temperature environment when your digestive system is inactive. In such a state, your energy will be used to maintain your vital organs. The BMR decreases with age and increases with muscle mass.