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The Harris–Benedict equation (also called the Harris-Benedict principle) is a method used to estimate an individual's basal metabolic rate (BMR).. The estimated BMR value may be multiplied by a number that corresponds to the individual's activity level; the resulting number is the approximate daily kilocalorie intake to maintain current body weight.
Basal metabolic rate (BMR) is the rate of energy expenditure per unit time by endothermic animals at rest. [1] It is reported in energy units per unit time ranging from watt (joule/second) to ml O 2 /min or joule per hour per kg body mass J/(h·kg).
The equation that is recommended to estimate BMR by the US Academy of Nutrition and Dietetics is the Mifflin-St. Jeor equation. [3] The equations for estimating BMR in kJ/day (kilojoules per day) from body mass (kg) are: [4] Men:
Achieving weight loss in cats and dogs is challenging, and failure to lose weight is common. [17] If the animals themselves cannot control their own calorie intake, it is recommended that pet owners control the food amount given. Guidelines exist on energy allowances for animals of a given body weight. [18] Medical treatments have been ...
From 40% to 80% of adult body weight, energy requirements decrease to 1.6 times the adult requirement, and from 80% to the end of growth, this decreases further to 1.2 times the adult energy requirement. [7] Because of this, it is important to ensure that puppy diets contain higher amounts of energy than adult dog foods.
A high protein diet relative to a low-fat or high-carbohydrate diet may increase thermogenesis and decrease appetite leading to weight reduction, [53] particularly 3-6 months into a diet when rapid weight loss is observed. [54] However, these advantages may be reduced later at 12–24 months into a diet during the slow weight loss phase. [54]
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