Calorie Counting Guide: Intake for Muscle & Weight Loss

Determining how many calories you need depends on your fitness goals, whether you are a marathon runner or a weightlifter. Use intake formulas to calculate your needs for muscle gain or sustainable weight loss.

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Calories in a 6-Ounce Glass of Merlot Wine

Alcohol in beverages contains seven calories per gram, compared to nine calories per gram in dietary fat, and four calories per gram in protein and carbohydrates.

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How Many Calories Should a Child Be Eating?

Kids need plenty of calories on a daily basis to grow and develop properly -- but children who eat too many calories, especially those who are inactive, are at risk for childhood obesity. Your child’s individualized calorie needs are based on age, gender and activity level.

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How Many Calories Should Teenagers Eat?

A teenager’s daily calorie needs are highly dependent on his size and activity level. However, general guidelines exist to give you and your teen a good idea of how many calories he should consume each day. Using an online calorie calculator will help you estimate your teen’s individualized calorie needs.

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Minimum Amount of Calories Needed Per Day to Survive

Your body can survive for days without food. Just because you can survive for long periods of time without eating, however, doesn’t mean you should. Fasting comes with some negative -- even serious -- side effects.

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Amount of Calories Needed to Maintain a 155-Pound Male

The total daily calorie requirements for a man to maintain his weight are based on his body weight -- but also on his age, height, activity level and weight-management goals. Using just body weight and activity level is a quick and easy way to estimate daily caloric needs.

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How to Eat 3,000 Calories a Day

Many adults will gain weight eating 3,000 calories per day, which is beneficial, if you’re underweight or trying to increase lean muscle mass. However, active adult men ages 19 to 35 require 3,000 calories daily just to maintain current healthy body weights, according to the Dietary Guidelines for Americans 2010.

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Guidelines for Men's Daily Calorie Intake

Individualized calorie needs for men are highly variable – and based on each man’s current body weight, activity level and weight-management goals. According to the Weight-Control Information Network, 74 percent of U.S. men are classified as overweight or obese.

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