Biggest Loser Nutritionist Tip - How many calories do you need?

How many calories do I need? I hear this question all the time - mostly from people who want to lose weight.  Though it's always best to see a registered dietitian, here is a tool I provided in my book Positively Ageless to give you an idea how to calculate your calorie requirements.

KNOW YOUR CALORIE NEEDS

An important step in maintaining long-lasting health is to make sure you don’t eat too much. Not only may minimizing your calories help you live a longer life, but being overweight is linked to cancer, diabetes, heart disease, and a host of other illnesses that are more likely to strike as you get older.

A great way to get an idea of how many calories you need each day is called the Harris Benedict Equation. For most people, it offers a good estimate of daily caloric needs, though it may underestimate your needs if you’re very muscular or overestimate them if you’re very overweight.

1. Multiply your weight in pounds by 4.35.

2. Multiply your height in inches by 4.7.

3. Multiply your age in years by 4.7.

4. Add the numbers you wrote down in Steps 1 and 2, then add another 655. Next, subtract the number you found in Step 3. Write your final answer here:

5. The amount of exercise and other movement you do each day plays a role in how many calories you need. Multiply your number from Step 4 by:

  • 1.2 if you get little to no exercise
  • 1.375 if you get light exercise 1 to 3 days a week
  • 1.55 if you get moderate exercise 3 to 5 days a week
  • 1.725 if you exercise vigorously 6 or 7 days a week
  • 1.9 if you exercise vigorously more than once a day, or you exercise vigorously daily plus have a physical job

Write your final number down here. This is how many calories you should take in each day: And if you’re trying to lose weight, subtract 20 percent from that number. This formula is not a replacement for personal medical advice. Consult your doctor before beginning any weight-loss program.

Cheryl Forberg

Cheryl Forberg

biggest_loser_logoCheryl Forberg, R.D., is one of the few professional chefs in the country who is also a registered dietitian. As nutritionist for NBC's "The Biggest Loser" for 12 seasons, she developed delicious, healthy recipes that help contestants make fundamental lifestyle changes.

A James Beard award-winning recipe developer, Cheryl has contributed to titles in the "Biggest Loser" book series, as well as authored Positively Ageless: A 28-Day Plan for a Younger, Slimmer, Sexier You (Rodale 2008), which showcases her expertise in weight loss and anti-aging nutrition. A graduate of UC Berkeley and a former research dietitian at Cedars Sinai Medical Center in Los Angeles, Cheryl is in demand as a lecturer and teacher, and travels throughout the United States giving nutrition classes and demonstrations.

Her latest book is Flavor First.

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