Most people would like to ask questions about calorie measurements, such as what’s the number of calories in a pound of body fat? It’s 3,500 calories. A calorie is defined as a unit of energy. First described in the 1800s, a calorie is technically the amount of heat needed to raise the temperature of 1 gram of water by 1 degree Celsius. You can also check out the site, “Everything you ever wanted to know about calories (but were afraid to ask.” That article uses a mathematical approach, for example:
A average, healthy men should take on roughly 2,500 calories per day, while the figure for the average woman is closer to 2,000. But of course, marathon runners and Navy Seals eat a lot more calories because they expend a lot of energy.
Checking your Basal Metabolic Rate (BMR) to see how many calories you may need
One way to look at calories is to check your Basal Metabolic Rate (BMR), which takes into account weight, height and age to provide the exact number of calories an individual would need for the body to function at rest. The BMR represents about two thirds of the total number of calories needed per day, with the remainder then going towards physical activities, such as walking to work or running for the bus.
The article shows you how to mathematically work out your BMR. It reports that “there are a number of different ways to work out a BMR, with some dating back almost 100 years. ” The formula given in that article is a validated one known as the Harris Benedict model which for adult men is: 66 + (6.3 x body weight [lbs]) + (12.9 x height [inches]) – (6.8 x age). But women use a similar setup with amended figures: 655 + (4.3 x weight [lbs]) + (4.7 x height [inches]) – (4.7 x age). According to that article, “Everything you ever wanted to know about calories (but were afraid to ask,” the result should give an accurate idea of the minimum number of calories each person’s body would need to function fully at rest.
In nutrition, a calorie is the potential energy in food and the amount of energy the body uses, according to the American Dietetic Association’s Complete Food and Nutrition Guide. See the American Dietetic Association complete food and nutrition guide. How many calories you need or what the measure of food energy you need is based on your individual height, weight, activity level, age and metabolism as well as your genetic expression.
A calorie comes from food which is made up of carbohydrates, fats and proteins
Water, vitamins and minerals are all calorie-free. As your body digests what you eat, the nutrients are released, absorbed into the bloodstream and converted to glucose, or blood sugar. Calories power the body.
Energy from calories and the mitochondria of each of your cells are where you get your energy from to breathe, exercise, or work. What food you’re not using right away as energy is stored as body fat. It doesn’t matter where the excessive calories come from. They’re stored as fat, whether the calories come from protein, carbohydrates, dairy products, or oils.
That means excess carbohydrates are no more fattening than additional calories from any source, including fats and proteins. How you actually lose weight is to burn more calories than you eat. Sometimes it’s not about what you eat but how much when you eat. If you eat and go to sleep, the calories won’t be burned as fast as if you eat and walk for an hour.
If you eat in the morning, your biorhythms will be different than if you’re eating late at night due to your individual circadian rhythms
So if you eat a very fatty meal late and night, when you wake up in the morning, you’re going to feel worse than if you ate that meal early in the morning and then walked for a few hours. If you’re watching your weight, then treat calories as if calories were your budget plan. It’s a good idea to tell the family that the kitchen closes by 7:00 p.m.
Don’t spend more than you can manage. You can budget calories. If you go beyond your budget of calories, you’ll gain weight.
Kids eat fewer calories when parents choose lower-calorie options
Children eat fewer calories when their parents choose lower-calorie options for their children at fast-food restaurants but only when nutritional information is available on the menu, U.S. researchers have found, according to the January 25, 2010 HealthNews article, “Parents choose fewer calories for kids’ meals when calories listed.”
Scientists at the other side of the USA, in Boston, MA, are looking at topics such as what happens if you eat too little in the day followed by out-of-control hunger at night and the resulting overeating binge. Check out the site, for example of the Energy Metabolism Laboratory at Tufts University’s Jean Mayer USDA Human Nutrition Research Center on Aging. If you’re on a diet, even though most diets don’t work, what does work is self-pacing of how many calories you eat.
What are too many calories for sedentary women?
Although many standard diets give values for a diet of 2,000 to 3,000 calories, this may be too many calories for sedentary women who sit most of the day in offices. Maybe you need more like 1,400 calories daily. If you’re gaining weight, you’re probably eating too many calories.
On the other hand, calorie-restricted but nutrient rich diets increase the life span of animals in various studies. The range of calories per day that maintains body weight in most people. Bigger or more active people need more. Smaller, more sedentary people need fewer calories.
Dietetics and didactics don’t equal diuretics
At University of California, Davis, near Sacramento, Dietetics is at the center of many overlapping domains of knowledge,” says Dr. Francene Steinberg, Associate Professor of Nutrition, according to the UC Davis Dept. of Nutrition site. With assistance from Nancy Hudson, Dr. Steinberg directs the Didactic Program in Dietetics, which forms the core of the Clinical Nutrition course work.
The program, fully accredited by the Commission on Accreditation for Dietetics Education, is the first step toward becoming a Registered Dietitian, and covers nutrition science, food science, medical nutrition therapy, human physiology, public health and wellness, business and food service management, the social sciences and general education courses. Future dietitians at Davis are taught by the country’s best nutrition scientists. “We place great emphasis on rigorous science courses,” Dr. Steinberg says. “It´s a definite benefit of studying here.”
What the ADA Says About Food
The American Dietetic Association has published a Complete Food and Nutrition Guide. It’s a guide based on a lifetime of sound and easy advice on healthy eating from the world’s foremost authority on food and nutrition. The choices you make every day about food, nutrition, and health can have a major impact on your life.
To find the most reliable nutrition information and positive advice for achieving optimal health, look no further–this comprehensive book from the American Dietetic Association explains everything you need to know about eating for health. It’s packed with simple, practical tips and flexible guidelines to help you choose nutritious, flavorful, and convenient foods that suit your needs and lifestyle no matter what your age or stage of life.
Latest Nutrition Research Emphasis is on Food, Health and Aging
The mission of the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University (HNRCA) is to explore the relationship between nutrition, aging and health by determining the nutrient requirements that are necessary to promote health and well-being for older adults and examining the degenerative conditions associated with aging. For consumers, a good nutrition site is the USDA’s links on food information, which are free to read.
The USDA has a website with excellent tips on nutrition that doesn’t cost you a dime to read. Partnering with My Pyramid provides an opportunity for different communities and different organizations to join together in helping promote the Dietary Guidelines for Americans. My Food-a-Pedia is a USDA site that answers your questions like an encyclopedia of nutrition. You can check out this site to get quick access to food information.
Find the calories and My Pyramid food groups for a food, or compare two foods. Also check out some of the USDA nutrition information sites such as the following: “Make half your grains whole,” Vary your veggies,” “Focus on fruit,” “Get your calcium rich foods,” “Go lean with protein,” “Find your balance between food and physical activity,” and “Keep food safe to eat.”