How Much Do I Need?

In my last post, I discussed how you should eat to lose and I know the concept may be a bit confusing. The important point is to make better choices for your calories. Calories that are nutrient dense and healthier are the goal. It is also important to exercise and increase your lean muscle tissue through strength training to help change your body composition.
2000 calories to one person can be a completely different picture to another. For an example of how this picture is painted differently, I used one of the many online food and exercise trackers to input various foods to find the calorie value for two different people.
The first person consumes 2024 total calories and consists of:
Breakfast - 1 McDonalds Bacon, Egg & Cheese Biscuit: 440 calories
Lunch - 2 Taco Bell Chicken Gordita Baja: 640 calories
Snacks - 2 Apples: 144 calories
Dinner - 2 slices of Pizza Hut Stuffed Crust Pork Pizza: 800 calories

The second person consumes 2033 calories and consists of:
Breakfast – 1 cup cooked oatmeal, 1 grapefruit, Yoplait yogurt: 358 calories
Snack – 1 whole wheat English muffin, 2 T almond butter, ½ T honey, 1 banana: 441 calories
Lunch –2 slices whole wheat bread, 4 slices of low-salt deli turkey breast, 1 tsp brown mustard, 1 cup of carrots, ½ cup lentils: 433 calories
Snack- 8oz soymilk, soy protein powder, and 1-cup strawberries: 272 calories
Dinner – 4 oz Atlantic wild salmon, 1 cup of brown rice, 2 cups of chopped spinach: 433 calories
Snack – 1 pear: 96 calories

The food choices are on an even scale when it comes to calories, but can you see how BETTER choices equates to MORE food? The second person has more nutrient dense, healthier options. The first person has less food, but more fat, cholesterol and sodium than one would need in a day. When you eat more quality choices that nourish your body and have good sources of fiber, fat, protein and carbohydrates, you will see better results in body composition change. It is important to eat 5-6 meals throughout the day and to balance your meals so that you are not eating too much at one time. One final note is to eat more of your calories in the first half of your day and reduce the calories of your snacks later in the day.

This brings me to how much of the nutrients your body actually needs. As stated in the last post, carbohydrates are the most important nutrient for energy. When you reduce this nutrient, you will start to feel sluggish. The body needs between 45% to 65% of total calories from carbohydrates. The better choices are brown or wild rice, whole grain pasta, sweet potatoes as well as fruits and vegetables. This number is a wide range based on the activity level of an individual. Fiber is part of the carbohydrate family and is essential for maintaining the health of the gastrointestinal tract. The body needs at least 25 grams and the natural fiber is in your fruits, vegetables, whole grains, nuts and beans.

The next nutrient needed in the body is fats or lipids. This is the second source of energy and the body needs between 20% and 35% of total calories in a day. The sources are olive oil, nuts, seeds, fatty fishes (salmon and tuna), and avocado.
Protein should not be thought of as a source of energy. It takes a long process for your body to produce energy from protein, so stick with the carbs and good fats. The body needs between 15% and 20% of total calories and one of its many roles is to build blocks for your muscles. Great sources of protein are beans, legumes, yogurt, cottage cheese, milk, fish, and skinless/boneless poultry. Oh and if you eat really well and make great choices 80-90% of the time, it's okay to have a few Hershey's Kisses every now and then. Just watch your portion!
The online trackers are a great way to see how the foods you eat are broken down into the various nutrients. I named a few in the post dated January 31, 2010 entitled, Track Your Progress. In an upcoming post, I will discuss cholesterol, sodium and sugar.

You Gotta Eat to Lose

I know, I know. You hear it, but you just can’t seem to wrap your mind around the fact that in order to lose inches/weight and improve your body composition, you have to eat. Really??!! Let me explain this as simply as possible.

Most people think deprivation. If I cut calories, usually something like 500 calories a day = 3500 calories in a week, which will allow you to lose 1 pound. While that may be true, it may be short term depending a variety of factors. Factors such as physical activity, the types of foods one eats as part of their regular diet and body fat percentage. These factors vary for each person.

Some people may look at a magazine and determine for themselves that they should be eating between 1600-1800 calories to lose weight. Just check to make sure there is a disclaimer (in fine print) that says this advice should vary by individual. What happens is a 150-pound woman and a 180-pound woman will pick up the same magazine, see the main highlights and miss the fine print (if there is fine print). So do you think a 150-pound woman and 180-pound woman should be consuming the same amount of calories?? The answer is No.

The reason is that food intake has to be customized to be effective. When one is starting to make changes to their meal choices, eliminating processed foods and snacks high in sugar and saturated fats is a great way to start. There should always be a plan and roadmap for substitutions or better options.

Based on various factors, each person has a specific amount of calories they should be consuming to lose inches/weight and keep it off. It starts with knowing how many calories your body needs at the base level of functioning life. This would be the case if you were to sit on the couch each day, not move and need enough energy, (calories) for you to breathe and for your brain, heart and all other major organs to function. This is your Basal Metabolic Rate (BMR). For women, multiply your weight by 11 and men multiply their weight by 12 to get this BMR. The 150-pound woman needs a base level of 1650 calories and the 180-pound woman needs 1980. Remember the magazine article that states you should eat 1600-1800 calories per day?

Let’s move on. There are 3 more custom factors that will affect the total recommended calories needed in a day. They are physical activity, the thermal effect of food and body fat percentage. For example, if the 150-pound woman is active vs. sedentary, eats more nutrient dense carbohydrate foods than high fat foods and has a low body fat percentage, her daily recommendation can be up around 2600 calories. Yes, 2600 calories. If you are very active, you need food to burn to keep your metabolism up. Your metabolism is the chemical process in the body that destroys tissue and releases energy, thereby generating heat. The faster your metabolism, the more calories you burn. Carbohydrates provide less calories per gram of food than fat, therefore, one would need more calories if their daily intake was more carbs than fat. Finally, if someone has a low body fat percentage, their body has more lean muscle and (again) needs more calories to burn to keep the metabolism going.

Can you see how the 150-pound woman can need 2600 calories instead of 1600? 1600 calories would put her in a starvation mode. In starvation mode, the body will look for another form of fuel or energy and start to break down precious muscle tissue to create the fuel it needs. You do NOT want that to happen. I blogged about this issue and the importance of having lean muscle tissue in Dieting Truths, an entry dated July 1, 2008. Please refer back.

When you don’t eat enough calories in your day, that is one reason the body will not change composition and the other is not eating the right type of calories. Carbohydrates are your main source of energy and the more whole grain and nutrient dense the better. So think of sweet potatoes, brown rice, fruits and vegetables. Good fats (olive oil, avocado, and fat from salmon or tuna) are your second source of energy and protein is very last. Protein is last because it takes a lot for your body to process it for energy. In sum, stick with healthy carbohydrates, good fats and lean protein and eat them to lose. In an upcoming post, I will discuss how much of each nutrient you actually need.