Calories etc: How many calories do I need?

If you have a calculator, then you can figure out how many calories you need. Sure, there are dozens of online calculators, but either of the following expert-recommended mathematical equations are super accurate for calculating your calorie needs. One (the Harris-Benedict equation) uses the metric system. Both formulas yield a similar result.

What is Basal Metabolic Rate (BMR)?

The first step for either formula is to calculate your BMR. This is, quite simply, the minimum amount of energy (in calories) you need daily to sustain life. BMR factors in not only your height and weight, but your age. BMR declines every decade beyond age 30, some say up to 10%. This impacts your calorie needs – you need fewer calories daily to maintain your weight as you age. Calculating BMR is only the first step. You need to multiply that number by a physical activity level (PAL), also known as an activity factor. Choose this number based upon your exercise level and lifestyle (active or sedentary job).

Calculations for calories needed

Harris-Benedict Equation:
Men = 66 + (6.3 x weight in lbs) + (12.9 x height in inches) – (6.8 x age in years) = BMR
Women = 655 + (4.35 x weight in lbs) + (4.7 x height in inches) – (6.8 x age in years) = BMR

Mifflin-St. Jeor Equation:
Men = 10 x (weight in kg) + (6.25 x height in centimeters) – (5 x age in years) + 5 = BMR
Women = 10 x (weight in kg) + (6.25 x height in centimeters) – (5 x age in years) – 161 = BMR

The next step is to multiply your BMR by the most suitable physical activity factor (keep in mind that most individuals overestimate their level of physical activity):

Sedentary = BMR x 1.2
Light activity = BMR x 1.375
Moderately active = BMR x 1.55
Very active = BMR x 1.725
Extremely active/Athletic = BMR x 1.9 or more

Using the Harris-Benedict Equation, the BMR for a 40 year-old man, 5’10” and 164 lbs = 1,730 calories
Using the Mifflin St-Jeor formula, the BMR for the same man = 1,661 calories

Calorie intake to lose or gain weight

Now, if you want to gain or lose weight, you need to go a step farther. To lose 1 lb in one week, you need to create a calorie deficit of 3,500 calories. The best way to do this is to decrease your daily caloric intake by 500 calories. You can do this by cutting down on the calories you consume and/or increasing the amount of calories you burn by increasing your exercise intensity, frequency and/or duration. The reverse is true for gaining weight.

Snacks Part 1: Best low calorie snacks

Snacks are no longer considered to be ’bad’ or a diet taboo. These days, as long as you watch your calorie intake and choose wisely, you can graze on small meals and low calorie snacks several times daily and still maintain or even lose weight. So, what is the criteria for ’healthy’ snacks? Keep the following in mind when choosing your snacks:

• Offer between 100 and 200 calories
• Are fat-controlled, providing 0g trans fats and 3g saturated fat or less per serving
• Are relatively low in sodium; strive to limit the sodium in your low calorie snacks to 400mg or less
• Are nutrient-rich: a good food source of protein, dietary fiber and/or key vitamin and minerals (such as iron, vitamins A, C or calcium)
• Offer a little something extra: are available in calorie-controlled portions, contain no high-fructose corn syrup and little added sugar; are gluten- or lactose-free, have added omega-3 fatty acids, etc…

There are low calorie snacks for every craving: sweet, smooth and creamy, crunchy and salty and everything in-between. For part 1, we will concentrate on those that fall under the ‘dairy’ category, such as cheese, milk, puddings, etc. Unless you are lactose intolerant, or have an allergy to milk, there is no reason to avoid dairy products. These snacks are all about convenience – they are widely available and take no preparation time/work.

Snacks Part 1: Dairy – Top 5 low calorie snacks

Cheese snacks

• Cabot 75% reduced-fat sharp cheddar (block) or Laughing Cow mini Babybel light cheese rounds (individually wrapped, comes in small bags). These cheeses offer less fat but lots of flavor without being rubbery. Cheese is rich in both protein and calcium. A 2-oz. serving of the 75% reduced-fat Cabot sharp cheddar (lactose-free) provides 120 calories, 5g fat, 3g saturated fat, 18g protein and 400mg sodium. Two Babybel cheese rounds provide 100 calories, 6g fat, 3g saturated fat, 12g protein and 320mg sodium.

Fermented dairy snacks (yogurt & kefir)

• There aren’t many snacks that compare in texture and flavor to Greek yogurt. Though more expensive than other varieties, the difference is substantial. Choose plain or flavored, non-fat varieties and you’ll stay under 150 calories and take in more protein that you would choosing regular yogurt. If you like a little crunch try YoGreek vanilla + granola. It comes in a 4.6-oz. cup with a little ‘sidecar’ of granola. The snack provides 140 calories, .5g fat, 11g protein, 22g carbohydrates and is a good source of calcium.
• Kefir is a thick dairy beverage (like ‘drinkable’ yogurt) made by fermenting milk with kefir grains (lactic acid bacteria, yeast and polysaccharides). It’s a tangy, slightly effervescent drink that promotes digestive health and supports a healthy immune system. Choose non-fat or low-fat plain or flavored for snacks that are high in protein and  calcium. This fermented dairy beverage also contains magnesium, riboflavin and vitamin B12. One cup of low-fat strawberry kefir provides about 140 calories, 2g fat, 11g protein and 20g carbohydrates.

Sweet snacks

• All Kozy Shack puddings are made with only all natural ingredients. They come in a variety of sizes (including ‘snack’ packs) and many flavors though the original rice pudding was the first and is a favorite. A 1/2 cup serving provides 130 calories, 2.5g fat, 4g protein and 24g carbohydrates. It’s also a good source of calcium and is a treat. They also make ‘no added sugar’ puddings that are sweetened with Splenda and offer only 70 calories per serving.
• Who doesn’t love chocolate milk? It was good for you when you were a child and is still a great choice, especially as a post-workout snack. Obviously regular chocolate milk does have lactose and sugar…to cut back on the sugar try Nesquik ready-to-drink no sugar added reduced-fat chocolate milk (comes in 8-oz. bottles). One serving provides 100 calories, 2g fat, 1.5g saturated fat, 8g protein, 13g carbohydrates and less than 200mg sodium.

Snacks are back in vogue – stay tuned for best low-calorie snacks part 2!

Asparagus nutrition information and benefits

Did you know that the tender spears (of asparagus) were very popular in the royal households of 17th century France? Asparagus was believed to be a powerful aphrodisiac! Well now spring is here and you can enjoy this ‘in season’ fresh vegetable for its many benefits (aside from the above)! If you have tried asparagus and loved it, good for you. If not, perhaps you have eaten asparagus that was prepared incorrectly (under-seasoned and over-cooked), making it mushy and bland. At only four calories per spear, asparagus is a low-calorie vegetable packed with nutrients and disease-fighting compounds.

Asparagus: nutrition information

In addition to being low in calories, asparagus is a great source of the B-vitamin folate and a good source of both vitamins A and C. Five spears provides 20 calories, no fat and 110 micrograms (mcg) of folate, which meets 28% of the recommended Daily Value (DV). Optimal folate intake is crucial for a healthy pregnancy, making new cells and forming neurotransmitters, or chemical messengers in the brain. Folate is also important for reducing your risk of developing heart disease. It controls the amount of homocysteine (an amino acid) in your bloodstream. When folate levels plummet in your system, homocysteine levels increase, causing damage to the delicate arteries which supply brain to your brain and heart. Keep in mind that folate is highly susceptible to destruction through cooking (heat, air, light) so cook your asparagus whole (briefly) and don’t submerge it in water.

Vitamins A and C are antioxidants. They protect cell membranes from damage and promote a healthy immune system. Vitamin A plays a role in the creation of new cells, reproduction, growth and development, promotes healthy eyesight among other functions. Vitamin C is needed to form collagen, a fibrous protein that acts like cement in your body, along with elastin it gives your tissues form and provides firmness and strength. Without these substances, your body would fall apart. One serving of asparagus, or five spears, meets 10% of the DV for vitamin A and 15% for vitamin C.

Asparagus contains a powerful compound which acts like an antioxidant, offering protection against cancer. It is called glutathione (a small protein). Like vitamins A and C, glutathione protects cells against free radical damage which can, at worst, lead to cancerous changes. In fact, in an analysis of nearly 40 green vegetables, fresh cooked asparagus came in #1 for glutathione content.

Selection and storage

Choose odorless asparagus with dry, tight or compact tips (most of the nutrients are in the tips!) versus loose, frayed tips. You can refrigerate fresh asparagus for up to four days. Simply wrap the ends of the stalks in a wet paper towel and placing the asparagus in a plastic bag. When preparing, remove the woody stalk or the point where it naturally ‘snaps’ off toward the bottom of the stalk. If they are very thick stalks, try using a vegetable peeler to remove some of the exterior and make it easier to find the woody part, which you can cut off with a knife.

Preparing flavorful asparagus

Never overcook your asparagus. It is best ‘al dente.’ Try grilling it or cooking it in a pan with a bit of oil (browning the sides). Make a orange-soy dressing or marinade with about 1 TB each of reduced-sodium soy sauce and fresh orange juice, 1/2 tsp each grated fresh ginger, orange rind and sesame oil. Toss it in the mixture before steaming, browning in a pan or grilling. Top with diced shallots, if desired.

Other varieties

When we think of asparagus in the U.S. we typically think of ‘green’ asparagus. White asparagus is not a different variety of asparagus but is grown using a different cultivation technique. It is more popular in Europe and tastes slightly less bitter than its green cousin. Purple asparagus, originally cultivated in Italy, is actaully a different variety and has more sugar and less dietary fiber than green asparagus.

Nutrition Month: Get Your Plate in Shape

National Nutrition Month Tips: ‘Get Your Plate in Shape’ 2012

March is National Nutrition Month. The theme, created by the Academy of Nutrition and Dietetics, for 2012, is to ‘get your plate in shape.’ These days it is all about your ‘plate.’ Take the traditional food guide pyramid for example. It is a part of our nutrition history – a thing of the past, having been replaced by the ‘choose my plate‘ graphic.

So, how can ‘A Perfect Plate’ help you to “get your plate in shape?” Try these National Nutrition Month tips this week. Look forward to more helpful ‘good nutrition‘ suggestions this month!

Devote half of your plate to fruits and vegetables

This is particularly important for your lunch and dinner meals. For optimal health benefits and weight management, choose more vegetables (from all five subgroups: orange, dark green, starchy, beans and ‘other’) than fruits. ChooseMyPlate.gov recommends consuming 2.5 cups of vegetables and 2 cups of fruits on a 2000-calorie diet. Don’t forget bright colors such as red (think red bell peppers) and purple/blue (blueberries and beets). Look for what is in season and/or try frozen produce for quick smoothies and side dishes. For each meal, aim to consume at least one piece of fruit, one serving of vegetables, or both.

Vary your protein choices

Think your only options are beef, pork or chicken? Think again. It could be time to update your plate! You have varied nutrition needs. Therefore, you should choose from a variety of foods every week from the ‘protein’ food group. Options include seafood, legumes (starchy beans and peas), eggs and less common plant-based proteins, such as whole soy foods. Examples include edamame, or whole green soybeans, which can be purchased in the frozen food section for ultimate convenience, and quinoa. Quinoa is an iron-rich, high-quality whole grain which also happens to be a ‘complete’ protein food. Complete proteins contain all of the amino acids, like meats, dairy, poultry and fish. Because fish is generally low in total and saturated fat, make it your protein choice at least twice weekly. How much space should lean protein foods take up on your plate? No more than 1/4 of your plate, roughly 3 to 5 oz.

These tips may be publicized during National Nutrition Month throughout March, but you should aim for ‘optimal nutrition’ year-round.

Vitamin Supplements for Baby Boomers

The oldest ‘Baby boomers’ are now turning 65! Among other major life changes, such as retirement and Medicare enrollment, those aged 60+ years have nutrition needs different from those in their 20s, 30s and even 40s.

Nutrients of Concern

Those aged 65+ are at increased risk for nutrient deficiencies, particularly water (yes, water is an essential nutritient), vitamin 12 and folate; vitamin D, calcium and zinc. As you age, your organ function begins to decline, resulting in an increased risk for developing chronic health conditions, such as high blood pressure. A healthy, nutrient-dense diet is essential. As your body’s own natural antioxidant system becomes less effective, you need to increase your intake of antioxidant vitamins, such as vitamin A (in the form of beta-carotene, vitamin E and C).

General Dietary Supplement Criteria

Among those MVIs marketed toward the ’50+ crowd’ look for options that offer 100% of the RDA or AI (recommendation) for vitamins C, E, B12, B6 and folic acid, as well as for the minerals selenium and magnesium. Many MVIs fall short on magnesium. Look for one that contains at least 100 mg (25 to 33% of your daily requirment). There is evidence that vitamin K may be important  for older Americans, so look for a MVI that offers about 25 mcg (except if you take Coumadin or another blood thinning medication). Vitamin K interferes with blood-thinning medications. The nutrients mentioned above are especially important for bone health, heart health and energy metabolism.

Potassium and Other Minerals

Choosing foods rich in potassium, such as many fruits and vegetables, is important because potassium (along with calcium and magnesium) may reduce blood pressure and potassium is a major mineral, needed in large quantities. While widely found in the food supply, it is the #1 nutrient deficiency in the U.S. Vitamins and minerals are best absorbed and used by your body when obtained from whole foods. However, if you wish to take a multi-vitamin/mineral (MVI) supplement, choose wisely.

Vitamin D and Calcium

In most cases, you shouldn’t rely on your MVI dietary supplement to meet your needs for calcium and vitamin D. There isn’t enough room in the pill itself for the calcium required for most Americans. Choose a calcium + vitamin D supplement and take it separate from a multi-vitamin. The recommended dosage is at least 1,000 mg calcium and 400 I.U. vitamin D but most research has indicated that the vitamin D recommendation may be too low, especially if you do not get adequate sun (UVB) exposure; about 15 minutes per day of direct sunlight.

Vitamin A and Iron

Vitamin A intakes in the elderly are generally below the current standard of 800 – 1,000μg per day. Despite these low intakes, liver stores of vitamin A are well preserved with advancing age so supplementation would be more detrimental in elderly persons than in younger persons because of a diminished ability to clear this vitamin from the body, leading to potential toxicity (hypervitaminosis A). Nowadays, the majority of the vitamin A in most MVIs is in the form of beta-carotene (about 75% of the vitamin A), a vitamin A precursor found in abundance in your orange and dark green veggies and some fruits. In addition, MVIs designed for this age typically contain little or no iron as this mineral can be stored in the liver. Iron overload is known clincally as hemochromatosis.