Tag Archives: nutrition

Know your nutrients: Protein

For the last two weeks, I have written about carbohydrates and fats. This week in my Health & Fitness column in the Aiken Standard I am covering protein, another essential macronutrient in your diet.

Protein-rich_Foods


Protein is part of all cells and is the main component of muscles. Proteins are made up of building blocks called amino acids. The human body requires 20 amino acids for the synthesis of its proteins. Your body can produce some of these amino acids, so they are called non-essential because you do not need to get them from your diet. There are nine essential amino acids that cannot be made by the body and are obtained only from food. If the protein in a food supplies enough of the essential amino acids, it is called a complete protein. An incomplete protein is one that does not supply all the essential amino acids.

All meat and other animal products are sources of complete proteins. These include beef, lamb, pork, poultry, fish, shellfish, eggs, milk, and milk products. Protein in plant foods (such as grains, legumes, nuts, fruits, and vegetables) are either low in or lack one or more of the essential amino acids. These food sources are considered incomplete proteins. One exception is soy protein, which contains all of the essential amino acids.

Plant proteins can be combined to form a complete protein. This is called complementing. Examples of complementing plant proteins are food combinations such as rice with beans or black-eyed peas, beans with corn or wheat tortillas, and hummus, which combines chick peas with sesame paste. Since plant sources of protein are lower in fat and higher in fiber than meat, there are health benefits from getting more protein from plants.

A diet low in protein could lead to poor growth in children or result in muscle loss. For this reason, many people, especially athletes, are concerned about their protein intake. The typical diet for most people contains more than enough protein, so this concern is often unwarranted. People who follow vegetarian or vegan diets do need to pay extra attention to their protein intake. This is especially true for vegetarian athletes.

The amount of recommended daily protein depends on age, medical conditions, and activity level. The recommended intake for protein is 0.8 g protein per kg of body weight (or about 0.4 g protein per pound), so a 200 lb. person would require about 80 g protein per day. In general, two to three servings of protein-rich food will meet the daily needs of most adults. For example, four ounces of meat contains about 40 g protein, one cup of cooked beans contains about 15 g protein, and two slices of whole wheat bread have about 6 g protein.

Protein needs are higher for children, pregnant women, and athletes. That said, the average American’s protein intake is sufficient for most of these special situations. While athletes who are training to add muscle require much more protein than the typical adult, the average intake of most athletes is sufficient to meet these needs. In cases when it is not, the recommendation is to get extra protein from food, not supplements.

Since you probably get enough protein in your diet already, you should focus on healthier sources of protein. Select lean meat, poultry without skin, fish, lentils, and legumes often. Also try adding soy protein to your diet by eating tofu, soy milk, and soy beans (edamame) since soy protein contains beneficial compounds called phytochemicals. As always, you should get your protein by eating naturally protein-rich foods rather than through supplements or processed foods with added protein.


 

Know your nutrients: Carbohydrates

Nutrition and healthy eating are common themes in my writing, so it seems appropriate to provide more information about the major nutrients in our diets: carbohydrates, fats, and protein. These nutrients provide nearly all of the calories we eat and have a large impact on our health. Given the importance of these nutrients, there tends to be much confusion about the different forms they come in and how much of each we should eat. Carbohydrates are the topic of my Health & Fitness column in the Aiken Standard this week.


Starchy-foods

Carbohydrates are an important energy source in your diet. All carbohydrates contain four calories per gram. Grains, fruits, and vegetables are good sources of carbohydrates. Carbohydrates include starches, naturally occurring and added sugars, and fiber.

Carbohydrates are produced as a result of photosynthesis in plants and are stored as complex carbohydrates or starches in grains and many vegetables and as simple sugars in other vegetables and fruits. When you eat carbohydrates, your body breaks down the starches and converts the sugars to glucose, or blood sugar, which is used for energy.

The extent to which a food affects blood glucose is called the glycemic index, or GI. Refined carbohydrates, like white rice, pasta, and flour, and sugars typically have a high glycemic index, meaning they cause spikes in blood glucose. Whole grains, like whole wheat, whole oats, and brown rice, have more of a “low and slow” effect on blood glucose. This can help with blood glucose control and may affect appetite.

For these reasons, low GI foods like complex carbohydrates from whole grains are called “good carbs,” in contrast to high GI refined grains and sugars, known as “bad carbs.” In reality, the glycemic index can provide a guide for selecting carbohydrates in the diet, but is no guarantee you are making healthy choices.

Carbohydrates also include fiber, the nondigestible portion of plants. Whole grains, fruits, and vegetables are rich sources of fiber while refined grains and sugars contain little, if any, fiber. Fiber comes in two forms, soluble and non-soluble. Non-soluble fiber, also called roughage, promotes good digestive health. Soluble fiber, like that found in oats, may help lower blood cholesterol. Studies show that diets higher in fiber tend to promote weight loss over time.

You should make an effort to reduce your intake of sugars, especially added sugars, in your diet. Even though all sugars have the same number of calories, foods and beverages containing added sugars should be avoided. Look for “corn syrup” and “high fructose corn syrup” on the label to identify added sugars. You may be surprised how much added sugar you consume! Fruits or 100% fruit juices are a healthy choice since they are rich in vitamins and minerals, even though they contain sugar.

Carbohydrates can be a major part of your diet. Current recommendations call for 45–65% of your daily calories to come from carbohydrates, so a person who eats 2000 calories per day should consume about 300 grams of carbohydrate. Sugars should be limited to less than 10% of calories, so the majority should be complex carbohydrates.

You can meet this goal by reducing your intake of sugars, especially added sugars, and refined grains while increasing your consumption of whole grains, fruits, and vegetables that are high in fiber. When comparing food labels, look for foods that contain whole grains (the first ingredient should be something like “whole wheat flour”) and higher levels of fiber. But be aware that some foods, like many breakfast cereals, contain whole grains but are also high in added sugar.

The best advice is to get the majority of your carbohydrates from real food, including vegetables, fruits, whole grains, and legumes, rather than from processed foods.


Invest in your health

Making smart investments that pay off over time is a key to creating wealth and sustaining financial wellbeing as we age. Warren Buffett is widely regarded as a successful investor and financial leader. His careful investment strategies have allowed him to amass an impressive personal fortune and lead to him be considered one of the foremost experts on investing.

For these reasons, Buffett’s business and financial advice is respected and followed by many people to achieve wealth and financial security. This same strategy can be applied to health with the same good results. Here is how following Buffett’s investing strategy can help you achieve good health now and maintain it long into the future. Just like saving for retirement, you will be glad you have plenty of good health in the bank when you get older.

This is the topic of my Health & Fitness column in the Aiken Standard this week. Since I am not an expert in the world of finance and investing, I did run this by a colleague from the School of Business to make sure I was on the right track!

couple jogging on beach


Make smart, not popular, choices.  Many of Buffett’s investments have been in industries or companies that others have overlooked in favor of more trendy options. However popular, these investments may not be smart choices in the long run. Similarly, new exercise trends and popular dietary supplements may seem appealing for weight loss, but the results are often disappointing. Sometimes the best approach for health is something much less exciting: making smart diet choices and daily exercise will almost always pay off for years to come.

Plan for the long-term success, not quick results.  Investments promising that you will get rich overnight are appealing. While you may make money initially, in the long run you may not have anything to show for it or you may end up losing money. Many fad diets and exercise trends are the health equivalent of get rich quick schemes. For example, they may promote weight loss right away, but fall short when it comes to keeping the weight off. Some popular high-intensity training programs can lead to rapid increases in fitness and strength. But for some people they can lead to injury or, at the very least, a negative experience that may turn them off from exercise in the future. Just as Warren Buffett makes investment decisions that will promote long-term income, you should make diet and exercise choices that will pay off for years to come. Even though the health “income” may accumulate more slowly, it is more likely to be lasting.

Diversify your investments.  Buffett’s strategy has been to invest in multiple industries. This allows him to maximize income and insulates his portfolio from losses in any one area. Similarly, you should diversify your health investments. Instead of focusing only on your diet or just on exercise, include both diet and exercise in your health portfolio. That way you will get the benefits of both treatments and maximize your return on investment. This works because the health benefits of good nutrition and physical activity are additive. In fact, in some cases the activity is essential for the diet to be effective, and vice versa.

Your goal should be to make smart investments in your health by choosing diet and activity strategies that you can live with and that will pay off long into the future. Applying Warren Buffett’s investment strategies can help guide you toward making these prudent decisions.

But a healthy, happy life involves more than good nutrition and exercise. You need to take time for yourself and do things you enjoy. Fortunately, there is another Buffett we can take inspiration from: Jimmy Buffett. Sometimes, escaping to Margaritaville is just what the doctor ordered!


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From farm to table at your local farmer’s market

Today marks the beginning of National Farmer’s Market Week, a celebration of the benefits local markets have on our communities. From supporting local farmers to improving access to nutritious food, farmer’s markets  and local farm stands can have positive effects on the environment, economy, and health. In fact, the availability of farmer’s markets is one of the criteria used in the American Fitness Index, an annual ranking of the fittest cities in the United States. Let’s explore some reasons why shopping at a farmer’s market makes good sense. This is the topic of my Health & Fitness column in the Aiken Standard this week.

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Summer gains and losses: Maintaining good health and academic success over summer vacation.

Summer vacation is a rite of passage for children. Long summer days to play, go to camp, and relax are an important part of growing up. But many educators and health professionals are concerned about what gets lost, and what gets gained, when kids are away from school. This is especially true in a year when most kids missed part of the school year due to the coronavirus pandemic. And it’s the topic of my Health & Fitness column in the Aiken Standard this week.

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Summer learning loss is a real concern. It is estimated that children lose, on average, two months of reading skills and one month of overall learning over summer break. Those losses must be made up when school starts again in the fall, so teachers spend about six weeks re-teaching material that was covered in the previous grade. That is six weeks that children are not learning at grade level, which certainly has an impact on achievement over time.

Not all kids are affected equally. Much of the disparity in summer learning losses falls along socioeconomic lines. Some children have more opportunities than others to continue learning over the summer through formal educational programs and camps and informal encouragement to read.

To address this issue, many institutions implement summer “school” through classes, on-line learning programs, and encouraging reading at home. Some target the students who need them the most while other programs are instituted for all children. In fact, all three of my kids completed online learning programs last summer.

Learning losses are not the only concern with an extended break from school. Many children gain more weight over the summer than during the rest of the year. Furthermore, fitness gains made during the school year are frequently lost over the summer.

While poor nutrition and a lack of activity in schools is a real concern, many children get more exercise and eat better at school than they do at home. Being at home over the summer can lead to poor eating habits—too much unhealthy food or not enough food in general—and lack of chances to be active.

This is important because the combination of poor nutrition, physical inactivity, and obesity has physical, psychological, and social consequences for children that frequently persist into adulthood. Overweight and obese children, especially those who are inactive, are at increased risk for type 2 diabetes, high blood pressure, heart disease, and even stroke – conditions usually associated with adulthood.

Even if an overweight child does not have these conditions now, he or she is likely on that path. In fact, many experts predict that children born today will be the first generation in history to have a shorter lifespan than their parents due to obesity-related diseases that begin in childhood.

Children who are overweight are also more likely to suffer other consequences including lower self-esteem, social functioning, and academic performance. Overweight children are also less likely to play sports or participate in other forms of physical activity, which creates a cycle leading to poorer health and, potentially, poorer academic success.

Now that school is almost out for the summer, this is a critical time of year to focus on good nutrition, physical activity, and continued reading and learning to help prevent a summertime slump in health and academics.

Schools can only do so much, so adults should model good diet, activity, and reading behaviors themselves. A good place to start is by turning off the TV and reading a book or going outside to play. It’s something all of us—adults and children—will benefit from.


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Be thankful for family, friends, and food— real food—this Thanksgiving​.

This is Thanksgiving week, and people throughout the country are planning a feast that includes traditional dishes and family favorites. Even though many of these are not the healthiest choices, they make an appearance on the table each year. For many, Thanksgiving dinner is a day marked by overindulgence and poor nutrition choices.

In an effort to make Thanksgiving dinner healthier, recommendations for modifying or replacing traditional dishes are a common theme in magazines, on the morning TV shows, and on the web. While these suggestions are meant to be helpful, I’m not sure they actually serve to make a significant impact on health. In fact, the foods we eat and the way we eat them may be the healthiest part of a traditional Thanksgiving dinner. This is the topic of my Health & Fitness column in the Aiken Standard this week.


Photo by Craig Adderley from Pexels

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Fight the flu with your feet!

It’s time to get a flu shot if you haven’t already. Getting vaccinated is the most important thing you can do to prevent seasonal influenza (flu). But did you know that regular exercise is important for a healthy immune system and can make your flu shot more effective? This is the topic of my Health & Fitness column in the Aiken Standard this week.

Flu vaccine


Exercise can have a positive effect on your immune system. People who participate in moderate exercise on a daily basis have fewer and less severe colds and have up to 50% fewer sick days than those who aren’t regularly active. Research in animals and humans shows that exercise increases the activity of certain immune cells called helper T cells. This makes the immune system response to viruses, like the cold and flu, more robust. The strongest evidence is seen when the exercise is moderate in intensity and duration, such as a 30–60 minute walk or jog.

More exercise isn’t always better, though. Very vigorous and prolonged exercise can have the opposite effect. Athletes who engage in long, intense training tend to be more susceptible to upper respiratory infections. Research shows that immune function is depressed in the weeks leading up to and after running a marathon, leading to an increased risk of becoming sick. The bottom line is that regular exercise improves your immune system, but very vigorous exercise may not.

Regular exercise also enhances the immune system response to the influenza vaccine. This means that the flu vaccine can be more effective in people who exercise. If you don’t exercise already, you can still benefit: One study showed that a single 45 minute exercise session can improve the immune response to the flu vaccine. You can get this benefit by going for a brisk walk before your flu shot.

There are other steps you can take to reduce your chance of getting sick this cold and flu season beyond getting a flu shot and regular exercise. You should avoid close contact with people who are sick since the flu can be spread through the air when an infected person coughs or sneezes. You can also protect yourself by not touching your eyes, nose, or mouth and by washing your hands frequently with soap and water or using an alcohol-based hand sanitizer.

Good nutrition is also important for optimal immune system function. Deficiencies of certain nutrients can have a negative effect on immune function, so eating a balanced diet is essential. That said, there is no support for “boosting” the immune system by taking high doses of vitamins, minerals, or other supplements, despite the claims made by supplement companies. In fact, the majority of nutritional supplements have not undergone appropriate testing and for those supplements that have been tested, the results are not consistent with the claims.

Poor sleep habits are associated with suppressed immunity and more frequent illness. Sleep deprivation can also reduce the positive immune response to a flu shot. High levels of stress increase susceptibility to colds and the flu and can lead to more sick days from work or school. Stress and poor sleep habits tend to occur together, creating a double negative effect on the immune system.

In order to have your best chance of staying healthy this year you should exercise every day, eat a healthy diet, manage your stress, and get enough sleep. Additionally, follow the traditional advice to get a flu shot, wash your hands frequently, stay away from people who are sick, and stay home yourself if you are ill.


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Juice is good, but eating whole fruits and vegetables is even better!

Nutrition information is often confusing and conflicting, making healthy food choices a challenge. Fortunately, there are some recommendations that are consistent. Among these is eating more fruit and vegetables. Depending on how you consume these foods, you may be missing some of the nutrients that make them so healthy.

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How to stay healthy at work.

Many people are trying to create a healthier lifestyle by eating healthier, making time for exercise or other activity, and reducing stress. Frequently, the focus is on what they can do at home, from prepping meals to joining a gym or going to yoga class. But many people spend a major part of their day at work, where healthy options are often limited. From the box of donuts at a morning meeting to a quick fast food lunch, eating well at work can be difficult. And for people who have office jobs, it also likely means lots of time sitting at a desk.

Fortunately, there are things you can do to make your time at work a little less damaging to your health. Even better, these steps can also make you more productive and feel better throughout the day.

Parr at desk 2-11-16

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From farm to table at your local farmer’s market

Today marks the beginning of National Farmer’s Market Week, a celebration of the benefits local markets have on our communities. From supporting local farmers to improving access to nutritious food, farmer’s markets can have positive effects on the environment, economy, and health. In fact, the availability of farmer’s markets is one of the criteria used in the American Fitness Index, an annual ranking of the fittest cities in the United States. Let’s explore some reasons why shopping at a farmer’s market makes good sense. This is the topic of my Health & Fitness column in the Aiken Standard this week.

farmers market

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