Dante Carrillo
Protein is an essential part of a healthy diet, as it helps maintain and build body tissues and muscle. While many Americans are obsessed with getting enough protein, the average American diet is relatively high in protein, and most people meet or exceed their protein needs. However, some studies suggest that older people in the United States may not be consuming enough protein, and that plant-based proteins are healthier than animal proteins. This article will explore whether Americans lack protein in their diet and discuss the health implications of protein deficiency or excess.
| Characteristics | Values |
|---|---|
| Do Americans lack protein in their diet? | Most sources suggest that Americans get enough protein, with some even consuming twice the amount of protein they need. However, some studies suggest that older people in the United States may not be consuming sufficient protein. |
| Recommended protein intake | The recommended dietary allowance to prevent deficiency for an average sedentary adult is 0.8 grams per kilogram of body weight. This is equivalent to 60 grams of protein per day for a 165-pound person. |
| Health risks of protein deficiency | Protein deficiency can be a serious health risk and is a common cause of malnutrition in other parts of the world. It can lead to slower wound healing, swelling, and increased risk of certain diseases. |
| Health risks of excessive protein intake | Overloading on protein can mess up the body's macronutrient balance, leading to increased "bad" LDL cholesterol and inflammation in the body. A 2016 study also linked higher animal protein intake with a higher risk of mortality. |
| Benefits of protein | Protein is essential for maintaining and building body tissues and muscle. It can also aid in weight loss, increase satiety, and provide other health benefits such as improved bone health and reduced risk of certain diseases. |
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What You'll Learn
Americans are likely getting enough protein
While there is a common perception that Americans are not getting enough protein, most Americans are likely getting enough protein, if not more than enough. The Dietary Guidelines for Americans, 2020–2025, indicate that men aged 19-59 exceed their protein recommendations, especially from meat, poultry, and eggs. This is also true for athletes, who often get more protein than they need without supplements because their calorie requirements are higher.
Protein should account for 10% to 35% of your calories. For example, if your daily calorie intake is 2,000, you should consume 200-700 calories from protein, or 50-175 grams. The recommended dietary allowance to prevent deficiency for an average sedentary adult is 0.8 grams per kilogram of body weight. For instance, a person weighing 165 pounds (75 kilograms) should consume 60 grams of protein per day. As people age, their protein needs increase to maintain muscle mass and quality of life. For those between the ages of 40 and 50, protein intake should be around 1-1.2 grams per kilogram, or 75-90 grams per day for a 165-pound person. People who exercise regularly have even higher protein requirements, ranging from 1.1-1.5 grams per kilogram.
It is important to note that the amount of protein one needs can vary depending on age, activity level, and overall health. While protein is essential for maintaining and building body tissues and muscle, consuming too much protein may have negative health effects. A 2016 study found that higher animal protein intake was associated with an increased risk of mortality, while plant-based proteins were linked to a lower risk. Additionally, plant-based proteins such as beans, grains, soy, nuts, and seeds are typically lower in saturated fat, high in fiber, and rich in micronutrients.
While Americans may have a protein obsession, it is relatively rare for people in the United States to be protein deficient. In general, if an individual is consuming enough calories, they are likely meeting their protein needs as well. However, older adults may be at a higher risk of not consuming enough protein due to factors such as decreased appetite, lower energy needs, or financial and social difficulties.
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Older Americans may not be getting enough protein
While protein deficiency is rare in the United States, older Americans may not be getting enough of this essential macronutrient. A 2019 study in the Journal of Nutrition, Health & Aging found that up to 46% of older participants did not consume adequate amounts of protein regularly. This is significant, as insufficient protein is a marker of poor diet and health overall.
As people age, their bodies lose muscle mass, and the risk of sarcopenia, or age-related loss of muscle function, increases. This can lead to a significant decrease in muscle strength, making adequate protein intake crucial for maintaining muscle mass and strength as people age.
Older adults may face challenges in obtaining adequate protein due to various factors. These can include a loss of appetite, lower energy needs, financial constraints, and social difficulties. Additionally, older adults may have higher protein requirements due to chronic systemic inflammation or the use of certain medications.
To meet their protein needs, older adults should aim for 15-30 grams of protein at each meal. This can be achieved by including a serving of dairy and a piece of meat the size of a deck of cards at lunch and supper. It is also important to accompany these protein sources with fruits, vegetables, and whole grains. For those who want to explore plant-based options, beans, lentils, nuts, seeds, soy, and whole grains are excellent sources of protein.
Working with a qualified dietitian is recommended for older adults to ensure they are getting enough protein while considering their health history, weight, appetite, current diet, and medications.
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Animal protein vs plant protein
While protein deficiency can be a serious health risk, it is very rare for people in the United States to be protein deficient. In fact, Americans on average get about double the protein they need. Most people, including athletes, can meet their protein needs by including a serving of dairy and a piece of meat the size of a deck of cards at lunch and supper. However, a study of over 130,000 American adults found that higher animal protein intake was linked to a higher risk of mortality, whereas plant-based proteins were linked to a lower risk of mortality.
Animal proteins are considered complete proteins, meaning they contain all nine essential amino acids that the human body cannot produce and must be obtained from food. Examples of animal proteins include whole eggs, salmon, chicken, turkey, and shellfish. However, animal proteins are often high in saturated fat and low in fiber, which can increase the risk of heart disease.
On the other hand, plant proteins are typically incomplete sources of protein, lacking one or more essential amino acids. However, it is possible to get all the essential amino acids from plant proteins by consuming a variety of plant-based foods such as beans, grains, soy, nuts, and seeds. Plant-based proteins are lower in saturated fat and high in fiber and micronutrients like vitamin K and potassium. A review of eight studies found that people who followed a vegan or vegetarian diet were 30% less likely to die from ischemic heart disease than those who ate meat. Additionally, people on plant-based diets have lower levels of type 2 diabetes and are less likely to be overweight.
While Americans generally get enough protein, older adults may not be consuming adequate amounts. A study found that up to 46% of the oldest participants did not consume enough protein regularly, which can be a marker of poor diet and health. Therefore, it is important to ensure that older adults are getting enough protein, whether from animal or plant sources, to maintain their health and independence as they age.
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The risks of too much protein
While protein is an essential element of a healthy diet, it is possible to have too much of it. In fact, Americans on average get about double the protein they need. A high-protein diet can cause a range of health issues, particularly involving the digestive system, blood vessels, and kidneys.
Consuming too much protein can cause intestinal discomfort, dehydration, nausea, fatigue, headaches, and more. It can also lead to chronic health issues such as cardiovascular disease, blood vessel disorders, liver and kidney issues, and seizures. A 2016 study of over 130,000 American adults found that higher animal protein intake was linked to a higher risk of mortality, whereas plant-based protein was linked to a lower risk of mortality.
It is recommended that protein should account for 10% to 35% of your calories. For an average sedentary adult, the recommended dietary allowance to prevent deficiency is 0.8 grams per kilogram of body weight. This may vary depending on age, sex, and physical activity level. For example, adults over the age of 40-50 may require more protein to prevent sarcopenia, or the age-related loss of muscle mass and strength. Similarly, athletes, people with physically demanding jobs, and pregnant or breastfeeding people may require more protein.
If you are concerned that you are consuming too much protein, it is best to consult a doctor or dietitian. They can help monitor your protein intake and create a suitable eating plan. It is important to maintain a well-balanced diet that includes a variety of whole foods, such as fruits, vegetables, and fiber, in addition to protein.
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The benefits of a high-protein diet
While it is generally believed that Americans do not get enough protein in their diet, this is rarely the case. In fact, Americans on average get about double the protein they need. However, older people in the United States are said to be an exception to this trend, with up to 46% of the oldest participants in a study not consuming enough protein regularly.
Protein is an essential element of our diet, and it exists in both animal and plant sources. It is required for the proper growth, development, and overall health of an individual. Here are some benefits of a high-protein diet:
Weight Management
A high-protein diet can help with weight management by decreasing hunger and cravings throughout the day. This is because protein helps you feel full for longer periods. When you cut out carbohydrates, you lose weight quickly because you lose water. Then, with no extra carbs, the body begins burning more fat for fuel, which can lead to ketosis, making it easier to lose weight.
Muscle Gain and Bone Strength
Protein is essential for building and maintaining body tissues and muscle. A high-protein diet can help prevent muscle loss during weight loss. It can also help strengthen your bones and improve bone density, reducing the risk of osteoporosis and bone fractures.
Health Benefits
Protein has many health benefits, including lowering the risk of mortality. A 2016 study found that higher animal protein intake was linked to a higher risk of mortality, while plant-based proteins were linked to a lower risk. Plant-based proteins are also lower in saturated fat, which can increase "bad" LDL cholesterol, and are high in fibre and micronutrients like vitamin K and potassium.
It is important to note that while a high-protein diet has many benefits, consuming too much protein may negatively affect your health. It is generally recommended that adults consume 10% to 35% of their calories from protein.
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Frequently asked questions
Most Americans get plenty of protein, with some sources stating that Americans get about double the protein they need. However, some studies suggest that older people in the United States do not consume enough protein.
Protein deficiency can be a serious health risk, and it is a common cause of malnutrition in other parts of the world. Signs of protein deficiency include swelling, especially in the abdomen, legs, feet, and hands, and cuts and scrapes taking longer to heal.
The recommended dietary allowance to prevent deficiency for an average sedentary adult is 0.8 grams of protein per kilogram of body weight. For those who exercise regularly, the recommended amount increases to 1.1-1.5 grams per kilogram.
