Madeleine Hull
Protein is an essential macronutrient that supports cell structure, immune function, movement, chemical reactions, hormone synthesis, and more. While most people in the U.S. meet or exceed their protein needs, certain groups may require more protein in their diet. Growing children, pregnant or lactating women, older adults, and physically active individuals often have higher protein requirements. Additionally, those on restrictive diets, with eating disorders, or taking weight-loss medications may need to focus on adequate protein intake. This paragraph introduces the topic of 'What groups need more protein in their diet' and highlights the importance of protein for overall health and specific populations' unique needs.
| Characteristics | Values |
|---|---|
| Average sedentary adult | 0.8 grams of protein per kilogram of body weight |
| Adults over 40-50 | 1-1.2 grams of protein per kilogram of body weight |
| Regular exercisers | 1.1-1.5 grams of protein per kilogram of body weight |
| Weightlifters or endurance athletes | 1.2-1.7 grams of protein per kilogram of body weight |
| Pregnant or lactating women | More protein than a typical adult |
| Growing children | More protein than a typical adult |
| Vegetarians | Eggs, beans, peas, lentils, nuts, seeds, soy products |
| Ovo-vegetarians | Eggs |
| Vegans | Beans, peas, lentils, nuts, seeds |
| People on a restrictive diet | May not get enough protein |
| People with an eating disorder | May not get enough protein |
| People taking weight-loss drugs | May not get enough protein |
Explore related products
What You'll Learn
Pregnant or lactating women
While most people in the U.S. meet or exceed their protein requirements, pregnant and lactating women are among the groups that need more protein in their diet. Proteins are important for immune and neurological function and are the building blocks for tissues, muscle, and bones. During pregnancy, protein is needed to support the growth of the foetus. After childbirth, a woman must eat an adequate amount of protein to maintain her own muscle mass while also providing adequate nutrition to the infant through breast milk.
According to the USDA calculator, an active 30-year-old mother who is 5'4" tall and weighs 120 lbs should consume at least 71 grams of protein per day during the first 6 months of breastfeeding, 27 grams more than if she were not breastfeeding. Ohio State University and the World Health Organization recommend around 17 grams of extra protein per day during the first six months of breastfeeding. Some animal studies also show that higher protein diets are related to increased milk volume.
Dr Stephanie Canale, the founder of Lactation Lab, recommends that women of childbearing age should establish, conserve, and replenish their protein stores. She also notes that premature infants require diets that are high in protein and that the amount of protein in breast milk steadily declines as children grow. For example, a mother nursing a 28-week-old premature infant can have almost four times as much protein in her milk as a mother nursing a 2-year-old toddler.
The current Dietary Reference Intakes (DRI) for protein suggest that healthy lactating women (0-6 months postpartum) should consume an Estimated Average Requirement (EAR) of 1.05 g/kg/d. However, some studies have found that the protein requirements for exclusively breastfeeding women (3-6 months postpartum) are around 1.7-1.9 g/kg/d, and 1.52 g/kg/d during late-stage pregnancy (36 weeks gestation).
It is important to note that protein requirements vary depending on weight, age, physical activity level, and individual health. It is recommended to meet protein needs through whole foods rather than supplements, as supplements may contain unwanted additives and lack certain key nutrients. Lean meats, poultry, fish, eggs, tofu, nuts, seeds, legumes, beans, and dairy products are all good sources of protein.
Valter Longo Diet: Eating Less, Living More
You may want to see also
Explore related products
Growing children
Protein is a vital macronutrient for the growth and development of children. It is essential for tissue recovery and repair in the muscles, skin, organs, blood, hair, and nails. Protein also provides key nutrients such as iron, omega 3s, zinc, B vitamins, vitamin D, calcium, and selenium, which are all required for a child's health.
The human body, including that of children, cannot store protein, so it is important that children receive a daily supply of protein from the food they eat. The amount of protein a child needs depends on their age, and for teenagers, their sex also plays a role. Children who do not get enough protein may experience health issues such as fatigue, poor concentration, slowed growth, bone and joint pain, delayed wound healing, and a decreased immune response.
Protein can be found in a wide range of foods, including meat, eggs, fish, beans, pulses, and plant-based alternatives such as tofu, hummus, and soya. Dairy foods are also a good source of protein and should be offered to children around three times a day. It is recommended that children have a variety of protein-rich foods two to three times a day.
While protein is essential for a child's growth and development, too much protein can be harmful. Excessive protein intake can put stress on the liver and kidneys and increase the risk of dehydration. It is, therefore, best to meet dietary protein needs with whole foods rather than supplements.
Bone Broth Diet: What's in the Pot?
You may want to see also
Explore related products
People over 50
To combat sarcopenia, one can build muscle through strength training. Building muscle requires protein, so when aiming to increase muscle mass, the body needs more protein. Increasing dietary protein intake can support muscle repair and growth. The recommended daily protein intake for a sedentary adult is 0.8 grams per kilogram of body weight. However, for those over 50, the recommended intake increases to about 1-1.2 grams per kilogram or 75-90 grams per day for a 165-pound person. This amount can be adjusted based on one's activity level, with higher protein needs for those who exercise regularly or engage in strength training.
It is important to note that the body cannot store protein, so it must be supplied daily from whole foods such as lean meats, poultry, fish, eggs, dairy, beans, nuts, and seeds. Spreading protein consumption throughout the day, with good protein sources at each meal, is recommended. While protein supplements are an option, they should be used cautiously and in consultation with a healthcare professional.
Additionally, older women should ensure they are getting enough leucine, an amino acid found in high quantities in whey and milk, as it has been shown to enhance muscle protein synthesis in women aged 65 to 75. By ensuring adequate protein intake and engaging in strength training, individuals over 50 can maintain their muscle strength and overall health.
Ground Beef on a Soft Diet: Safe or Not?
You may want to see also
Explore related products
Athletes and active people
The human body cannot store protein, so it must be supplied daily from the foods we eat. Most people in the U.S. meet or exceed their protein needs, especially men aged 19-59. However, athletes and active people often require more protein than the average person due to their increased physical activity and calorie requirements.
Protein is essential for repairing and building muscle, and athletes seeking to gain muscle mass and strength typically consume higher amounts of protein than endurance athletes. Research has shown that higher protein intake can lead to significant increases in strength for athletes, with football players experiencing a 22% and 42% increase in strength from squats and bench presses when consuming protein above the recommended level. Additionally, protein can aid in recovery from intense physical activity and improve immune system responses.
For athletes and active individuals, it is recommended to consume 1.1-1.5 grams of protein per kilogram of body weight. For those engaging in regular weight training or training for running or cycling events, the recommendation increases to 1.2-1.7 grams per kilogram. It is important to note that excessive protein intake, more than 2 grams per kilogram of body weight daily, may be unnecessary and could have potential health implications.
To meet their increased protein requirements, athletes and active people should focus on consuming protein-rich whole foods. Lean meats, poultry, fish, eggs, tofu, nuts, seeds, and legumes are excellent sources of protein. It is also beneficial to include dairy products such as milk, yoghurt, and cheese, as they provide additional protein and support muscle recovery.
While protein supplements are available, they should be used as a practical way to ensure adequate protein intake when whole food sources are insufficient. Whey and casein protein supplements are recommended due to their high digestibility and ability to increase muscle protein synthesis.
Bone Broth Basics: Making Beef Broth for Carnivore Diet
You may want to see also
Explore related products
Vegetarians and vegans
It is a common concern that vegetarian and vegan diets may not provide sufficient protein. However, protein deficiency is almost exclusively seen in people suffering from a calorie deficiency. In such cases, the focus should be on increasing overall calorie and nutrient intake, not just protein.
Vegetarians can obtain protein from eggs (ovo-vegetarians), beans, peas, lentils, nuts, seeds, and soy products. Vegans can get protein from plant sources, including soybean products, seitan, beans, lentils, nuts, whole grains like quinoa and amaranth, and hemp seeds.
Research suggests that vegetarian diets supply more than adequate protein and amino acids. However, a small fraction of vegans may be at risk of insufficient protein intake if their diet does not include protein-rich plant foods or alternatives to animal-based proteins. Well-planned vegan diets composed primarily of minimally processed foods are considered beneficial for all life stages, while those including large amounts of ultra-processed plant foods are not recommended.
Athletes, especially bodybuilders, may require a higher proportion of their calories from protein to preserve muscle mass. However, most athletes simply need to increase their overall food intake to meet their protein requirements.
To boost your protein intake, try including a protein-rich ingredient in each meal or snack. For example, you can top your salads with tofu, sprinkle nutritional yeast on popcorn, or pair fresh fruit with nut butter.
Boosting White Blood Cells: Dietary Strategies and Plans
You may want to see also
Frequently asked questions
The amount of protein you need depends on your age, sex, height, weight, physical activity, and overall calorie needs. Generally, active people should consume 0.54–0.9 g of protein per pound of body weight per day. However, most people in the U.S. meet or exceed their protein needs, especially males aged 19-59.
Some symptoms of protein deficiency may include edema, hair loss, brittle nails, muscle weakness, reduced muscle mass, and slower wound healing time.
Good sources of protein include meat, poultry, seafood, eggs, dairy, beans, peas, lentils, nuts, seeds, soy products, and whole grains.
Yes, excessive protein intake can be harmful, especially for those with chronic kidney disease. Additionally, consuming high amounts of red meat has been linked to an increased risk of certain health conditions, including type 2 diabetes, heart disease, and colorectal cancer.
You can ensure you're getting enough protein by including a variety of protein-rich foods in your diet, such as dairy and lean meats, and consulting with a dietitian to determine your specific needs and create a personalized plan.
