When it comes to making protein choices to keep your body and mind healthy, quality is just as important as quantity. Here’s all you need to know.
What is protein?
Protein provides energy and supports your mood and cognitive function. It’s a vital nutrient required for building, maintaining, and repairing tissues, cells, and organs throughout the body. While it’s in many of the foods that we eat every day, for something so common it’s often a misunderstood part of our diets.
When you eat protein, it is broken down into the 20 amino acids that are the body’s basic building blocks for growth and energy. The amino acid tryptophan influences mood by producing serotonin, which can reduce symptoms of depression and anxiety and improve overall cognitive function.
Most animal sources of protein, such as meat, poultry, fish, eggs, and dairy, deliver all the amino acids your body needs, while plant-based protein sources such as grains, beans, vegetables, and nuts often lack one or more of the essential amino acids. However, that doesn’t mean you have to eat animal products to get the right amino acids. By eating a variety of plant-based sources of protein each day you can ensure your body gets all the essential amino acids it needs.
The health benefits of protein
Protein gives you the energy to get up and go—and keep going. While too much protein can be harmful to people with kidney disease, diabetes, and some other conditions, eating the right amount of high-quality protein:
Keeps your immune system functioning properly, maintains heart health and your respiratory system, and speeds recovery after exercise
Is vital to the growth and development of children and for maintaining health in your senior years
Can help reduce your risk for diabetes and cardiovascular disease
Can help you think clearly and may improve recall
Can improve your mood and boost your resistance to stress, anxiety, and depression
May help you maintain a healthy weight by curbing appetite, making you feel full longer, and fueling you with extra energy for exercising.
As well as being imperative to feeling healthy and energetic, protein is also important to the way you look. Eating high-quality protein can help you maintain healthy skin, nails, and hair, build muscle, and maintain lean body mass while dieting.
While most people eating a Western diet get sufficient quantity of protein each day, many of us are not getting the quality of protein we need.
High-quality vs. low-quality protein
Distinguishing between industrially raised meat and organic, grass-fed meat is only part of separating low- and high-quality sources of protein.
While some processed or lunch meats, for example, can be a good source of protein, many are loaded with salt, which can cause high blood pressure and lead to other health problems.
Processed meats have also been linked with an increased risk of cancer, likely due to the substances used in the processing of the meat.
The key to ensuring you eat sufficient high-quality protein is to include different types in your diet, rather than relying on just red or processed meat.
Good sources of high-quality protein
Fish. Most seafood is high in protein and low in saturated fat. Fish such as salmon, trout, sardines, anchovies, sablefish (black cod), and herring are also high in omega-3 fatty acids. Experts recommend eating seafood at least twice a week.
Poultry. Removing the skin from chicken and turkey can substantially reduce the saturated fat. In the U.S., non-organic poultry may also contain antibiotics and been raised on GMO feed grown with pesticides, so opt for organic and free-range if possible.
Dairy products. Products such as skim milk, cheese, and yoghurt offer lots of healthy protein. Beware of added sugar in low-fat yoghurts and flavored milk, though, and skip processed cheese that often contains non-dairy ingredients.
Beans. Beans and peas are packed full of both protein and fiber. Add them to salads, soups and stews to boost your protein intake.
Nuts and seeds. As well as being rich sources of protein, nuts and seeds are also high in fiber and “good” fats. Add to salads or keep handy for snacks.
Tofu and soy products. Non-GMO tofu and soy are excellent red meat alternatives, high in protein and low in fat. Try a “meatless Monday,” plant-based protein sources are often less expensive than meat so it can be as good for your wallet as it is for your health.