{"id":4940,"date":"2021-03-14T08:16:29","date_gmt":"2021-03-14T15:16:29","guid":{"rendered":"https:\/\/www.bornfitness.com\/?p=4940"},"modified":"2021-03-19T13:03:27","modified_gmt":"2021-03-19T20:03:27","slug":"high-quality-protein","status":"publish","type":"post","link":"https:\/\/www.bornfitness.com\/high-quality-protein\/","title":{"rendered":"What is a High-Quality Protein?"},"content":{"rendered":"<p><strong>Editor&#8217;s Note:<\/strong> It pains me to say this, but peanut butter is not a high-quality source of protein.<\/p>\n<p>Before you counter with claims about almond butter, cashew butter, or any nut butter, they all fall into the same category along with many other popular &#8220;protein snacks.&#8221;<\/p>\n<p>As the unofficial President of the Peanut Butter Fan Club, I don&#8217;t like to discredit peanut butter in any way. But, knowing my love of peanut butter (it&#8217;s still perfectly fine to include in your diet) will help you understand why it&#8217;s important to know about high-quality proteins.<\/p>\n<p>That&#8217;s because what is <em>marketed as good protein<\/em> is rarely accurate.<\/p>\n<p>You can blame the food industry, but don&#8217;t expect them to change any time soon. The good news: learning to differentiate high-quality protein from &#8220;regular&#8221; (scientist will call it incomplete) protein is pretty easy.<\/p>\n<p>Even better: there are simple ways to turn incomplete proteins into complete proteins (think of it as a way to upgrade your favorite nut butter of choice).<\/p>\n<p>The best news: once you add more high-quality protein to your diet, you start to see the benefits you want, ranging from fat loss and muscle gain to better hair, skin, and nails.<\/p>\n<p>You don&#8217;t have to ditch your peanut butter. But, if you&#8217;ve been focusing on getting a lot of your daily protein from nuts (or other incomplete sources), you&#8217;re about to realize all the ways you&#8217;ve been missing out. <strong>-AB<\/strong><\/p>\n<h2>Why Is Protein Important?<\/h2>\n<p><span style=\"font-weight: 400;\">Before we get to quality, let&#8217;s make something clear: you\u2019ve probably heard that you need more protein in your diet, and for a good reason. <\/span><\/p>\n<p><span style=\"font-weight: 400;\"><a href=\"https:\/\/bjsm.bmj.com\/content\/52\/6\/376\">Protein is the building block for muscle<\/a>, but it\u2019s also so much more. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Protein is also essential for maintaining a <a href=\"https:\/\/www.sciencedaily.com\/releases\/2017\/03\/170313102420.htm\">strong immune system<\/a>, bones, tendons, and is responsible for many <a href=\"https:\/\/www.nature.com\/scitable\/topicpage\/nutrient-utilization-in-humans-metabolism-pathways-14234029\/\">metabolic reactions<\/a>. There is also a<\/span><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/20847729\"><span style=\"font-weight: 400;\"> clear relationship<\/span><\/a><span style=\"font-weight: 400;\"> between protein and weight loss. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Here\u2019s the thing: <\/span><\/p>\n<blockquote class=\"tweetable\"><p><strong>Not all proteins are created equal. <\/strong><\/p><\/blockquote>\n<p><span style=\"font-weight: 400;\">Quality counts. But what\u2019s the difference between protein and \u201chigh-quality protein?\u201d It&#8217;s locked in the amino acids of each type of protein. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">As much as protein all looks the same on a nutrition label, it&#8217;s not.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">If you&#8217;re confused, don&#8217;t worry. As we mentioned, d<\/span><span style=\"font-weight: 400;\">istinguishing high-quality protein from lesser-quality protein is easier than you might think. And, once you learn to recognize the difference, you&#8217;ll be able to adjust how you eat without much stress.\u00a0<\/span><\/p>\n<h2>Why Amino Acids Are Important<\/h2>\n<p><span style=\"font-weight: 400;\">Every source of protein has a different amino acid profile. These amino acids \u2014 or the component parts that a protein will become when you digest it \u2014 are a big determinant of whether or not a protein is high-quality. \u00a0\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Your body can produce many amino acids on its own. But there are some it <em>can\u2019t<\/em> make. They are: <\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">histidine <\/span><\/li>\n<li><span style=\"font-weight: 400;\">isoleucine <\/span><\/li>\n<li><span style=\"font-weight: 400;\">leucine <\/span><\/li>\n<li><span style=\"font-weight: 400;\">lysine <\/span><\/li>\n<li><span style=\"font-weight: 400;\">methionine <\/span><\/li>\n<li><span style=\"font-weight: 400;\">phenylalanine <\/span><\/li>\n<li><span style=\"font-weight: 400;\">threonine <\/span><\/li>\n<li><span style=\"font-weight: 400;\">tryptophan <\/span><\/li>\n<li><span style=\"font-weight: 400;\">valine<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">These are the \u201cessential amino acids,\u201d and you must get them through your diet. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Any food that contains all nine essential amino acids is known as a \u201ccomplete protein.\u201d<\/span><\/p>\n<p>High-quality proteins contain all of the essential amino acids (amino acids are the building blocks of protein).<\/p>\n<p>When you eat all of the essential amino acids (AKA a complete protein), that&#8217;s when your body can put protein to work and unlock all of the benefits.<\/p>\n<p>On the flip side, if you don&#8217;t have the essential amino acids, even if you&#8217;re eating protein, your body might not be able to use all of the\u00a0<em>other<\/em> amino acids to help out.<\/p>\n<p>Now that you know why essential amino acids make a complete protein, you&#8217;ll better understand why high-quality protein matters.<\/p>\n<figure id=\"attachment_4944\" aria-describedby=\"caption-attachment-4944\" style=\"width: 1920px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4944 size-full\" src=\"https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_whey_protein_powder_born_fitness.jpg\" alt=\"\" width=\"1920\" height=\"1080\" srcset=\"https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_whey_protein_powder_born_fitness.jpg 1920w, https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_whey_protein_powder_born_fitness-300x169.jpg 300w, https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_whey_protein_powder_born_fitness-768x432.jpg 768w, https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_whey_protein_powder_born_fitness-1024x576.jpg 1024w, https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_whey_protein_powder_born_fitness-700x394.jpg 700w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><figcaption id=\"caption-attachment-4944\" class=\"wp-caption-text\">More protein isn&#8217;t always better. Quality counts.<\/figcaption><\/figure>\n<h2><b>What Makes a Protein High-Quality?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A high-quality protein really is a<\/span><span style=\"font-weight: 400;\"> function of three things:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">protein digestibility (i.e. \u201cCan your body break it down?\u201d) \u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">amino acid content (i.e. \u201cWhat\u2019s really inside the protein?\u201d)<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">the resulting amino acid availability to support metabolic function (i.e. \u201cWill your body be able to use those amino acids the way you want it to?\u201d). \u00a0<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The process of digesting any food begins when you chew. But, protein is unique among <\/span><a href=\"https:\/\/www.bornfitness.com\/fix-your-diet-understanding-proteins-carbs-and-fats\/\"><span style=\"font-weight: 400;\">the three major macronutrients<\/span><\/a><span style=\"font-weight: 400;\"> in that your body\u2019s digestion of it truly begins in the stomach and continues into the small intestine. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Technically speaking, enzymes work to fully break down the protein you eat into smaller chains of amino acids. This is very important because, as we mentioned above, it&#8217;s actually all the amino acids that your body puts to work. (For example, leucine is an amino acid that is a key figure in building muscle. But, as you&#8217;ll find out, amino acids don&#8217;t work alone.)<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Before a chain can be absorbed into your bloodstream, it must be shortened into individual amino acids. Only then, when these amino acids hit the bloodstream, can they be transported to help whatever your body needs.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">They may also be held for a short time with other amino acids in what\u2019s referred to as an amino acid pool. The body can turn to this pool and take the exact amino acids it needs to create a larger protein molecule required for one function or another and leave behind what it doesn\u2019t require at the moment.<\/span><\/p>\n<ul>\n<li>Need to build muscle? Dip into the amino acid pool.<\/li>\n<li>Trying to recover from a hard workout? Amino acid pool, please.<\/li>\n<li>Searching for collagen for your skin? Yep, amino acid pool<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">While the process might appear cut-and-dry, it\u2019s not that simple. First of all, if you want to get the amino acids out of the pool, all of the <em>essential amino acids<\/em> must be present.\u00a0 <\/span><\/p>\n<p>So, it&#8217;s easy to see why incomplete proteins, which don&#8217;t have all of the amino acids, can become a barrier to experiencing the benefits of protein.<\/p>\n<p><span style=\"font-weight: 400;\">Also, not all protein is 100 percent digested. And, if it&#8217;s not all digested and broken down, then that means you don&#8217;t have as many amino acids present in your bloodstream.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Scientists can measure a protein\u2019s digestibility in the lab is by monitoring nitrogen absorption and excretion. (Protein is the only macronutrient that contains nitrogen, which is why this works.) \u00a0The outcome of this test typically produces a digestibility score. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Proteins that are highly digestible receive scores close to 100% (digestible). Lower scores are less digestible. If you were to consume a protein with a digestibility score of 90%, then for every 10g you consumed, you would absorb 9g and excrete 1g.<\/span><\/p>\n<p>What helps the protein digestibility score? Having more essential amino acids.<\/p>\n<p><span style=\"font-weight: 400;\">In general, animal proteins \u2014 such as dairy, eggs, and meat \u2014<\/span><a href=\"http:\/\/jn.nutrition.org\/content\/130\/7\/1865S\/T2.expansion.html\"><span style=\"font-weight: 400;\">\u00a0score highly<\/span><\/a><span style=\"font-weight: 400;\">. Vegetarian proteins typically score lower because they&#8217;re lower in essential amino acids.<\/span><\/p>\n<h2><b>What Are High-Quality Protein Sources?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">If you just want a list of high-quality protein sources, we have you covered.\u00a0<\/span>The top sources are:<\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">Dairy products: including milk, whey protein powder, casein protein powder, hard cheese, cottage cheese, and yogurt<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Eggs<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Seafood and fish<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Beef and bison<\/span><\/li>\n<li>Game meats (such as venison and elk)<\/li>\n<li><span style=\"font-weight: 400;\">Chicken<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Pork<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Pea Protein<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Soybeans<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Vegan protein powders (primarily consisting of pea protein, potato protein, and corn protein)<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">You might notice that the majority of the high-quality options are from animal sources.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">That doesn&#8217;t mean you can&#8217;t get high-quality protein on a plant-based diet. You can still fill your diet with the protein you need even if you never want to put any animals in your mouth. But, it requires you to combine vegan- or plant-based sources of protein to create a complete amino acid profile.\u00a0<\/span><\/p>\n<h2><b>Why Animal-Based Protein is the \u201cEasy Button\u201d <\/b><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4943\" src=\"https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_stake_born_fitness.jpg\" alt=\"\" width=\"1920\" height=\"1080\" srcset=\"https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_stake_born_fitness.jpg 1920w, https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_stake_born_fitness-300x169.jpg 300w, https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_stake_born_fitness-768x432.jpg 768w, https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_stake_born_fitness-1024x576.jpg 1024w, https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_stake_born_fitness-700x394.jpg 700w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Animal protein sources mimic the protein composition of human tissue. This is why meat naturally offers a highly usable blend of amino acids\u2014including all nine essential amino acids (with some exceptions, which we\u2019ll get to in a second). <\/span><\/p>\n<p><span style=\"font-weight: 400;\">As a result, we humans can use protein from an animal source in a very efficient manner. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Animal proteins range from the obvious\u2014beef, pork, chicken, <\/span><a href=\"https:\/\/www.bornfitness.com\/how-many-eggs-are-safe-to-eat\/\"><span style=\"font-weight: 400;\">eggs<\/span><\/a><span style=\"font-weight: 400;\">, and fish\u2014to fluid sources such as milk. All of these are high-quality protein sources that are highly bioavailable (your body can put them to use easily).<\/span><\/p>\n<blockquote class=\"tweetable\"><p>Nearly all animal proteins are highly bioavailable &#8212; meaning your body can put them to use more easily.<\/p><\/blockquote>\n<p><span style=\"font-weight: 400;\">This includes dairy, which supplies a wealth of amino acids, including a high amount of leucine. So, perhaps, it\u2019s not surprising that <\/span><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC3529694\/\"><span style=\"font-weight: 400;\">studies<\/span><\/a><span style=\"font-weight: 400;\"> involving chronic exercisers have found that consuming milk-based protein after resistance exercise promotes muscle protein synthesis, more muscle, and less flab. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">While collagen and bone broths are popular for their potential to support joint health and other tissue function within the body, collagen protein is high in only 3 amino acids (glycine, proline, and hydroxyproline) while being fairly low in the other essential amino acids. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bone broths may deliver health benefits, but they alone won\u2019t help with muscle building or fat loss (or satisfy your body\u2019s amino acid requirements, unless you add chicken or beef to the broth, in which case, you\u2019re all set.) <\/span><\/p>\n<h2><b>What About High-Quality Plant Protein? <\/b><\/h2>\n<figure id=\"attachment_4942\" aria-describedby=\"caption-attachment-4942\" style=\"width: 1920px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-4942\" src=\"https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_peas_born_fitness.jpg\" alt=\"A bunch of peas pour out of a jar onto a table. Pea protein is a higher quality than most realize.\" width=\"1920\" height=\"1080\" srcset=\"https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_peas_born_fitness.jpg 1920w, https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_peas_born_fitness-300x169.jpg 300w, https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_peas_born_fitness-768x432.jpg 768w, https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_peas_born_fitness-1024x576.jpg 1024w, https:\/\/www.bornfitness.com\/wp-content\/uploads\/2018\/05\/high_quality_protein_peas_born_fitness-700x394.jpg 700w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><figcaption id=\"caption-attachment-4942\" class=\"wp-caption-text\">They say pea protein is the new whey.<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Conversely, most plant sources (but not all) have an amino acid profile that differs drastically from that of humans. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Many (but not all) plant proteins are low in various essential amino acids, especially leucine. This is important to note, because leucine plays a critical role in turning on muscle protein synthesis (MPS), which is key for building and repairing muscle tissue. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">The big exceptions are <\/span><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/19145965\"><span style=\"font-weight: 400;\">soy<\/span><\/a><span style=\"font-weight: 400;\">, potato protein, corn protein, and pea protein. In fact, pea protein has been tested as <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC6358922\/\">a favorable vegan alternative to whey<\/a>. These vegetarian sources contain all of the essential amino acids you require.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Outside of those sources, most plant-based proteins are not complete. All this means is that consuming one lone source of plant protein cannot support body growth and maintenance. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">But there\u2019s a simple fix. If you combine different plant protein sources, then you can receive adequate amounts of all nine essential amino acids. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Examples of complementary proteins include combining legumes and grains, such as red beans and rice, or vegetables and legumes, such as what you\u2019d find in a 9-bean vegetable soup. <\/span><\/p>\n<blockquote class=\"tweetable\"><p><strong>When you eat complementary proteins, the combined sources equal a complete protein source. <\/strong><\/p><\/blockquote>\n<p><span style=\"font-weight: 400;\">You don&#8217;t have to do this at the same meal. Your body will store the amino acids for about 4 to 6 hours as they come in, and then re-synthesize proteins as it needs by pulling from body cells and blood supplies later. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Often you need to eat more plant-based protein to get the equivalent amount of amino acids that you would from a smaller amount of animal protein. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">So really, your main takeaways here are:<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\"><strong>The exact amount of protein you need will depend on the quality of the protein you eat. <\/strong><\/li>\n<li style=\"font-weight: 400;\"><strong>If you consume a lot of plant-based protein or are exclusively plant-based, you may need to increase your total daily protein intake, even more, to compensate for the lower protein quality. <\/strong><\/li>\n<li style=\"font-weight: 400;\"><strong>If you are vegetarian or vegan, eat a diverse mix of foods, and you may want to research the amino acid profiles of the foods you eat.<\/strong><\/li>\n<\/ol>\n<h3><em><b>READ MORE: <\/b><\/em><\/h3>\n<p><a href=\"https:\/\/www.bornfitness.com\/what-is-the-best-protein-powder\/\"><span style=\"font-weight: 400;\">What is the Best Protein Powder?<\/span><\/a><\/p>\n<p><a href=\"https:\/\/www.bornfitness.com\/why-people-fear-protein\/\"><span style=\"font-weight: 400;\">The Curious Case of Why People Fear Protein<\/span><\/a><\/p>\n<p><a href=\"https:\/\/www.bornfitness.com\/no-carbs-diet-flaw-fat-loss\/\"><span style=\"font-weight: 400;\">No Carbs Diet: The Flaw in Fat Loss<\/span><\/a><\/p>\n<p><i><span style=\"font-weight: 400;\">Pamela Nisevich Bede, MS, RD, CSSD, LD is a 21-time marathoner, Ironman triathlete, and mom who counsels athletes and wellness enthusiasts towards optimal performance at <\/span><\/i><a href=\"http:\/\/www.swimbikeruneat.com\"><i><span style=\"font-weight: 400;\">Swim, Bike, Run, Eat!, LLC<\/span><\/i><\/a><i><span style=\"font-weight: 400;\">, and is the resident endurance sports nutrition expert at <\/span><\/i><a href=\"https:\/\/eas.com\/\"><i><span style=\"font-weight: 400;\">EAS Sports Nutrition<\/span><\/i><\/a><i><span style=\"font-weight: 400;\">. She has contributed to <\/span><\/i><a href=\"https:\/\/www.amazon.com\/Runners-World-Run-Lose-Complete\/dp\/1623365996\"><i><span style=\"font-weight: 400;\">multiple books<\/span><\/i><\/a><i><span style=\"font-weight: 400;\"> and is regularly sought to provide insight to numerous publications. Connect with her <\/span><\/i><a href=\"http:\/\/twitter.com\/pambederd\"><span style=\"font-weight: 400;\">@PamBedeRD<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Some protein sources are better than others, according to science. Here\u2019s how to tell whether a protein is\u2014or isn\u2019t\u2014high quality. <\/p>\n","protected":false},"author":37,"featured_media":4941,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58],"tags":[9,45,24,154,15,22,28],"class_list":["post-4940","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nutrition","tag-diet","tag-gain-muscle","tag-health-2","tag-muscle-building","tag-protein-powder","tag-supplements-2","tag-vegetarian","bf-level-all-levels"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is a High-Quality Protein?<\/title>\n<meta name=\"description\" content=\"Some protein sources are better than others, according to science. 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