Essential Amino Acids Benefits for Weight Loss, Muscle Gain and Even Mood

AHA Publisher — Thu, 19 Sep 2019 06:08:46 +0000

Rachael Link, MS, RD via Dr. Axe – Your body needs all amino acids to function and thrive, but some can be produced in the body while others need to be obtained from food. Getting enough through either dietary sources or supplementation can help enhance weight loss, preserve muscle mass, improve exercise performance, boost mood and promote better sleep. Protein is incredibly important when it comes to your health. It makes up the structure of your bones, muscles and skin and is used to build tissues and synthesize hormones, enzymes and neurotransmitters. Amino acids are the building blocks of protein, which is why getting enough essential amino acids in your diet is critical to maintaining optimal health and preventing protein deficiency. So what are amino acids, and how can you be sure you gett the right mix to keep your body healthy? Here’s what you need to know. What Are Amino Acids? (What Roles Do They Play in the Body?) The official amino acids definition includes any organic compound that contains both a carboxyl and amino group. To put it simply, though, they are considered the building blocks of proteins. For example, they make up a large portion of your muscles and tissues, and protein foods like meat, fish, poultry and eggs are composed of many different types of amino acids. So how many amino acids are there, and what is the role of amino acids? There are 20 amino acids in total, each of which plays a very specific role in the body and is distinguished by its respective amino acid side chains. These amino acids are involved in almost every biological process and aid in wound healing, hormone production, immune function, muscle growth, energy production and more. Your body needs all amino acids to function and thrive, but some can be produced in the body while others need to be obtained from food. Getting enough through either dietary sources or supplementation can help enhance weight loss, preserve muscle mass, improve exercise performance, boost mood and promote better sleep. Essential Amino Acids vs. Non-Essential Amino Acids The 20 amino acids that your body needs can be further divided into two distinct categories: essential amino acids and non-essential amino acids. Essential amino acids cannot be synthesized by the body, That means you must get them from food sources to help meet your needs. So how many essential amino acids are there? There are nine essential amino acids that you must obtain through the diet, including: 1. Lysine: necessary for growth and tissue repair as well as the production of several hormones, proteins and enzymes. 2. Leucine: involved in protein synthesis, wound healing, blood sugar control and metabolism. 3. Isoleucine: aids in detoxification, immune function and hormone excretion. 4. Tryptophan: increases levels of serotonin, a neurotransmitter that regulates mood, pain, appetite and sleep. 5. Phenylalanine: helps produce other amino acids as well as neurotransmitters like dopamine and norepinephrine. 6. Threonine: forms the foundation of connective tissues like collagen and elastin. 7. Valine: supports brain function, muscle coordination and calmness. 8. Histidine: maintains the health of myelin sheaths, which protect nerve cells against damage. 9. Methionine: keeps skin elastic and helps strengthen the hair and nails. Getting a good variety of amino acids in your diet is crucial to maintaining overall health. A deficiency in any of these key essential amino acids can cause serious side effects that affect nearly every aspect of health, including immune function, muscle mass, appetite and more. In contrast, non-essential amino acids can be produced by your body, meaning it’s not as crucial to get them through the foods that you eat. There are a total of 11 amino acids that make the non-essential amino acids list, including: 1. Arginine: stimulates immune function, fights fatigue and optimizes heart health. 2. Alanine: aids in metabolism and provides energy for muscles, brain and central nervous system. 3. Cysteine: as the main type of protein found in hair, skin and nails, cysteine is crucial for collagen production and skin health. 4. Glutamate: acts as a neurotransmitter in the central nervous system. 5. Aspartate: helps produce several other amino acids, including asparagine, arginine and lysine. 6. Glycine: functions as a neurotransmitter to support brain health. 7. Proline: found in collagen, which helps promote joint health, metabolism and skin elasticity. 8. Serine: necessary for fat metabolism, immune function and muscle growth. 9. Tyrosine: helps synthesize thyroid hormones, melanin and epinephrine. 10. Glutamine: supports many metabolic processes and provides energy for the cells in the body. 11. Asparagine: acts as a diuretic and optimizes brain and nerve cell function. Some of the compounds on the amino acid list are also considered “conditionally essential.” That means they are usually not required the body but may become essential under certain conditions, such as extreme illness or stress. Amino acids can also be classified into other groups based on their structure and side chains, including polar amino acids, aromatic amino acids, hydrophobic amino acids, ketogenic amino acids, basic amino acids and acidic amino acids. Benefits of Essential Amino Acids 1. Enhance Weight Loss Amino acids benefit weight loss by enhancing fat loss and preserving lean body mass. Supplementing with branched-chain essential amino acids, in particular, has been shown to be especially effective when it comes to weight loss. Impressively enough, a study published in the Journal of the International Society of Sports Nutrition showed that consuming a supplement with branched-chain amino acids (BCAAs) while following an eight-week resistance training program led to significant increases in lean body mass and strength gains, plus greater decreases in percent body fat than consuming a whey protein supplement or sports drink. However, other research has turned up mixed results, indicating a need for additional studies in the future. 2. Preserve Muscle Mass As the primary building blocks of the muscle tissue, amino acids are absolutely essential to muscle maintenance and muscle growth. Plus, some studies have found that supplementing with essential amino acids can help prevent muscle loss, which is a common side effect that occurs with both aging and weight loss. For instance, a 2010 study published in the journal Clinical Nutrition showed that supplementation with essential amino acids helped improve muscle function for older adults on bed rest. Similarly, a study out of South Carolina found that supplementing with essential amino acids was effective at preserving lean body mass while promoting fat loss in athletes. 3. Improve Exercise Performance Whether you’re a casual gym-goer or a competitive athlete, essential amino acids are definitely necessary if you’re looking to bring your workout to the next level. In fact, essential amino acids like leucine, valine and isoleucine are commonly used to help promote muscle recovery, prevent soreness and fight fatigue as part of a healthy, post-workout meal. One large review of eight studies showed that supplementation with BCAAs was able to reduce muscle soreness and improve muscle function following intense workouts. Plus, another study conducted by Leeds Metropolitan University found that taking four grams of leucine daily helped enhance strength in men during a 12-week resistance training program. 4. Boost Mood Tryptophan is an essential amino acid that plays a key role in regulating mood and maintaining mental health. It’s used by the body to synthesize serotonin, a neurotransmitter that is believed to influence mood. An imbalance in this important neurotransmitter can also contribute to serious problems like depression, obsessive-compulsive disorder, anxiety, post-traumatic stress disorder and even epilepsy. A 2015 study published in the British Journal of Nutrition reported that chronic treatment with tryptophan had beneficial effects on both cognitive and emotional function while also enhancing feelings of happiness. Meanwhile, other research has also found that tryptophan can help treat symptoms of depression and alleviate anxiety. 5. Promote Better Sleep In addition to its powerful mood-boosting effects, some evidence suggests that tryptophan may also help enhance sleep quality and beat insomnia as well. This is because it helps increase levels of serotonin, which is involved in the sleep cycle. A large review published in the journal Evidence-Based Complementary and Alternative Medicine noted that there is evidence to support a sleep-moderating effect of tryptophan, although research is still mixed. Unlike many over-the-counter sleep medications, tryptophan is also well-tolerated and associated with minimal side effects, making it a great natural remedy to help promote better sleep. Signs of Amino Acid Deficiency (Plus Potential Causes and Complications) So what is amino acid deficiency, and what causes it? Also known as protein deficiency, this is a serious condition that occurs when you don’t consume enough amino acids to meet your daily needs. It can result in a long list of negative symptoms, ranging from reduced muscle mass to bone loss and beyond. Some of the top symptoms of an amino acid deficiency can include: • Dry skin • Splitting hair • Hair loss • Brittle nails • Thinning hair • Decreased muscle mass • Impaired growth in children • Increased appetite • Decreased immune function • Bone loss • Puffiness and swelling Protein deficiency can affect anyone who doesn’t get enough amino acids in the diet. Older adults and people with chronic conditions, such as cancer, are at an especially high risk for protein deficiency because they often have increased protein needs and decreased food intake. Those following a vegan or vegetarian diet should also plan their diets carefully to ensure they meet their protein needs by eating a variety of plant-based protein foods. Essential Amino Acids Food Sources The best way to ensure you meet your needs for all nine essential amino acids is to include a wide array of essential amino acids foods in your diet. Common examples of proteins like meat, fish, poultry, eggs and dairy products are some of the top essential amino acids sources and typically considered complete proteins. This means they contain all of the essential amino acids. For vegetarians, quinoa, buckwheat and fermented soy foods like tempeh or natto are also considered complete proteins. Keep in mind that, although many plant-based protein sources are considered “incomplete proteins” because they lack one or more of the essential amino acids, they can be combined with other foods to help fill in the gaps and make sure you meet your nutritional needs. Therefore, if you follow a well-balanced diet, it’s easy to get all of the essential amino acids that your body needs. So which foods are high in amino acids? Here are a few of the top essential amino acids foods that you may want to add to your diet: • Meat: beef, lamb, venison, etc. • Fish: salmon, tuna, mackerel, sardines, etc. • Poultry: chicken, turkey, duck, etc. • Eggs • Dairy Products: milk, yogurt, cheese • Fermented Soy: tempeh, natto, miso • Legumes: lentils, beans, peas • Whole Grains: quinoa, buckwheat, oats, amaranth, brown rice, etc. • Nuts: almonds, walnuts, pistachios, etc. • Seeds: chia seeds, pumpkin seeds, flaxseeds, etc. Amino Acid Supplements and Dosage Although amino acids are widely available in a variety of different food sources, you can also opt for supplementation to get a quick and concentrated boost of amino acids benefits. There are many different types of supplements available that differ in the type offered as well as the potential health benefits. Protein powder supplements like whey protein, hemp protein powder or brown rice protein offer many essential amino acids that your body needs while delivering a hearty dose of protein. Collagen or protein powder made from bone broth are two other easy options that can provide a good amount of protein as well as an array of essential amino acids. You can also opt for isolated amino acid supplements, such as tryptophan, leucine or lysine. Each of these has been linked to specific health benefits, and they’re all often used as natural treatments for conditions like cold sores, depression or insomnia. Regardless of which type of amino acid supplement you select, be sure to follow the recommended dosage carefully to avoid unwanted side effects. If you do experience any negative symptoms, consider...

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Essential Amino Acids Benefits for Weight Loss, Muscle Gain and Even Mood