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one of the biggest misconceptions about
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both vegetarian and vegan diets is that
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it's difficult to get enough protein
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especially for those who are active
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there are more nutrients than just
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protein that should be considered in a
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plant-based diet but today we're going
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to go through what vegetarians and
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vegans need to know about plant-based
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my name is Elle and I'm a specialist
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Sports dietitian let's start with what
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protein is and why does it matter where
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it comes from protein is an essential
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nutrient and unlike other macronutrients
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we cannot store protein in the body like
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we can store carbohydrates and fats
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protein is not only important for the
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maintenance and growth of muscle mass
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and strength but also for our hair nail
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and hormone production too
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the body is in a constant state of
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muscle protein breakdown and repair and
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in order to maintain a balance between
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protein synthesis and degradation it is
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recommended that we eat protein at
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regular intervals throughout the day the
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recommended protein intake for adults is
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0.75 grams of protein per kilogram of
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body weight however exercise increases
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the rate of muscle protein breakdown
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which is why for those who are active
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the requirement of protein increases to
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between 1.2 to 2 grams per kilogram body
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weight per day depending on the type of
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activity for example strength athletes
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will likely need more protein than
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endurance athletes so we know that
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getting enough protein is important but
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the quality is also important and not
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all proteins are made the same protein
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is made up of amino acids and different
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proteins contain different combinations
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of amino acids there are 20 amino acids
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that are needed for bodily functions but
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nine of these are considered essential
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essential amino acids are the amino
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acids that we cannot make within our
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body and so we must obtain them from
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food generally speaking the protein we
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get from animal-based protein sources
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like Meats fish eggs and dairy are
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considered complete sources of protein
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meaning that they contain all nine of
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the essential amino acids that our body
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needs whereas plant-based sources of
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proteins such as beans and lentils are
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typically missing and essential amino
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acid or have lower levels of amino acids
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however there are some exceptions soy
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based protein sources like soy protein
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isolate soy milk or yogurt and tofu or
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tempeh contain all nine essential amino
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acids now this doesn't mean that unless
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you eat soy you will be able to obtain
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all of the essential amino acids in your
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diet because by combining different
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sources of plant-based protein at a meal
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you are likely to be able to compensate
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for the missing amino acids through
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other protein sources these are called
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complementary proteins for example beans
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are high in lysine but low in methionine
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whereas bread is low in lysine and high
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in methionine which makes beans on toast
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a meal that can provide all essential
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amino acids in comparison to eating
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beans or bread without another plant
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protein Source when it comes to muscle
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repair and growth the importance of
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amino acids are emphasized whilst we
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know that 20 to 40 grams of protein is
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required to maximally stimulate muscle
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protein synthesis we also know that a
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certain amount of leucine and essential
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amino acid is required to stimulate this
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leucine is typically obtained quite
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easily through animal protein sources
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but it can be trickier to obtain for
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vegetarians or vegans for vegetarians
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including yogurt milk and eggs can be a
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great source of both protein and leucine
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in adequate quantities but for vegans
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the amount of leucine in plant proteins
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is often low this means that a higher
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quantity of that food or a combination
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of different plant proteins might be
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needed in order to obtain the required
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some studies highlight that the
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ingestion of plant-based proteins such
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as wheat or soy protein results in a
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lower muscle protein synthetic response
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in comparison to the ingestion of an
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equivalent amount of animal derived
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protein and not just because some are
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lacking leucine this lower anabolic
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effect of plant-based proteins is
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thought to be attributable to the
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bioavailability of these protein sources
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bioavailability refers to the amount of
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a nutrient that we can actually absorb
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when it is digested quite often
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plant-based proteins are harder to
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digest because they contain fiber but
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also because they may contain phytates
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which can decrease the absorbability of
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amino acids calcium and iron the
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American College of sports medicine
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advises that vegetarian athletes need to
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eat around 10 more protein than if they
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were not vegan and this is to
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accommodate for the lower levels of
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essential amino acids in plant foods but
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also due to the bioavailability of amino
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acids in plant Foods what is interesting
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to note is that it is thought that
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insufficient calorie intake is more of a
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limiting factor for muscle growth and
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repair in vegetarians than a lack of
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protein because vegetarian and vegan
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diets can include a lot of high fiber
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foods such as vegetables whole grains
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beans and pulses and also mean that you
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have to eat more of certain foods in
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order to attain sufficient amounts of
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protein it can limit the ability to eat
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enough calories overall the reality is
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that without eating enough overall
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energy the capacity for maintaining and
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building muscle is limited and protein
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is not the only nutrient that is
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important for building muscle in the
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absence of sufficient carbohydrates
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protein is used to fulfill the functions
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of carbs which is to provide energy as
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opposed to being used from muscle repair
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and growth so whilst protein is
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important overall energy and
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carbohydrate intake are important to
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ensure that protein can be used for what
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it is designed to do for vegetarians and
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vegans more compact sources of
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carbohydrates and protein may help to
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meet overall energy protein and
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carbohydrate intake whilst fiber is
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important for a healthy digestive system
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and for lowering cholesterol and
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reducing the risk of their health
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conditions like type 2 diabetes it can
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be filling and also inhibit the
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absorption of certain nutrients
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including more Compact and less fibrous
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carbs can help to reach carbohydrate and
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calorie requirements a little bit easier
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something that is also worth considering
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is taking creatine supplements creatine
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has a similar structure to an amino acid
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but it is a compound produced by the
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body naturally creatine monohydrate is
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one of the most popular supplements
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taken by both recreational and Elite
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athletes but it is also found naturally
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in most meat products as the main source
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of dietary creatine is meat fish and
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poultry vegetarians will typically have
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a lower muscle concentration of creatine
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than non-vegetarians due to this
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naturally low Baseline level of creatine
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in vegetarians and vegans it is thought
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that they may respond better to creatine
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supplementation and exercise performance
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would be enhanced to a greater extent in
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vegetarians and vegans than meat eaters
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however studies are mixed as to whether
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creatine supplements have a greater
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effect in vegetarians and vegans
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regardless creatine supplements have a
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place in the diet for vegetarians and
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especially for vegans if you choose to
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go veggie or vegan you certainly don't
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have to worry about getting enough
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protein but it might just take some
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awareness and more thoughtful planning
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to help you reach your training and
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performance goals I my protein has a
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range of vegetarian and vegan friendly
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supplements to support your diet and
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lifestyle and I hope this video cleared
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up some of the misinformation around
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plant-based protein as always if you
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have any questions please drop them in
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the comments below and be sure to like
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this video And subscribe to my protein
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YouTube channel for more great
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evidence-based nutrition information