Best muscle building foods

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Best muscle building foods

Amino acids are the building blocks for lean muscle. After a heavy bout of exercise your muscles are left with micro tears that need to be healed. The body responds to the stress by building more muscle to avoid the micro tears from occurring again. This is how muscle is built. But without the proper fuel from your diet, your body will struggle to pack on the muscle. This article will run you through exactly what is needed from your diet to build lean muscle tissue and what the best sources are.


Leucine is an essential amino acid which the body cannot produce naturally, so this means that it needs to be obtained from the diet. Much research has gone into this amino acid and it is well established that leucine is directly involved in muscle protein synthesis (1,2) or in other words the body's natural muscle building process.


Muscle protein synthesis has been found to be higher after ingestion of leucine alone compared to after a heavy bout of resistance exercise (3). This chart below shows the potency of leucine.


protein graph


The chart compares the independent and combined effects of resistance exercise and leucine-enriched essential amino acid and carbohydrate (EAA+CHO) ingestion on muscle protein synthesis (MPS). You can see that exercise alone has the smallest increase in MPS at around 40%. The ingestion of leucine with carbohydrates alone led to an increase in MPS of 100%. Exercise coupled with the ingestion of leucine and carbs resulted in an increase in MPS of about 145%. This demonstrates the powerful effects leucine has on building muscle, even when consumed without the presence of exercise.


So what foods contain leucine and how much do you need to consume a day? The research so far is limited on the exact amount of leucine to consume, but one study looked at optimal intakes and they concluded that 0.14g per kg of bodyweight is a good starting point (5). So for a 70kg man, he would look to consume around 10g of leucine a day to optimise muscle protein synthesis.


In terms of the best sources of leucine, I have compiled this chart below taken from the nutrition data website (6). Unsurprisingly, foods that are high in protein are generally high in leucine. With animal proteins dominating the list. Leucine content is based on 200kcal servings.


1. Egg white 4233mg
2. Seaweed/spirulina 3915mg
3. Game meat/moose 3844mg
4. Chicken 3698mg
5. Tuna 3574mg
6. Turkey 3569mg
7. White fish (cod, ling, haddock, cusk, pike) 3550mg
8. Cheese/cottage cheese 3540mg
9. Low fat milk (1% milk) 3540mg
10. Pork 3375mg
11. Lobster/shrimp/crab 3315mg
12. Duck 3300mg


Optimise your muscle building potential outside of the gym and make sure to consume foods that are high in leucine.


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