BCAAs

They do nothing. Abject waste of money.

Branched Chain Amino Acids (BCAAs) refers to three amino acids: leucine, isoleucine, and valine.

For people with low dietary protein intake, BCAA supplementation can promote muscle protein synthesis and increase muscle growth over time. Supplementation can also be used to prevent fatigue in novice athletes.

Leucine plays an important role in muscle protein synthesis, while isoleucine induces glucose uptake into cells. Further research is needed to determine valine’s role in a BCAA supplement.

Supplementing BCAAs prevents a serum decline in BCAAs, which occurs during exercise. A serum decline would normally cause a tryptophan influx into the brain, followed by serotonin production, which causes fatigue.

BCAAs are important to ingest on a daily basis, but many protein sources, such as meat and eggs, already provide BCAAs. Supplementation is unnecessary for people with a sufficiently high protein intake (1-1.5g per kg of bodyweight a day or more).

https://examine.com/supplements/branched-chain-amino-acids/

>>41972387
They do largely the same as protein while usually being more expensive. Unless you have some special needs you can just buy whey.

>>41972387
Meme Magic™

>>41972387
I'm so happy there are BCAAs in my chicken breast, beef and even my whey protein otherwise I might have to buy it separately like all the retards seem to do.

>>41972729
Oh, also in Milk, Fish and Eggs, basically every animal product contains a significant amount of BCAAs.

>>41972387
they're good for muscle maintenance while fasting, basically the only thing that bcaa's are worth for is lifting while fasting, i take 20g of bcaas everyday when lifting because i lift right after waking up

>>41972387
Maybe not muscle gains but they sure do help preserve muscles while cutting.

>>41972387
really good to deal with sugar cravings, so if your weak willed like me go ahead

If you're fasting/cutting, they can slow catabolization of muscle. (basically they make it so that what your body thinks it needs when it catabolizes muscle is already in your system.)

If you're bulking, it's just really expensive protein powder.

>>41972387
they help retaining muscle on a cut, the amount of BCAAs in three tablets is obviously way less caloric than the same amount of BCAAs via food.

Good for people on keto who need to watch their protein intake.

>>BCAA supplementation may lower lactate levels after resistance training and improve muscular oxidation.
>>BCAAs may increase growth hormone (GH) circulation, which may be related to anabolic mechanisms causing muscle growth (De Palo EF et al 2001).
>>BCAA supplementation may decrease serum concentrations of the intramuscular enzymes creatine kinase and lactate dehydrogenase following prolonged exercise. This can decrease muscle damage and improve recovery (Coombes JS, McNaughton LR 2000).

Personal experience: cutting so I can't speak for muscle building, but noticeable improvement in recovery, able to work out more intensely (more explosive, lower rest time), and DOMS virtually stopped.