Amino acids

BCAA, EAA, glutamine, citrulline, beta-alanine and other amino acids: compare grams per serving and the price of a serving.

Amino acids are the building blocks of protein. Sports nutrition sells them singly or in blends: BCAAs (leucine, isoleucine, valine), EAAs (all nine essential ones), glutamine, citrulline, arginine, beta-alanine, taurine and others.

Amino acids have no authorised effect claims in the EU, so we describe the contents and show grams per serving. If you already drink protein, remember it contains every amino acid. More on each is on the ingredient pages.

FAQ

How do BCAAs differ from EAAs?

BCAAs are three amino acids; EAAs are all nine essential ones, those three included.

Do I need amino acids if I drink protein?

Protein already contains every amino acid. Separate products are often taken as a drink during training.

Powder or capsules?

Powder is better value and comes flavoured; capsules are handy, but gram doses take many capsules.

When should amino acids be taken?

There is no fixed time; follow the pack's directions.

Are there sugar-free amino acids?

Most powders are sugar-free, with sweeteners. The ingredients are on the product card.

Amino acids

Allnutrition GABA - 90 caps

Allnutrition Glycine Forte, 1600mg - 120 caps

Allnutrition L-Theanine - 100 caps

Doctor's Best L-Theanine with Suntheanine, 150mg - 90 vcaps

Doctor's Best L-Tyrosine, 500mg - 120 vcaps

Jarrow Formulas Taurine, 1000mg - 100 caps

Life Extension Glycine, 1000mg - 100 vcaps

Life Extension L-Lysine, 620mg - 100 vcaps

NOW Foods Arginine & Citrulline - 120 vcaps

NOW Foods Double Strength L-Theanine, 200mg - 120 vcaps

NOW Foods GABA with Vitamin B6, 500mg - 100 vcaps

NOW Foods GABA, 750mg - 100 vcaps

NOW Foods HMB, 1000mg - 90 tabs

NOW Foods L-Arginine, 1000mg - 120 tablets

NOW Foods L-Carnosine, 500mg - 100 vcaps

NOW Foods L-Citrulline, 1200mg Extra Strength - 120 tabs

NOW Foods L-Glutamine, 1000mg - 120 vcaps

NOW Foods L-Glutamine, 500mg - 120 vcaps

NOW Foods L-Lysine, 1000mg - 100 tabs

NOW Foods L-Lysine, 500mg - 100 tablets

NOW Foods L-Lysine, 500mg - 100 vcaps

NOW Foods L-Theanine with Decaf Green Tea, 100mg - 90 vcaps

NOW Foods L-Theanine with Inositol and Taurine, 100mg - 90 chewables

NOW Foods L-Tyrosine, 500mg - 120 caps

Amino acids

FAQ

Amino acids

Amino acids

FAQ

Join the newsletter