Per4m Amino Xtra 420 g – BCAA & Glutamine Powder

BCAAs (leucine, isoleucine, valine)

Branched-chain amino acids (leucine, isoleucine and valine) are essential amino acids found in protein-rich foods. Leucine stimulates muscle protein synthesis.

L-glutamine

Glutamine is the most abundant amino acid in the body and is made in muscle.

Taurine

Taurine is an amino sulfonic acid made by the body and found in meat and fish. It is involved in bile acid formation and cell volume regulation, and it is a common energy-drink ingredient¹.

BCAAs (leucine, isoleucine, valine)

A systematic review found that pure BCAA supplementation may reduce muscle soreness after exercise, but evidence for improved strength, endurance or body composition is inconsistent².

L-glutamine

A review concluded that the reasons usually given for taking glutamine (immune support, glycogen synthesis, reduced muscle breakdown) have received little support from well-controlled studies in healthy, well-nourished people³.

Taurine

There is no authorised EU health claim for taurine, and evidence that taurine on its own improves exercise performance in healthy people is limited.

BCAAs (leucine, isoleucine, valine)

Studies are small and diets are often poorly controlled². Complete protein or essential amino acids are generally preferred for building muscle.

L-glutamine

Benefits shown in clinical nutrition (for example in critical illness) do not apply to healthy athletes³.

Taurine

Most of the research uses taurine in combination with caffeine or other ingredients.

• Do not exceed the recommended daily dose.
• Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.
• Keep out of the reach of young children.

BCAAs (leucine, isoleucine, valine)

Generally well tolerated at studied doses.

L-glutamine

Glutamine was well tolerated at the doses studied³; a risk assessment identified an observed safe level of 14 g a day⁴.

Taurine

A risk assessment identified an observed safe level of 3 g a day of supplemental taurine⁴, and EFSA did not raise safety concerns for the amounts used in energy drinks¹.

Sold as a food supplement. No health claims are made for this product.

BCAAs (leucine, isoleucine, valine)

No health claim for this ingredient is authorised in the EU⁵; it is sold under national food-supplement rules⁶.

L-glutamine

No health claim for this ingredient is authorised in the EU⁵; botanical ingredients are sold under national food-supplement rules⁶.

Taurine

Taurine is used in EU foods and food supplements. No health claim is authorised⁵.