Alanine

amino acid
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Alanine is a simple alpha-amino acid with a non-polar side chain. The body produces it mainly from pyruvate through transamination. This internal production ensures its availability for physiological functions even without direct dietary intake, making it a foundational component for various biological processes. It is particularly noted for its presence in metabolic pathways and as a building block for structural proteins. A key function of alanine is its role in the glucose-alanine cycle, which connects muscle and liver metabolism. During periods of exercise or fasting, alanine transports amino groups from muscle tissue to the liver. There, the nitrogen is converted to urea for excretion, while the remaining carbon is used to synthesize new glucose, which returns to the bloodstream to provide energy for muscles and other tissues. Beyond metabolism, alanine supports immune system function through immunoglobulin synthesis and assists in maintaining stable blood sugar levels. It is integral to protein structure throughout the body and is currently being researched for its potential roles as a neurotransmitter in the brain. These functions highlight its importance in both systemic health and physical performance.

Natural sources
MeatPoultryFishEggsDairy productsSoyNutsLegumesWhole grains

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Optimal Dosage
Minimum1000 mg
Maximum3000 mg
Safety & Toxicity
2 safety notes
  • Individuals with pre-existing liver or kidney conditions should consult a healthcare professional before supplementing with alanine.
  • Pregnant or breastfeeding women should seek medical advice before use.

Studies

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Interactions

Positive Interactions

Glutamine
Both are amino acids involved in muscle metabolism and nitrogen transport, complementing each other's roles in energy and recovery.
Creatine
Both alanine and creatine support cellular energy production in muscles, potentially enhancing athletic performance synergistically.
Leucine
As a branch-chain amino acid (BCAA), Leucine works with alanine in muscle protein synthesis and energy metabolism.
Isoleucine
Another BCAA, Isoleucine, supports muscle protein synthesis and energy alongside alanine.
Valine
The third BCAA, Valine, collaborates with alanine in muscle protein synthesis and energy pathways.
Arginine
Both amino acids are involved in nitrogen metabolism and muscle health, supporting overall protein function.
L-Carnitine
L-Carnitine aids in fat metabolism for energy, complementing alanine's role in glucose metabolism for sustained energy.
Acetyl L-Carnitine
Similar to L-Carnitine, Acetyl L-Carnitine supports energy metabolism, which can work in conjunction with alanine's glucose-alanine cycle.
Vitamin B6
Vitamin B6 is a critical cofactor for enzymes involved in amino acid metabolism, including the transamination reactions that synthesize and metabolize alanine.
Magnesium
Magnesium is a cofactor for numerous enzymatic reactions, including those involved in energy production and amino acid metabolism where alanine plays a role.
Proprietary Blend (Amino Acid/Protein)
Alanine is a fundamental amino acid, and its presence within a broader amino acid or protein blend enhances the overall protein synthesis and metabolic support provided by the blend.