methionine
Essential sulfur amino-acid
Methionine is an amino acid essential to human nutrition, meaning the body cannot synthesize it and must obtain it from food.
It contains sulfur and plays roles in protein synthesis and metabolism.
Rich dietary sources include eggs, fish, and meat.
Methionine supplements are sometimes marketed for liver health.
Protein's molecular subunit
- essentialFundamentally necessary
- sulfur-containingBearing element S
- proteinFolded amino chain
- synthesisCombining parts into whole
peptide · codon · translation · ribosome · mRNA · tRNA · anticodon · initiator
Attaching a methyl group
- betainePlant-derived methyl donor
- cholineEssential dietary amine
- folateVitamin for DNA synthesis
- vitamin B12Nerve and blood nutrient
Something added to complete
- essential amino acidProtein component requiring ingestion
- dietCustomary food consumption
- protein sourcesFoods supplying amino acids
- foodsEdible substances for nourishment
eggs · meat · fish · sesame seeds · dairy · fortification · RDA · bioavailability
Bearing element S
- thiolSulfur-bearing organic compound
- cysteineThiol-containing amino acid
- taurineSulfonic amino acid
- glutathioneSulfur-containing cellular antioxidant
Lack of something needed
- malabsorptionFailed intestinal nutrient uptake
- supplementationAdding to something insufficient
- newborn screeningMedical tests for infants
- dietary restrictionRule about allowed foods
Domesticated farm animals
- aquacultureFarming underwater organisms
- animal feedFood for livestock
- broilerTop-heat cooking compartment
- laying hensFemale poultry producing eggs
amino acid
Protein's molecular subunit
- essentialFundamentally necessary
- sulfur-containingBearing element S
- proteinFolded amino chain
synthesis · peptide · codon · translation · ribosome · mRNA · tRNA · anticodon · initiator · polypeptide
methylation
Attaching a methyl group
supplement
Something added to complete
- essential amino acidProtein component requiring ingestion
- dietCustomary food consumption
- protein sourcesFoods supplying amino acids
foods · eggs · meat · fish · sesame seeds · dairy · fortification · RDA · bioavailability · absorption
sulfur-containing
Bearing element S
deficiency
Lack of something needed
- malabsorptionFailed intestinal nutrient uptake
- supplementationAdding to something insufficient
- newborn screeningMedical tests for infants
livestock
Domesticated farm animals
- aquacultureFarming underwater organisms
- animal feedFood for livestock
- broilerTop-heat cooking compartment