Comparing E620 - Glutamic acid vs E641 - Leucine
Overview
Synonyms
Products
Found in 115 products
Found in 180 products
Search rank & volume
Awareness score
Search volume over time
Interest over time for 3 keywords in U.S. during the last 10 years.
Interest over time for 3 keywords in U.S. during the last 10 years.
Popular questions
Is glutamic acid the same as glutamine?
No. Glutamic acid (E620) is an amino acid, while glutamine is its amide derivative; they’re related but chemically distinct and serve different roles.
Is glutamate the same as glutamic acid?
They’re the deprotonated (glutamate) and protonated (glutamic acid, E620) forms of the same molecule; at typical physiological and food pH, glutamate predominates.
Is glutamic acid acidic or basic?
Acidic—glutamic acid has two carboxyl groups and is largely present as its negatively charged form (glutamate) at neutral pH.
Is glutamic acid the same as glutamate?
Yes—glutamate is the ionized form of glutamic acid (E620); which term is used depends on pH or whether it’s in a salt (e.g., MSG).
Are glutamate and glutamic acid the same?
Yes—they refer to the same substance in different forms: glutamic acid is the acid, and glutamate is its anion or salt.
How much leucine per day to build muscle?
Aim for about 2–3 g of leucine per meal (roughly what’s in 20–30 g of high‑quality protein) to maximally stimulate muscle protein synthesis, totaling ~6–9 g/day across 3–4 protein-rich meals.
How much leucine per day?
Adult requirement is about 39 mg/kg/day (≈2.7 g/day for a 70 kg adult), typically met by normal protein intake; there’s no established upper limit, but large supplemental doses may cause stomach upset.
What does leucine do?
Leucine is an essential branched‑chain amino acid that activates mTOR to trigger muscle protein synthesis and support tissue repair; as E641 in foods, it can function as a flavor enhancer.
What food is highest in leucine?
Whey protein and hard cheeses (e.g., Parmesan) are among the highest, with lean meats (beef, chicken), fish (tuna), and soy protein isolate also very rich.
What foods have leucine?
Most protein-rich foods: meat, poultry, fish, eggs, dairy, soy products (tofu/tempeh), legumes (beans/lentils), nuts, seeds, and whole grains.