L-Cysteine
additive ingredient
What is it?
L-Cysteine is an additive, such as a preservative, flavouring or colouring. Graded medium: nutritionally adequate and nothing to worry about, but not a standout ingredient either way.
Other names on labels: l-cysteine (0.3 g/kg, cysteine
At a glance
- Base score
- 0.5 (from −1 to 1; higher is better)
- Found in
- 0 products
No products in our catalogue currently list this ingredient.
Try another entry in the ingredient glossary.
Common questions about l-cysteine
Is L-Cysteine good for dogs?
We grade it medium: nutritionally adequate, but not a standout either way. The overall recipe matters more than any single ingredient.
How many UK dog foods contain l-cysteine?
None of the UK products in our database currently list l-cysteine as an ingredient.
What else is l-cysteine called on labels?
Manufacturers list it under several names: l-cysteine (0.3 g/kg, cysteine. We match all of these to the same glossary entry when we read a label.
Show 1 more question
How does Open Dog Food grade l-cysteine?
We grade it medium: nutritionally adequate, but nothing special either way. Every ingredient is converted to its dry-matter share and scored from our glossary before a recipe gets its 1-100 rating; the full method is on our methodology page.