DL-Methionine supplies a mixed form of the amino acid methionine. You get both the L-isomer your body uses for building proteins and methylation, and the D-isomer, which contributes to the supplement's main practical use. Together they help shift urine pH downward, creating a more acidic environment.
People sometimes take it as part of a supervised plan to address specific urinary tract concerns, though this approach is seen far more often in veterinary practice. Always use it under professional guidance. Taking it with meals can ease stomach upset. Capsule and tablet forms are common.
High doses can raise homocysteine, a marker tied to cardiovascular strain. Steer clear if you have a history of kidney stones, gout, acidosis, liver disease, or an inherited problem processing methionine. The supplement can change how the body eliminates certain drugs by altering urine pH. Skip it during pregnancy or while breastfeeding.