"The L-glycine boost may be especially helpful for obtaining higher metal spills for "sensitive" patients for whom one might anticipate problems with the most productive DMSA challenge of 30 mg/kg, oral bolus not to exceed 2 gm.16 In such cases, doctors have gotten impressive results using just a single dose of 10 mg/kg DMSA combined with the latter protocol for L-glycine, followed by a six-hour urine collection. Otherwise, the low-dose DMSA challenge is significantly less productive and may be of limited clinical value.17"
Where did you get these paragraphs about glycine.
Be careful not to believe everything that you find on the internet.
If someone gives their 'sensitive' mercury poisoned patients 30 - 10mg/kg DMSA they are going to make them seriously ill if not kill them off. The person considering those huge doses of DMSA must be insane.
Glycine is known to be beneficial to the body for many reasons.