check this out:
this stuff?

the potentially harmful substance in the pills are:
L-Carnitine
Along with its needed effects, a medicine may cause some unwanted
effects. Although not all of these side effects may occur, if they
do occur, they may need medical attention.
Check with your doctor as soon as possible if any of the following
side effects occur:
More common
High blood pressure
Less common
Fast heartbeat; fever
Rare
Seizures
The following side effects may go away during treatment as your
body adjusts to the medicine. However, check with your doctor if
any of these effects continue or are bothersome:
More common
Abdominal or stomach cramps; diarrhea; headache; nausea or
vomiting
Less common
Abdominal discomfort; body odor; depression; dizziness; impaired
vision; loss of appetite or weight; swelling in hands, lower legs,
and feet; tingling sensation; weakness
Other side effects not listed above may also occur in some
patients. If you notice any other effects, check with your
doctor.
Chromium
Picolinate
could damage the genetic material of hamsters cells
Citrus
Aurantium
Serious Side Effects
Cancer
Liver damage
Kidney damage
Heart problems
Death