ከካንኒኒን እጥረት ጋር ተያያዥነት ያላቸው ችግሮች በጾም ወይም እንደ ቫይረስ ኢንፌክሽኖች ባሉ ሕመሞች ሊነሳሱ ይችላሉ.
Problems related to primary carnitine deficiency can be triggered by periods of fasting or by illnesses such as viral infections.