The Neurological Complications of Nutritional Deficiency following Bariatric Surgery

Table 3

Specific neurological complications associated with vitamin deficiencies after bariatric surgery.

Vitamin/nutrient	Incidence	Complications
Vitamin A	10%	Xerophthalmia, night blindness, and decreased immunity
Vitamin B1	“Common”	Wernicke’s encephalopathy, Korsakoff syndrome, and Beriberi (dry/wet)
	<1% symptomatic
Vitamin B12	30–70%	Myelopathy, neuropathy, dementia, and depression
Folate	1–10%	Macrocytic anemia and fatigue may aggravate B12 deficiency
Vitamin D	50–60%	Myopathy
Vitamin E	Rare	Peripheral neuropathy, myopathy
Copper	Rare because undiagnosed	Myelopathy, sensory ataxia
Vitamin B2	14%	Burning feet syndrome
Vitamin B6	17%	Polyneuropathy