Nutritional Science for Bariatrics Flashcards

Thiamine (B1) deficiency after bariatric surgery can cause which serious neurological condition, especially with persistent vomiting?

Answer: Wernicke encephalopathy

Thiamine depletion from vomiting or poor intake can precipitate Wernicke encephalopathy.

Which supplement combination should be spaced apart because they compete for absorption?

Answer: Calcium and iron

Calcium inhibits iron absorption, so these supplements should be taken at separate times.

Which form of calcium is preferred after gastric bypass due to reduced stomach acid?

Answer: Calcium citrate

Calcium citrate is absorbed well without gastric acid, unlike carbonate.

A patient reports hair loss around 3-6 months post-op. Which nutrient inadequacy is a common contributor alongside rapid weight loss?

Answer: Inadequate protein

Inadequate protein during rapid weight loss commonly contributes to telogen effluvium hair shedding.

Which eating behavior is recommended to prevent overfilling the small gastric pouch?

Answer: Taking small bites and chewing thoroughly

Small bites and thorough chewing prevent obstruction and overfilling of the pouch.

Protein sources are prioritized at meals primarily because protein does what?

Answer: Preserves lean body mass and increases satiety

Adequate protein preserves muscle during weight loss and promotes fullness.

Which lab is most appropriate to routinely monitor vitamin D status?

Answer: Serum 25-hydroxyvitamin D

25-hydroxyvitamin D is the standard marker of vitamin D stores.