Table 1.

Recommended daily micronutrient intakes for pregnant women, in general, and in those with previous BS

Micronutrient	Recommended daily intake for pregnant women in general	Recommended daily intake for pregnant women with previous BS
Folic acid	0.4 mg, starting 1 month before conception, and continued during the first trimester.	The same as for pregnant women in general. In obese pregnant women: 5 mg.
Iodine (in iodine-insufficient areas)	200 µg	200 µg
Iron	27–30 mg	Routine supplementation after BS is recommended to achieve correct hemoglobin and ferritin levels.
Vitamin B12	2.6 mg	Supervised regular supplements to keep levels within the normal range.
Calcium	1,000–1,300 mg	Routine supplements after BS, ie, 1,200–1,500 mg.
Vitamin D	200–400 UI	Routine supplements to maintain 25(OH)-vitamin D levels above 20–30 ng/dL.
Vitamin A	770 µg	The same as in pregnant women in general. Supplements should be used routinely after all BPD procedures and in some cases after RYGB.

Abbreviations: BS, bariatric surgery; BPD, biliopancreatic diversion; RYGB, Roux-en-Y gastric bypass.