Objective:

To compare nutrient intake from diet and supplements one year after sleeve gastrectomy and Roux-en-Y gastric bypass.

Key Findings:

• Daily energy intake was similar: 1,670 kcal for sleeve gastrectomy and 1,650 kcal for Roux-en-Y gastric bypass.
• 98% of patients reported using vitamin or mineral supplements one year post-surgery.
• Intake of several vitamins and minerals remained below recommended levels for both procedures.
• Vitamin C intake was lower in sleeve gastrectomy patients compared to Roux-en-Y gastric bypass.
• Roux-en-Y gastric bypass patients had higher supplement intake of vitamin A and folic acid.

Interpretation:

Reported intake of vitamins and minerals was generally similar and satisfactory one year after both surgical procedures, though some differences in specific nutrients were noted.

Limitations:

• Study relied on self-reported dietary and supplement intake.
• No preoperative dietary assessments were included.
• Potential influence of the 4-day food record on eating behavior.
• Underreporting of dietary intake is common.

Conclusion:

Both surgical procedures resulted in similar nutrient intake from diet and supplements, but long-term differences remain uncertain.