Sleeve vs Gastric Bypass: Nutrient Intake at 1 Year - Summary - MDSpire
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Sleeve vs Gastric Bypass: Nutrient Intake at 1 Year

Investigators analyze 4-day food records and supplement reports from 285 patients at seven Swedish metabolic and bariatric centers in a substudy of the randomized BEST trial.

  • By

  • Kathryn Wighton

  • March 19, 2026

  • 3 min

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Objective:

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

Approach:
    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.

    Sources:

Original Source(s)

Sleeve vs Gastric Bypass: Nutrient Intake at 1 Year

  • by Kathryn Wighton

  • March 19, 2026

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