ASMBS Bariatric Vitamin Guidelines Explained
Editorial review: Bari Liquid Force Editorial Team. The amounts below were source-checked against the named ASMBS and multi-society clinical guidelines. No individual clinician is presented as the medical reviewer. Bari Liquid Force is an ASMBS Corporate Council member; this independent article is not endorsed by ASMBS.
Direct answer: ASMBS prevention guidance gives total daily nutrient targets, not a rule that every nutrient must come from a separate bottle. A bariatric multivitamin may provide part or all of a target. Calcium commonly remains separate because the required amount is large, is taken in divided doses, and should be spaced from iron. Compare the full Supplement Facts panel with the target for your procedure and adjust the complete regimen with your bariatric clinician or dietitian.
ASMBS Prevention Targets at a Glance
The table summarizes the 2016 ASMBS micronutrient recommendations for routine prevention. It is not a deficiency-treatment table. Treatment doses may be different and should be directed by a clinician.
| Nutrient | Routine prevention total | Procedure or risk distinction |
|---|---|---|
| Thiamine (B1) | At least 12 mg daily; the guideline prefers 50 mg from a B-complex or multivitamin once or twice daily | All procedures; vomiting or suspected deficiency requires prompt clinical evaluation and different treatment |
| Vitamin B12 | 350–500 mcg daily by oral, disintegrating, sublingual, or liquid route; 1,000 mcg monthly by injection | All procedures; route and dose are adjusted to laboratory status |
| Folate | 400–800 mcg daily | 800–1,000 mcg daily for women of childbearing age |
| Iron (elemental) | At least 18 mg daily for low-risk patients | 45–60 mg daily from all supplements for menstruating patients and patients with SG, RYGB, or BPD/DS |
| Calcium | 1,200–1,500 mg daily for LAGB, SG, and RYGB, in divided doses | 1,800–2,400 mg daily for BPD/DS |
| Vitamin D3 | 3,000 IU daily until 25-hydroxyvitamin D is above 30 ng/mL | All procedures; the dose is guided by blood level |
| Vitamin A | 5,000 IU daily after LAGB; 5,000–10,000 IU after SG or RYGB | 10,000 IU daily after BPD/DS |
| Vitamin K | 90–120 mcg daily after LAGB, SG, or RYGB | 300 mcg daily after BPD/DS |
| Zinc | 8–11 mg daily after LAGB or SG; 8–22 mg after RYGB | 16–22 mg daily after BPD/DS; maintain the guideline's zinc-to-copper balance |
| Copper | 1 mg daily after LAGB or SG | 2 mg daily after RYGB or BPD/DS |
Can the Total Come From a Combined Product?
Yes. The iron recommendation explicitly refers to the total supplied by all vitamin and mineral supplements. The same practical comparison applies to other nutrients: add the amounts from the multivitamin and any separate supplements, then compare that combined daily amount with the target for your procedure. Food intake may also contribute, but absorption and intake vary after surgery.
A separate product is not automatically required for B12, iron, vitamin D, thiamine, folate, zinc, or copper if the combined regimen provides the intended amount and follow-up labs support the plan. Calcium is commonly separate because its daily target is too large for most multivitamins, the doses are divided, and calcium should be taken apart from iron.
How Bari Liquid Force Fits Into the Total
Explore Bari Liquid Force bariatric liquid vitamins in a liquid-filled softgel format, then compare the labeled daily serving with the nutrient targets and gaps outlined below.
The following amounts come from the current two-capsule Supplement Facts panel. This comparison explains contribution to the guideline targets; it does not label the product ASMBS-compliant.
| Nutrient | Bari Liquid Force daily serving | What the comparison means |
|---|---|---|
| Thiamine | 25 mg | Above the 12 mg minimum; below the guideline's preferred 50 mg once or twice daily wording |
| Vitamin B12 | 250 mcg cyanocobalamin | Contributes toward, but is below, the 350–500 mcg daily oral prevention range |
| Folate | 200 mcg folic acid | Contributes toward, but is below, the 400–800 mcg routine range |
| Iron | 9 mg elemental iron as ferrous fumarate | Contributes toward, but does not by itself meet, either the 18 mg low-risk total or the 45–60 mg higher-risk total |
| Calcium | 25 mg as calcium carbonate | Does not replace the separate procedure-specific calcium plan |
| Vitamin D3 | 1,000 IU | Contributes toward, but is below, the guideline's 3,000 IU preventive dose |
| Vitamin K | Not included | Must come from the rest of the care-team-approved regimen when indicated |
| Zinc / copper | 7.5 mg zinc / 1 mg copper | Copper matches the SG/LAGB amount; zinc and procedure-specific totals require comparison with the complete regimen |
Review the complete Bari Liquid Force Supplement Facts, then use the calcium form guide and iron guide to discuss any remaining gaps with your care team.
Clinical Sources
- Parrott J, et al. ASMBS Integrated Health Nutritional Guidelines for the Surgical Weight Loss Patient—2016 Update: Micronutrients.
- Mechanick JI, et al. Clinical Practice Guidelines for the Perioperative Nutrition, Metabolic, and Nonsurgical Support of Patients Undergoing Bariatric Procedures—2019 Update.
- Kim J, et al. Metabolic Bone Changes After Bariatric Surgery: 2020 Update.
Frequently Asked Questions
What vitamins does ASMBS recommend after bariatric surgery?
ASMBS guidance sets total daily nutrient targets. A bariatric multivitamin can supply part or all of several targets; compare its label with the amounts for your procedure and add separate supplements only where the complete plan requires them.
Are these amounts the same for every procedure?
No. Some amounts increase with more malabsorptive procedures — for example, calcium is higher for BPD/DS. Your care team sets amounts based on your surgery and labs.
Does every recommended nutrient need a separate supplement?
No. A combined product can count toward the total. Calcium commonly remains separate because of its dose and timing, while B12, iron, vitamin D, and other nutrients need separate products only when the combined regimen falls short or the care team individualizes the plan.
Is this page endorsed by ASMBS?
No. It is an independent plain-English summary of the publicly available ASMBS 2016 guidelines, not endorsed by ASMBS, and not a substitute for your own care team's plan.