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M10 Suplementação Vitamínica - 4. Como escolher um bom polivitamínico para o bariátrico.
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M10 Suplementação Vitamínica - 4. Como escolher um bom polivitamínico para o bariátrico.

How to Choose a Good Multivitamin After Bariatric Surgery

Understanding the Importance of Multivitamins Post-Surgery

  • The discussion focuses on selecting an appropriate multivitamin after bariatric surgery, emphasizing the need for specific vitamin and mineral doses.
  • It addresses whether standard multivitamins are sufficient to prevent deficiencies post-surgery or if additional supplements are necessary.

Criteria for Choosing a Multivitamin

1. Pharmaceutical Form

  • The first criterion is the pharmaceutical form of the vitamins and minerals in the supplement, which affects absorption rates.
  • Various forms include capsules (soft gel, hard), tablets, liquids, effervescent forms, and drops; each has different absorption characteristics.

2. Nutrient Format

  • The second criterion involves examining how vitamins and minerals are formulated within the multivitamin; not just quantity matters but also bioavailability.
  • For example, iron in ferrous sulfate may absorb poorly compared to bisglycinate iron, which is gentler on the stomach and better absorbed.

3. Concentration of Nutrients

  • The third criterion is nutrient concentration; bariatric patients often require higher amounts of certain vitamins and minerals due to increased needs post-surgery.
  • Standard pharmacy multivitamins may not meet these heightened requirements effectively.

Ideal Pharmaceutical Forms for Bariatric Patients

Recommended Formats

  • Hard capsules are preferred as they dissolve quickly in the stomach, releasing nutrients efficiently for absorption.
  • Other acceptable formats include liquid supplements or powders that can be mixed into drinks; these forms also facilitate quicker nutrient availability.

Additional Considerations

  • Chewable or dissolvable options can enhance nutrient release starting from oral contact with moisture.

Nutrient Absorption Post-Bariatric Surgery

Importance of Rapid Nutrient Release

  • The rapid availability of nutrients for absorption is crucial after bariatric surgery to ensure effective nutrient uptake.
  • Delayed release of vitamins and minerals can lead to poor absorption, resulting in ineffective supplementation. This could result in "vitamin-rich stool."

Pharmaceutical Forms to Avoid

  • Tablets are less ideal for bariatric patients due to their rigid structure, which delays nutrient release compared to other forms like powders or liquids.
  • The solid nature of tablets means they dissolve slowly, which can hinder nutrient absorption, especially in bypass patients who have altered digestive pathways.

Challenges with Tablet Absorption

  • Bariatric patients often have reduced stomach acid, which further complicates the dissolution and absorption of tablet-based supplements.
  • In cases where iron is encapsulated within a tablet matrix, it may not be fully released for absorption due to the structural integrity of the tablet during digestion.

Research on Supplement Efficacy

  • Studies indicate that switching from tablets to effervescent or chewable forms significantly improves nutrient efficacy in bariatric patients without altering dosage or active ingredients.
  • It’s essential for patients on medications (like thyroid treatments) in tablet form to consult their doctors regarding potential absorption issues before making changes.

Soft Gel Capsules Considerations

  • Soft gel capsules may not be suitable for bypass patients due to their oily content, which can complicate fat digestion and vitamin extraction post-surgery.

Bariatric Surgery and Nutrient Absorption

Importance of Nutrient Form in Multivitamins

  • The absorption of nutrients post-bariatric surgery may differ based on the form of the nutrient; powdered forms may be more effective than hard capsules.
  • When selecting a multivitamin, it's crucial to consider not just the quantity of vitamins and minerals but also their active forms for better absorption.
  • Active forms of vitamins, such as folic acid (vitamin B9), do not require activation by the body, allowing immediate utilization for essential functions like DNA synthesis.

Activated Forms of Vitamins

  • Folic acid must be in its activated form (methylfolate) to effectively support critical bodily functions, especially during pregnancy for neural tube development.
  • Some high-quality multivitamins contain methylfolate instead of inactive folic acid, ensuring better availability for the body’s use.
  • Individuals with genetic disorders that hinder folic acid activation need to supplement with already activated forms to avoid deficiencies.

Vitamin B12 Activation

  • Similar to folic acid, vitamin B12 should ideally be consumed in its active form (methylcobalamin), which is often indicated on product labels.
  • Checking ingredient lists can help identify if vitamins are present in their active forms; look for terms like "methylfolate" rather than just "folic acid."

Mineral Absorption Considerations

  • Minerals should also be in chelated forms—bound to proteins—to enhance absorption through specific channels rather than competing with each other.
  • Chelated minerals like iron or magnesium are absorbed more efficiently because they bypass competition among minerals that share similar absorption pathways.

Implications for Supplement Quality

  • Non-chelated mineral supplements may lead to poor absorption rates due to competition between minerals like calcium and iron.

Understanding the Importance of Methylfolate and Vitamin Supplementation

The Role of Methylfolate in Red Blood Cells

  • Methylfolate increases concentrations within red blood cells, crucial for preventing specific types of anemia characterized by enlarged red blood cells.

Significance of Folic Acid During Pregnancy

  • Active methylfolate is more effectively transported from mother to fetus, essential for neural tube development in infants. This vitamin is vital for women trying to conceive or who are already pregnant.

Risks Associated with Inactive Folic Acid

  • Supplementing with active forms like methylfolate prevents toxic accumulation of inactive folic acid in the bloodstream, which can be harmful, especially for those with genetic activation dysfunctions.

Consequences of Folic Acid Deficiency

  • Insufficient folic acid can hinder DNA synthesis and protein construction within cells, emphasizing the need for adequate supplementation.

Guidelines for Bariatric Patients' Vitamin Intake

  • Specific vitamin and mineral concentrations must be tailored for bariatric patients; guidelines have been established based on scientific studies to ensure optimal health post-surgery.

Recommended Daily Allowances for Key Vitamins

Vitamin B1 (Thiamine)

  • Recommended daily intake ranges from 12 to 50 mg; this dosage is preventive rather than therapeutic.

Vitamin B12 (Cobalamin)

  • For sleeve surgery: 300 to 500 mcg/day; bypass surgery: 600 to 1000 mcg/day. Preferably use active forms like methylcobalamin but cianocobalamin is also effective.

Vitamin B9 (Folic Acid)

  • Post-bariatric surgery requires a daily intake of 600 to 1000 mcg of active methylfolate to prevent deficiencies.

Vitamin C Requirements

  • Basic requirement is between 100 to 200 mg/day; smokers may need an additional 30 to 200 mg due to increased oxidative stress from smoking.

Additional Vitamins and Their Dosages

Vitamin D and E Recommendations

  • Suggested intake for vitamin D ranges up to 3,000 IU per day. For vitamin E: bypass patients should take between 25 and 30 mg while sleeve patients require about 15 to 30 mg daily.

Importance of Vitamin K

Nutritional Guidelines for Bariatric Surgery

Vitamin K Requirements

  • The recommended daily intake of Vitamin K1 is between 90 to 120 mg, while Vitamin K2 should be around 60 to 90 micrograms.
  • Multi-vitamins typically contain Vitamin K1, whereas products like Protein 3E1 focus on both bone and muscle health by including Vitamin K2, which aids in calcium retention and bone mineralization.

Vitamin A Dosage

  • For patients undergoing sleeve gastrectomy, the required dosage of Vitamin A is between 1000 to 1500 micrograms; for gastric bypass, it increases to about 3000 micrograms.
  • Both micrograms (mcg) and International Units (UI) are used interchangeably: 1500 mcg equals approximately 5000 UI, and 3000 mcg equals about 10,000 UI.

Limitations of Multivitamins

  • Most vitamins can be adequately supplied through a multivitamin except for B1 (thiamine) and B12 (cobalamin), due to regulatory limits set by Anvisa in Brazil on maximum nutrient dosages in supplements.
  • For thiamine, the maximum allowed dosage is capped at 2.02 mg per day; for B12, it's limited to a maximum of 9.94 micrograms per day—far below the necessary amounts for bariatric patients.

Supplementation Strategies

  • To address deficiencies in B1 and B12 post-surgery, additional supplementation is necessary alongside a good multivitamin regimen. Commonly prescribed options include Citoneurin (which contains B12, B6, and B1).
  • Dosage recommendations vary: one tablet weekly for bypass patients or every two weeks based on blood tests; sublingual forms like "12em" can also be utilized specifically for vitamin B12 supplementation.

Mineral Requirements Post-Surgery

Calcium Intake

  • Bariatric patients should aim for a total calcium intake of between 1000 to 1500 mg daily from both diet and supplements; citrate form is preferred due to better absorption compared to carbonate form.

Iron Needs

  • Preventive iron supplementation should range from 60 to 120 mg daily for menstruating women and around 18 mg daily for men/non-menstruating individuals; bisglycinate iron is favored due to its superior absorption profile with less gastrointestinal discomfort.

Other Essential Minerals

  • Selenium intake should be between 55 to 100 micrograms per day using selenomethionine or selenocysteine forms.
  • Zinc requirements are set at approximately 15 to 22 mg daily using bisglycinate zinc.
  • Copper needs differ: at least 1 mg post-sleeve surgery and 2 mg post-bypass surgery using gluconate or bisglycinate forms.

Magnesium and Iron Supplementation After Bariatric Surgery

Importance of Magnesium

  • Magnesium should be taken in chelated forms, such as bisglycinate or organic forms like citrate or malate for better absorption.
  • Avoid magnesium oxide and other non-chelated salts due to potential gastrointestinal issues, including diarrhea and discomfort.

Minerals Not Sufficient in Multivitamins

  • Certain minerals, specifically iron and calcium, are not adequately provided by multivitamins post-bariatric surgery.
  • Women who menstruate require higher iron intake (60 to 120 mg daily) due to reduced absorption after surgery and menstrual losses.

Iron Supplementation Options

  • Complete Bar offers a high-quality form of iron (ferrous bisglycinate), adhering to Anvisa's maximum dosage regulations.
  • Additional iron supplements available in Brazil include Neutrofer (ferric glycinate), Noripurum, Dexfer (ferric polymaltose), Fisiogen, and Hemolipo (ferric pyrophosphate).

Vitamin C for Iron Absorption

  • Ferric forms of iron require vitamin C for optimal absorption; combining them with vitamin C is essential.
  • Effervescent vitamin C tablets can be used effectively; consult a nutritionist on proper dosing.

Forms of Iron Supplements

  • Avoid tablet forms of iron due to poor absorption rates post-surgery; liquid or chewable options are preferred.
  • Ferrous forms do not need vitamin C for absorption but are less commonly found; the best option is ferrous bisglycinate from Complete Bar.

Calcium Needs Post-Bariatric Surgery

Calcium Requirements

  • Daily calcium needs range from 1000 to 1500 mg, which cannot fit into standard multivitamin formulations due to space constraints.

Separate Calcium Supplementation

  • High calcium content could interfere with the absorption of other nutrients like iron if included in multivitamins.

Calcium Supplementation and Bone Health

Importance of Calcium Forms

  • The chewable form of calcium, specifically in the citrate format, is better absorbed as it requires less stomach acid to dissolve and reach the absorption channel in the intestine.
  • Citrate not only provides calcium but also benefits bone health by helping retain calcium within bones, reducing the risk of bone loss post-bariatric surgery.

Nutritional Composition of Supplements

  • The Prosca KM supplement contains calcium in citrate form, along with Vitamin K2 which supports bone health. It may also include magnesium that aids in attracting calcium to bones.
  • Recommended daily intake for calcium is between 1000 mg to 1500 mg from both diet and supplements; individual needs depend on dietary intake.

Tracking Calcium Intake

  • Users can track their nutrient intake using apps like My Fitness Pal or Fat Secrets, or through online searches for specific food items' calcium content.
  • Many patients typically consume around 500 to 600 mg of calcium through diet (dairy products), often needing additional supplementation to meet daily requirements.

Supplementation Strategies

  • For example, each chewable Prosca KM candy provides 250 mg of calcium; two candies can fulfill a significant portion of daily needs.
  • The UE Protein 3-in-1 supplement includes 600 mg of citrate-calcium per dose along with protein and other nutrients beneficial for muscle and bone health.

Combining Supplements for Optimal Nutrition

  • Using Protein 3-in-1 can eliminate the need for extra calcium supplementation while providing essential nutrients like Vitamin K2 and magnesium.
  • When combined with a multivitamin containing Vitamin K1, users receive adequate support for both coagulation and bone health.

Evaluating Multivitamins: A Practical Approach

Criteria for Choosing Multivitamins

  • Evaluating multivitamins involves checking three criteria: pharmaceutical form, nutrient forms (e.g., chelated), and nutrient quantities present in the product.

Common Issues with Popular Brands

  • Centrum is highlighted as a common multivitamin that fails on several criteria due to its tablet form which delays nutrient release.

Absorption Challenges

  • The use of hard tablets can lead to poor absorption as nutrients may remain trapped within the tablet matrix during digestion.

Nutrient Form Concerns

Nutritional Needs Post-Bariatric Surgery

Importance of Active Nutrient Forms

  • Emphasizes that folic acid must be in its active form, methylfolate, for effective absorption. Regular folic acid is insufficient for the body’s needs.

Inadequate Nutrient Quantities in Multivitamins

  • Discusses the recommended daily intake of Vitamin A (1500 to 3000 microg), highlighting that a common multivitamin only provides 510 microg, which is inadequate.
  • Notes that post-bariatric surgery requires higher doses of Vitamin D (2000 to 3000 IU), while a typical multivitamin contains only 5 mg.
  • Highlights the need for increased Vitamin C (100 to 200 mg) and B1 (12 to 50 mg), with standard supplements falling short at just 45 mg and 1.2 mg respectively.

Critical Deficiencies in Common Supplements

  • Points out that iron levels are significantly low (7 mg vs. required 60-120 mg for menstruating women).
  • Mentions zinc requirements post-surgery are between 15 to 22 mg, but many supplements provide only around 7 mg.

Comparison of General vs. Bariatric-Specific Vitamins

  • Stresses the importance of selecting high-quality multivitamins specifically designed for bariatric patients rather than general options which may not meet their unique needs.
  • Critiques Lavitan as an example of a popular vitamin lacking sufficient nutrients and quantities necessary for post-surgery recovery.

Analysis of Complete Bar Multivitamin

  • Introduces "Completar," a specially formulated multivitamin designed with bariatric patients' needs in mind, ensuring adequate nutrient forms and concentrations.
  • Lists over 20 essential nutrients included in Completar, emphasizing its comprehensive formulation compared to other brands like Lavitan.

Adequate Dosages in Completar

  • States that Completar provides close to the maximum allowable dose of Vitamin A (2622 microg), crucial for preventing deficiencies post-surgery.

Nutritional Supplementation for Bariatric Surgery Patients

Essential Vitamins and Minerals Post-Surgery

  • The Brazilian multivitamin is crucial for bariatric surgery patients, requiring an extra dose of folic acid. The recommended dosage ranges from 400 to 1000 micrograms, with the Complete product providing 614 micrograms.
  • Vitamin B12 and B1 also require additional doses in any multivitamin. Iron content in the Complete Bar is significantly higher at 34.31 mg compared to other brands like Lavitano and Centrum.
  • Calcium intake cannot be adequately met through a multivitamin due to high required doses; it interferes with absorption of other nutrients when combined.
  • A separate calcium supplement is recommended, as the Proten product contains sufficient calcium, making it a perfect combination with the multivitamin.

Tailored Supplementation Strategies

  • For menstruating women post-surgery, a quality multivitamin along with iron, vitamin B12, B1, calcium with vitamin D, and protein supplementation is essential.
  • Non-menstruating individuals also need a quality multivitamin plus additional supplements including vitamin B12, B1, calcium with vitamin D, and protein.