Best Vitamins For Gastric Sleeve Patients

After gastric sleeve surgery, it is crucial for patients to take specific vitamins and mineral supplements to ensure a healthy recovery and continued weight loss. At GST Clinic, we provide tailored vitamin protocols to ensure our patients receive all the necessary nutrients. In the postoperative period, we particularly recommend supplements such as vitamin B12, iron, calcium citrate, vitamin D, and a comprehensive multivitamin. These vitamins help prevent deficiencies that can occur due to the reduced stomach size and altered nutrient absorption post-surgery. At GST Clinic, we offer personalised vitamin supplementation plans to support our patients in leading healthy and balanced lives.

The gastric sleeve, also known as sleeve gastrectomy, is a popular weight-loss surgery that involves removing a portion of the stomach, resulting in a smaller, sleeve-shaped stomach. While this procedure can lead to significant weight loss, it also changes how your body absorbs nutrients. Therefore, it is crucial for gastric sleeve patients to take specific vitamins and supplements to prevent deficiencies and maintain overall health.

Table of Contents

    Best Vitamins for Gastric Sleeve Patients

    1. Vitamin B12

    Vitamin B12 is crucial for various bodily functions, including nerve health, red blood cell production, and DNA synthesis. After gastric sleeve surgery, absorption of vitamin B12 may be compromised due to changes in the digestive system. Therefore, supplementation is essential. Here are some important points about vitamin B12:

    • Recommended Intake: Typically, patients should aim for around 1,000 mcg of vitamin B12 per day.
    • Sources: B12-rich foods include fish, poultry, eggs, and fortified cereals. However, supplementation is often necessary.

    2. Calcium

    Calcium is essential for bone health, muscle function, and blood clotting. Gastric sleeve patients must supplement with calcium to prevent deficiencies. Here’s what you need to know:

    • Recommended Intake: Aim for approximately 1,500 mg of calcium daily.
    • Sources: Dairy products, leafy greens, and fortified foods are good natural sources. However, many patients require supplements.

    3. Iron

    Iron is vital for oxygen transport and energy production. While some bariatric multivitamins contain iron, others may not. If your multivitamin lacks iron, consider additional supplementation. Key points about iron:

    • Recommended Intake: The exact amount varies, but most patients benefit from extra iron.
    • Sources: Iron-rich foods include red meat, poultry, legumes, and fortified cereals.

    4. Vitamin D

    Vitamin D plays a crucial role in bone health, immune function, and overall well-being. Gastric sleeve patients are at risk of vitamin D deficiency due to reduced sun exposure and altered absorption. Consider the following:

    • Recommended Intake: Aim for approximately 3,000 IU (international units) of vitamin D daily.
    • Sources: Sun exposure, fatty fish, fortified dairy products, and supplements.

    5. Vitamin C

    Vitamin C supports wound healing, collagen production, and immune function. While it’s not specific to gastric sleeve patients, maintaining adequate vitamin C levels is essential. Here’s what you should know:

    • Recommended Intake: Aim for a balanced diet rich in fruits and vegetables.
    • Sources: Citrus fruits, strawberries, bell peppers, and leafy greens.

    Additional Tips:

    • Probiotics: Consider probiotics to support gut health.
    • Consult Your Bariatric Team: Always follow your bariatric team’s recommendations regarding vitamins and supplements.


    Remember that individual needs may vary, so personalized advice from your healthcare provider is crucial.

    You can reach us 24/7 for your questions via Obesity Information Line

    Why Are Vitamins Important After Gastric Sleeve Surgery?

    Post-surgery, the reduced stomach size limits the amount of food you can eat, which means you might not get all the necessary nutrients from your diet alone. Additionally, the surgery can affect how well your body absorbs certain vitamins and minerals. To prevent deficiencies, it’s essential to take the right supplements.

    Key Vitamins and Supplements for Gastric Sleeve Patients

    • Multivitamin

      • Why: A comprehensive multivitamin ensures you get a broad spectrum of essential vitamins and minerals.
      • Recommended Dosage: Take a high-potency, chewable or liquid multivitamin twice daily.
    • Vitamin B12

      • Why: The surgery can reduce the production of stomach acid, which is necessary for absorbing vitamin B12 from food.
      • Recommended Dosage: 500-1000 micrograms of sublingual vitamin B12 daily or a monthly injection.
    • Iron

      • Why: Iron deficiency is common due to decreased stomach acid and reduced iron intake from food.
      • Recommended Dosage: 45-60 mg of elemental iron daily, preferably in a form that includes vitamin C to enhance absorption.
    • Calcium Citrate

      • Why: Calcium is vital for bone health, and the citrate form is better absorbed in the reduced-acid environment of the stomach post-surgery.
      • Recommended Dosage: 1200-1500 mg daily, divided into two or three doses.
    • Vitamin D

      • Why: Vitamin D helps with calcium absorption and is crucial for bone health and immune function.
      • Recommended Dosage: 3000 IU daily, or as advised by your healthcare provider based on blood levels.
    • Folate (Folic Acid)

      • Why: Important for cell division and the production of DNA. Deficiency can lead to anaemia and other health issues.
      • Recommended Dosage: 400-800 micrograms daily.
    • Thiamine (Vitamin B1)

      • Why: Essential for energy metabolism and nerve function. Deficiency can cause serious neurological issues.
      • Recommended Dosage: 12-50 mg daily.
    • Zinc

      • Why: Important for immune function, wound healing, and protein synthesis.
      • Recommended Dosage: 8-11 mg daily for adults, with higher needs in some cases.
    • Vitamin A

      • Why: Supports vision, immune function, and skin health. Deficiency can occur due to malabsorption.
      • Recommended Dosage: 5000-10000 IU daily.
    • Omega-3 Fatty Acids

      • Why: Supports heart health and reduces inflammation. Gastric sleeve patients might not consume enough omega-3s through diet alone.
      • Recommended Dosage: 1000 mg of EPA and DHA daily.

    Tips for Taking Vitamins After Gastric Sleeve Surgery

    • Choose High-Quality Supplements: Look for reputable brands that offer high-quality, easily absorbable forms of vitamins and minerals.
    • Chewable or Liquid Forms: These are often easier to digest and absorb compared to tablets.
    • Regular Monitoring: Have your vitamin and mineral levels checked regularly by your healthcare provider to adjust dosages as needed.
    • Stay Hydrated: Proper hydration helps with nutrient absorption and overall health.
    • Consistent Routine: Establish a consistent daily routine for taking your vitamins to ensure you 
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    Vitamins After Gastric Sleeve Surgery Dietary Considerations

    While supplements are crucial, it’s also important to focus on a nutrient-rich diet. Here are some dietary tips for gastric sleeve patients:

    1. Protein-Rich Foods: Incorporate lean meats, fish, eggs, dairy, and plant-based proteins to support muscle maintenance and overall health.
    2. Fruits and Vegetables: Aim for a variety of colourful fruits and vegetables to ensure a broad intake of vitamins and minerals.
    3. Whole Grains: Choose whole grains over refined grains for added fibre and nutrients.
    4. Healthy Fats: Include sources of healthy fats, such as avocados, nuts, seeds, and olive oil.

    Gastric sleeve surgery can be life-changing, offering significant weight loss and improved health. However, to maintain these benefits and avoid nutrient deficiencies, it’s essential to take the right vitamins and supplements. Regular monitoring and a balanced diet are also crucial components of your post-surgery health regimen. Always consult with your healthcare provider to tailor your vitamin and supplement intake to your specific needs.



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    Careen L.
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    “Very good before and aftercare. Lots of pre and post op information and support. Team were responsive to any issues that arose and made me feel safe. Each day that I was in hospital the team came to check on me (sometimes 3 times in a day), in addition to the core checks by the nurses. Pre and post op I was put in a WhatsApp group with the surgical team for additional and personal support. There was also a group for other post surgery people to support and uplift each other. Dr Hasan and team gave me such care that without reservation I give my recommendation. Even now 3 years later, I'm still having messages of support and encouragement from the patient liaison Tugce.”

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    “I have just returned from having a gastric sleeve. I cannot fault the care and service I've had from the whole team at Dr. HE obesity clinic. I was given all the information I needed before I went and all my questions were answered, no matter what time I messaged. When I arrived at the hospital everyone was so friendly and caring. The hospital was clean and hygienic. My room was cleaned every day while I was there. I felt listened too and cared for throughout my stay. Everyone is so helpful. Another positive is they are there for you when you return back to the UK, to answer any questions you may have and support you when needed. Excellent service all round.”

    Sarah J.
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    "After struggling with my weight for years, I decided to try the Allurion Balloon at GST Clinic in Turkey. The cost was much more affordable than back home, and the care I received was top-notch. From the moment I arrived, the team made me feel comfortable and informed. Three months later, I've lost a significant amount of weight and feel fantastic. I highly recommend the Allurion Gastric Balloon treatment here!"

    Michael A.
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    "I had my Allurion Gastric Balloon placed at GST Clinic, and it was the best decision I ever made. The procedure was quick, and there was no downtime. The staff were incredibly supportive, providing me with all the guidance I needed for a successful treatment. The cost was transparent, and there were no hidden fees. It’s been a life-changing experience!"

    Emily T.
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    "Choosing the Allurion Balloon from GST Clinic was a pivotal moment in my weight loss journey. The cost of the Allurion Balloon in Turkey was reasonable, and the service at the clinic was exceptional. They provided a comprehensive package that included follow-up care and nutritional advice, which really helped me make the most out of the 16 weeks with the balloon."

    David P.
    David P.

    "The Allurion Balloon cost in Turkey at GST Clinic was worth every penny. The team not only helped me with the medical procedure but also supported me emotionally throughout my journey. Losing weight has never felt this manageable, and I have GST Clinic to thank for this new lease on life."

    Olivia G.
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    "My experience with the Allurion Balloon at GST Clinic was nothing short of amazing. The staff were professional and caring, and the price of the treatment was clear from the start. The balloon helped me control my eating habits, and I saw results faster than I anticipated. I would definitely recommend GST Clinic to anyone considering the Allurion Balloon in Turkey."


    FAQ: Best Vitamins For Gastric Sleeve Patients

    After a gastric sleeve surgery, it is essential to take a comprehensive multivitamin, vitamin B12, iron, calcium citrate, and vitamin D. These supplements help prevent deficiencies and support overall health.

    Yes, it is crucial to take vitamin B12 after gastric sleeve surgery. The surgery reduces stomach acid, which is necessary for B12 absorption, making supplementation essential to prevent deficiency.

    Common vitamins that may be low after gastric sleeve surgery include vitamin B12, vitamin D, iron, calcium, and folate. Regular supplementation and monitoring are necessary to maintain adequate levels.

    Typically, patients should take their vitamins daily. A high-potency multivitamin is usually taken twice a day, while other supplements like B12, iron, and calcium should be taken as per your healthcare provider’s recommendation.

    It is generally recommended to space out the intake of certain vitamins to enhance absorption. For example, take calcium and iron supplements at different times of the day as they can interfere with each other’s absorption.

    Calcium citrate is recommended after gastric sleeve surgery because it is better absorbed in the low-acid environment of the stomach post-surgery. Adequate calcium is essential for bone health.

    Yes, chewable or liquid multivitamins are often recommended as they are easier to digest and absorb, especially immediately after surgery when your stomach is still healing.

    Taking an iron supplement and incorporating iron-rich foods into your diet can help. It’s also beneficial to take vitamin C with your iron supplement to enhance absorption.

    If you experience side effects such as nausea or constipation from your vitamins, consult your healthcare provider. They may adjust your dosage or suggest alternative forms of the supplements.

    It is advisable to have your vitamin levels checked every 3 to 6 months initially, and then annually, or as recommended by your healthcare provider. Regular monitoring helps to adjust supplementation and prevent deficiencies.

    You can reach us 24/7 for your questions via Obesity Information Line