How does gastric bypass surgery affect nutrient absorption?
After gastric bypass surgery, the surface area of the stomach is reduced to 10% of its original size . This not only affects the stomach's absorption capacity but also the absorption of nutrients in the small intestine. Although surgery is often seen as a healthy option for reducing calorie intake, it actually carries the risk of various nutritional deficiencies.
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Common nutritional deficiencies
Calcium deficiency
Insufficient stomach acid can hinder calcium absorption, especially calcium carbonate supplements. It is recommended to choose ionic or soluble electrolyte forms.
Iron deficiency
Stomach acid also affects iron absorption. Iron deficiency can lead to symptoms such as brittle nails and pica (eating things like ice or dirt).
Micromineral deficiency
Trace minerals such as zinc, selenium, iodine, and manganese are essential for protein synthesis and enzyme function. Zinc deficiency may lead to problems such as acne, white spots on nails, and hair loss.
Vitamin B deficiency
- Vitamin B1 : Deficiency may cause increased stress, difficulty sleeping, memory loss, and even eye muscle incoordination.
- Vitamin B12 : Associated with anemia, chronic fatigue, and nervous system problems.
Protein malabsorption
Insufficient protein absorption can affect the synthesis of neurotransmitters, mood, hormones, collagen, ligaments, and tendons, leading to loose skin and weak muscles.
Fat-soluble vitamin deficiency
Limited gallbladder function can affect the absorption of vitamins A , D , E , and K2 .
- Vitamin A : Night vision problems
- Vitamin D : Bone pain and calcium absorption
- Vitamin E : Heart and Hormonal Function
- Vitamin K2 : Transports calcium to bones, preventing calcification of joints and arteries.
Folic acid deficiency
Folic acid participates in a variety of enzyme reactions and affects proteins, blood sugar, digestion, and neurotransmitters. A deficiency may lead to low mood.
Recommendations for supplementing nutrition
It is recommended to choose easily absorbed nutritional forms, such as soluble trace minerals and B vitamins from natural yeast . Avoid synthetic supplements, as their effects differ from those of natural sources.
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Conclusion: Postoperative nutritional management should not be neglected.
While gastric bypass surgery can aid in weight loss, the resulting nutritional deficiencies should not be ignored. Choosing high-quality, natural nutritional supplements is crucial for maintaining health and minimizing postoperative side effects. Understanding your body's needs is one of the keys to a successful surgery.
YouTube source: https://www.youtube.com/watch?v=UKYOUvv8Jog
YouTube Column: Dr. Berger in Chinese Health knowledge
