Allotro Labs Bariatric Women's Advanced Formula contains targeted doses of the vitamins and minerals most commonly depleted after bariatric surgery — delivered in bioavailable forms that your altered digestive system can actually absorb. Each daily serving is just 2 small liquid gel capsules.
Core Vitamins & Minerals
Vitamin B12 (as Methylcobalamin)
B12 deficiency affects approximately 17% of bariatric patients at follow-up, according to published research. We use methylcobalamin — the naturally occurring, bioavailable form of B12 — rather than the cheaper cyanocobalamin used by most competitors. Methylcobalamin doesn't require conversion by your liver, meaning your body can use it immediately. This matters enormously after bariatric surgery when your intrinsic factor production (needed for B12 absorption) may be reduced. B12 is essential for energy production, red blood cell formation, neurological function, and fighting the crushing fatigue that so many post-op women describe.
Iron
Iron is arguably the single most important mineral for women after bariatric surgery. Your body's ability to absorb iron is significantly reduced after procedures that bypass or restrict the duodenum — which is where most dietary iron is absorbed. Combine that with monthly menstrual blood loss, and women face a substantially higher risk of iron-deficiency anemia than men after the same surgery. Symptoms include extreme fatigue, shortness of breath, dizziness, cold hands and feet, and brittle nails. This formula includes iron specifically because many "bariatric multivitamins" inexplicably leave it out, forcing women to buy a separate supplement.
Vitamin D3 (Cholecalciferol)
Vitamin D3 is the form your body produces naturally from sunlight — and it's far more effective than D2 (ergocalciferol) at raising and maintaining your blood levels. After bariatric surgery, vitamin D absorption is impaired because fat-soluble vitamins require adequate fat digestion, which is disrupted by the procedure. Research shows D deficiency prevalence of 35-62% in bariatric patients. D3 is critical for calcium absorption and bone health (especially during rapid weight loss when bone density can decline), immune function, and mood regulation. Many post-op women report improvements in mood stability after correcting their D levels.
Folate
Folate is essential for DNA synthesis, cell division, and red blood cell production. It works synergistically with B12 — a deficiency in either can cause megaloblastic anemia. For women of childbearing age, adequate folate is critical to prevent neural tube defects in potential pregnancies. After bariatric surgery, folate absorption is reduced because the primary absorption site (the proximal small intestine) may be bypassed or reduced. The cellular repair demands of post-surgical healing make adequate folate even more important.
Magnesium
Magnesium is one of the most underappreciated minerals after bariatric surgery. It's involved in over 300 enzymatic reactions in your body — including energy production, muscle function, nerve signaling, and blood sugar regulation. Magnesium deficiency can manifest as muscle cramps, restless legs, insomnia, anxiety, and heart palpitations. After surgery, reduced food intake combined with impaired absorption makes supplementation essential. Magnesium also supports bone health by working alongside vitamin D3 and calcium.
Zinc
Zinc deficiency is commonly reported after bariatric surgery and can contribute to hair loss, poor wound healing, impaired immune function, altered taste perception, and skin problems. Zinc works closely with iron and copper in the body, and adequate supplementation is particularly important during the rapid weight loss phase when nutrient demands are highest. It also plays a key role in immune cell function — helping your body fight infections during the recovery period.
42-Fruit-and-Vegetable Superfood Blend
After bariatric surgery, your stomach capacity is dramatically reduced. Even women who eat meticulously balanced diets struggle to consume the recommended daily servings of fruits and vegetables. This proprietary blend of 42 fruit and vegetable concentrates provides phytonutrients, antioxidants, and micronutrients that help bridge the gap between what you can eat and what your body needs.
The superfood blend is a differentiator you won't find in most competing bariatric vitamins — and it matters because whole-food-derived phytonutrients work synergistically with isolated vitamins and minerals to support overall health, cellular repair, and immune function.
The Liquid Gel Capsule Delivery System
The delivery format is just as important as what's inside. Large, chalky tablets are a terrible choice after bariatric surgery. They can sit in a smaller stomach, cause nausea, and break down too slowly for nutrients to be absorbed before they pass through the reduced digestive tract.
Allotro Labs uses liquid-filled gel capsules — the liquid interior is already partially broken down before it reaches your stomach, leading to faster dissolution, quicker absorption, and dramatically less digestive discomfort. The capsules themselves are small enough to swallow comfortably even if you have difficulty with larger pills.