Elevated b12 levels mayo clinic, . “Vitamin B12: Health Professional Fact Sheet. Tingling sensation in hands and feet. Our experts diagnose and treat the toughest medical challenges. ” Daily needs, food sources, deficiency notes, and safety context including lack of a UL. Nausea. Aug 13, 2025 · The recommended daily amount of vitamin B-12 for adults is 2. ” Lists side effects and cautions around higher-dose supplementation. Research health effects, dosing, sources, deficiency symptoms, side effects, and interactions here. ” Explains that high blood B12 can be Oct 24, 2023 · A urinalysis involves checking the appearance, concentration and content of urine. Having vitamin B-12 levels that are too high may raise the risk of getting cancer or breaking a hip. The right answers the first time Effective treatment depends on getting the right diagnosis. I asked my pharmacist if there was a brand with less B12. It also raises the risk of a serious complication of pregnancy that causes high blood pressure and other symptoms, called preeclampsia. Unusual urinalysis results often require more testing to find the source of the problem. Cleveland Clinic. Taking doses of vitamin B-12 might cause: Headache. Feb 1, 2026 · Taking this medicine for a long time may make it harder for your and your child's body to absorb vitamin B12. Having a surgical delivery. May 17, 2024 · My B12 is high too. Diarrhea. Nov 29, 2025 · B12 was elevated at 1707 (range for Lab Corp 232-1245), SGOT 58, elevated SGOT at 55 (0-40 range) Renal panel WNL - Abdominal ultrasound was negative. These conditions can threaten your life and your baby's life. Weakness. He told me not to worry…that too much B12 is not dangerous in a multivitamin because we don’t absorb more than 1% of it. That’s because researchers suspect having high levels might be a long-term health issue. For example, a urinary tract infection can make urine look cloudy instead of clear. Increased levels of protein in urine can be a sign of kidney disease. May 30, 2025 · High blood pressure and preeclampsia. I am very confused. Check the level of B12 in your multivitamin if you take one. 4 mcg and 10 to 12 mcg for older adults. One a Day Vitamins have over 1,000% of the recommended daily allowance. The world's best hospital Mayo Clinic is the No. Serious stomach conditions may occur while taking this medicine. Tell your doctor if you have concerns about this. Hypercobalaminemia (high serum vitamin B12 levels) is a frequent and underestimated anomaly. Oct 1, 2025 · High levels of vitamin B12 aren’t dangerous, but you still don’t want to have too much of this essential vitamin. Dec 19, 2023 · This is a condition called iron deficiency. Conditions that can cause inflammation include liver disease, rheumatoid arthritis and other inflammatory conditions, and overactive thyroid, called References & Sources NIH Office of Dietary Supplements. Biotin is a B vitamin supplement that also may be found in multivitamins. Learn more about our top-ranked specialties. I stopped the multivitamin, did some deep-dive research and feel that further testing needs to be done to evaluate the elevation of B12. Clinically, it can be paradoxically accompanied by signs of deficiency, reflecting a functional deficiency linked to qualitative abnormalities, which are related to defects in tissue uptake and action of vit … Vitamin B12 overview for health professionals. “High B12 Level: Symptoms & Causes. Repeat lab for f/u on 11/19/2025 Vitamin B12 was 1836. 1 hospital in the world according to Newsweek. Blood tests are particularly important for older adults because they may not have classic symptoms of hyperthyroidism. If a ferritin test shows high ferritin levels, it most often means swelling in the body, called inflammation. Iron deficiency can cause anemia. “Vitamin B-12. Nov 30, 2022 · A high level of T-4 and a low level of TSH is common in people with hyperthyroidism. Apr 19, 2025 · Excess B12 Posted by rheachi22 @rheachi22, Apr 19, 2025 I have high (above 2000) levels of B12 in my body not due to taking too much as I have went off of B12 six months ago and it is still at this level. Thyroid blood tests may give false results if you take biotin. Gestational diabetes raises the risk of high blood pressure. Mayo Clinic.
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