A prospective epidemiologic study found a threshold level for serum vitamin B12, below which an increased risk of breast cancer among postmeno-pausal women was observed.
Is vitamin B-12 good for breast?
Special Precautions & Warnings: Pregnancy and breast-feeding: Vitamin B12 is LIKELY SAFE for pregnant or breast-feeding women when taken by mouth in the amounts recommended. The recommended amount for pregnant women is 2.6 mcg per day. Breast-feeding women should take no more than 2.8 mcg per day.
Does B12 cause tumors?
It does not suggest that B12 supplementation can cause cancer.
What disease does B12 cause?
Vitamin B-12 deficiency anemia is a condition in which your body doesn’t have enough healthy red blood cells because of a lack of vitamin B-12. This vitamin is needed to make red blood cells. These cells carry oxygen to all parts of your body.
Can B12 cause damage?
People with this type of anemia often do well with treatment. Long-term vitamin B12 deficiency can cause nerve damage. This may be permanent if you do not start treatment within 6 months of when your symptoms begin. Vitamin B12 deficiency anemia most often responds well to treatment.
Can you take too much B12?
Since B12 is a water-soluble vitamin, it’s generally considered safe, even at high doses. No Tolerable Upper Intake Level (UL) has been established for B12, due to its low level of toxicity. UL refers to the maximum daily dose of a vitamin unlikely to cause adverse side effects in the general population.
Does B12 go through breast milk?
Vitamin B12 is transferred through the placenta to the fetus during pregnancy and through breast milk after birth. Infants who drink breast milk from a mother who consumes adequate amounts of vitamin B12 or infants who drink infant formula, will receive enough vitamin B12.
What cancers cause high B12 levels?
Other studies focusing on specific cancers have shown a strong association between elevated B12 levels and liver cancers (OR 3.3 [95%CI: 1.1–10.4] for hepatocellular carcinomas and OR 4.7 [95%CI: 1.2–17.9] for other liver cancers) , a moderate association with prostate cancer (OR 1.1 [95%CI: 1.0–1.2]) , and no …
What cancers cause high B12?
Elevated B12 has been associated with various diseases1,5,6: liver diseases7,8,9,10, myeloid blood malignancies10,11,12,13, chronic renal failure3,14, autoimmune or inflammatory diseases3, Gaucher disease15.
What are the symptoms of high B12 levels?
High doses of vitamin B-12, such as those used to treat a deficiency, might cause:
- Nausea and vomiting.
- Fatigue or weakness.
- Tingling sensation in hands and feet.
What happens when you stop taking B12?
If a person stops consuming the vitamin, the body’s stores of this vitamin usually take about 3 to 5 years to exhaust. People should not take high doses of vitamin B12 as a cure-all, but otherwise the vitamin does not appear to be toxic; consuming excess amounts of B12 is not recommended.
How long does it take for B12 to get out of your system?
Generally speaking, around 50 to 98% of the vitamin B12 taken is excreted from the body 48 hours after injection. Other studies have shown that vitamin B12 has a half-life of around six days in the blood, which means that it would take six days before half of the administered amount is excreted from the body.
What does low B12 feel like?
B12 deficiency can cause a variety of symptoms, including fatigue, headaches, depression, pale or yellow skin, mental impairment, and pain and inflammation in the mouth and tongue. Many of the symptoms caused by low B12 levels are not specific to B12 deficiency, which can cause the condition to go undetected.
What are the benefits and side effects of vitamin B12?
Vitamin B12 benefits include forming red blood cells, preventing dementia, and reducing birth defects. Vitamin B12 is found in foods like meat, eggs, dairy, and fish. Side effects of B12 are rare but can include headaches, anxiety, and nausea.
Is it OK to take 1000 mcg of B12 a day?
The recommended dose for treating vitamin B12 deficiency is 1000 mcg daily. The recommended dose for preventing vitamin B12 deficiency is 1500 mg or 2500 mcg (sublingual tablets) daily. The dose for treating hyperhomocysteinemia is 400 mg daily in combination with folic acid.
What are side effects of B12 shots?
Pain/redness at the injection site, mild diarrhea, itching, or a feeling of swelling all over the body may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.