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What is B12 not good for?

However, supplementing with excessively high levels of B12 has been linked to some negative side effects. Several studies have shown that megadoses of the vitamin can lead to outbreaks of acne and rosacea, a skin condition that causes redness and pus-filled bumps on the face.

healthline.com - Can Vitamin B-12 Cause Side Effects? - Healthline

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How your body uses B-12 Everyone needs vitamin B-12, and most people get enough through their diet. However, it’s important to know what side effects occur when you take too much. Vitamin B-12 is water-soluble and absorbed in the intestines. After it’s absorbed, it’s used to make DNA and red blood cells. Vitamin B-12 that isn’t being used is stored in the liver. But if you take supplements, you might ingest more than your body needs. What are the side effects of vitamin B-12? Oral vitamin B-12 is safe to take at recommended doses for healthy people. Injectable vitamin B-12, which is used to treat significant deficiencies, can cause the following side effects: mild diarrhea

itching

skin rash

headache

dizziness

nausea

vomiting

pulmonary edema and congestive heart failure early in treatment

vein thrombosis

sensation of swelling

polycythemia vera (rare, slow growing blood cancer) Vitamin B-12 can cause very rare but serious allergic reactions (anaphylaxis). This includes swelling of the face, tongue, and throat, and difficulty swallowing and breathing. If this occurs after you take vitamin B-12, call 911 or your local emergency services immediately. Some agents are linked to reduced absorption or serum levels of vitamin B-12. You may need vitamin B-12 supplements if you take any of the following: colchicine

metformin

proton pump inhibitors

vitamin C

chloramphenicol

H2 blockers

aminosalicylic acid Folic acid supplements may interfere with vitamin B-12. Be sure to tell your doctor if you take folic acid. You may need to take vitamin B-12 separately from the above drugs and supplements — say, one in the morning and one at night — so you can get the full dose of vitamin B-12. Don’t take vitamin B-12 supplements if you have sensitivities or allergies to vitamin B-12, cobalt, and any other ingredients. Vitamin B-12 is safe to take in recommended dosages if you’re pregnant or breastfeeding. When should you see a doctor? If you notice any adverse effects after you start taking vitamin B-12 supplements, you should discontinue use immediately. Seek medical attention if your symptoms get worse or are severe. You can consult your doctor to establish an appropriate dose if it’s determined that you don’t get enough B-12 from food sources. What’s the correct dosage of vitamin B-12? According to the National Institutes of Health , the recommended dietary amounts (RDAs) are as follows: 2.4 micrograms (mcg) daily for ages 14 years or older

2.6 mcg daily for pregnant women

2.8 mcg daily for breastfeeding women If you’re over the age of 50, you should try to get your RDA by eating foods with B-12 or by taking a supplement containing 25 to 100 mcg of B-12. Foods with vitamin B-12 include: eggs

cheese

fish

shellfish

liver

kidney

red meat

How are vitamin B-12 side effects treated? See your doctor if you have bothersome side effects that don’t go away once you stop taking the supplements. Avoid taking supplements if possible, and try to get B-12 from food sources.

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Which tea burns fat the most?

green tea The most popular and well-studied tea for weight loss is definitely green tea. It's filled with antioxidants called catechins, including a substance called epigallocatechin gallate (EGCG), which is believed to increase metabolism and help burn fat.

prevention.com - 8 Best Teas for Losing Weight and Boosting Your Metabolism

The next time you pop into your favorite coffee shop, consider skipping the pumpkin spice latte, caramel macchiato, or cold brew iced coffee and go for a soothing, steaming cup of tea instead. Because in addition to tea’s well-known power to soothe sore throats and even help prevent cancer and diabetes, it may help you reach your weight loss goals. "Drinking tea may support weight loss or weight maintenance because it fills the void of beverages that are high in sugar and calories," says Josh Axe, D.N.M., founder of Ancient Nutrition. "When you switch out flavored lattes, coffee with added cream and sugar, and sugary sodas or juices and replace them with tea, you are cutting a massive amount of calories a day." (We too, love Starbucks' salted caramel mocha, but a grande packs a whopping 420 calories compared to zero in their wellness tea!) Aside from being calorie-friendly (unsweetened tea is basically plant-flavored water), certain teas have antioxidant-rich compounds that may encourage weight loss, while also touting other health benefits such as improved sleep. However, it's worth noting that further research is needed to confirm the exact relationship between tea and losing weight. With that being said, enjoying a daily cup of steeped goodness definitely won't to do you any harm, and can certainly keep sweet coffee cravings at bay. So, whether you enjoy them hot or iced, here are the teas that may provide the biggest boosts, plus some recommended picks to shop.

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