Vitamin B12 User Reviews & Ratings

• Sun...
• Taken for less than 1 month
• October 8, 2018

For B12 Nutritional Deficiency "Started taking organic vegan liquid B12. I work out 5 days a week. One month after taking the B12, I began rapidly losing belly fat, which exercise was not doing! Highly recommend for reducing belly fat!"

• Joa...
• Taken for 1 to 6 months
• August 20, 2019

For Vitamin B12 Deficiency "The second lot of injections I had set my anxiety off so bad I had insomnia from not being able to sleep, and this time it's making me feel anxious and making my heart beat so fast. So, not sure I should continue with it."

• Coo...
• Taken for 6 months to 1 year
• November 10, 2019

For B12 Nutritional Deficiency "I feel this helps when I have a flare-up with my back, resulting in fatigue and non-stop colds, severe joint pain, nerve pain, disc deterioration, and a long list of other issues. It takes about 24 hours to feel the effects. I have never had the side effects that I know of or have been led to know about through my physicians. I have my liver and kidney blood checked every 6 months, and it seems to help. So far, this is helping, and I can only pray it continues to help without the side effects."

• lor...
• January 5, 2016

For Schilling Test "I have been using B-12 inject for close to twenty years. I suffer from thyroid problems and am currently treated with pills. I also have goiter, fibromyalgia, RA, osteo, being tested for lupus (which is almost a yes for sure), panic disorder, chronic, and several other minor things. My body is in daily pain. I use 1500 mcg of B12. This aides in pain relief, as well as a mood enhancer. It also puts you down when you're too highly strung. It also keeps your skin so pretty. I go weeks when, sometimes, I forget to take it, and my body screams 'please get me the B12.' It seems to run your nervous system and pain. I take this to ease some parts of pain for what it works on. When the weather is nice, 1000 mcg a month. It seems to be keeping me normal. Love it..."

• Scu...
• August 14, 2015

For B12 Nutritional Deficiency "I've been getting B vitamin injections for 9 months. Taking with phentermine for weight loss. Have more energy, I sleep fewer hours without being fatigued, and have not been sick once since I started. Lost 40 lbs total with both meds."

• khb...
• January 7, 2012

For Vitamin B12 Deficiency "I lacked the intrinsic factor to absorb Vitamin B12 from food since I was in my 30s. I was diagnosed with breast cancer 2x, and now at age 55, I increasingly find that I am dependent on the B12 for energy, mood, and weight maintenance. I can tell when my levels are low without a calendar as this usually occurs about 3-5 days before the end of the month when I am due for my shot."

• Tom...
• Taken for less than 1 month
• April 10, 2018

For Vitamin B12 Deficiency "Not good, after just two injections I have loss of urinating control, dizziness, feeling not in control. Just feeling peculiar. I have stopped the planned course after two injections. Hoping the effects will pass. Interaction with other taken medications not expected."

• Not...
• Taken for 1 to 6 months
• April 22, 2015

For Vitamin B12 Deficiency "I am 50. Initially, I tried it to fight depression and low energy. Hoped it would help me trim off 10 lbs without the need for a diet. At first, it helped, but after a few months, I started gaining weight and developed muscle fatigue. I literally weakened by about 20%. These injections began having a negative effect on me for everything I hoped they would help. I am not taking another one."

• Koa...
• Taken for less than 1 month
• December 4, 2014

For Vitamin B12 Deficiency "I was on Vitamin B12 injections years ago and felt good. The thing is, my workmates mentioned how I was different. I also have a thyroid problem and have started my injections again. I just didn't know why or what had me feeling so bad. I was diagnosed with bipolar, but I wonder even with just B12 deficiency or thyroid alone. They have such an impact. But together, I am very affected. Once I feel better, I will see if I am bipolar. The B12 injections do help, maybe not instantly, maybe days or longer, but they help 100%."

• Tit...
• January 30, 2011

"Vitamin B12 really helps with depression and has helped me a lot. It's actually helped me more than depression medication (SSRIs). So take a daily multivitamin with it and/or an energy drink every day with it and you should feel better."

• Cas...
• August 14, 2015

For B12 Nutritional Deficiency "I am on the shot for my B12, and it works like a charm. I first noticed my feet would burn like someone put a match under my feet and lit it. Since I've gotten it, my feet have been doing better, although just weeks before I get the shot, my feet start to burn, but after I get it, it’s gone. I will probably have this shot for the rest of my life."

• Rob...
• Taken for 2 to 5 years
• March 5, 2023

For Vitamin B12 Deficiency "B12 is miraculous for me. I developed anemia from cancer treatment and went on B12 shots, which gave me energy and resolved the anemia. I took the shots monthly for two years. I'm not on shots anymore. I take a 1000 mg pill, one per day."

• Tes...
• Taken for 1 to 6 months
• December 21, 2014

For Vitamin B12 Deficiency "I started injections about two months ago. The first month was an injection once a week. Now I go once a month. The only thing I have noticed is a huge increase in back pain. I had to go to the emergency twice! No one told me I might have pain. But it makes sense, my nerves are waking up. Also, I feel seriously bloated. Sometimes my jeans fit fine, sometimes they are tight. It's not vanity, I am fighting diabetes with diet and exercise, so the weight changes are disheartening. Other than the pain and bloat, I don't really notice much difference."

• Anonymous
• August 17, 2020

For Vitamin B12 Deficiency "My diet is mainly vegetarian, fish, and chicken, hence, I have a vitamin B12 deficiency. However, I have high energy levels. I have recently started vitamin B12 injections. After the second injection, symptoms commenced, which I don’t suffer from normally: high anxiety, racing heart, high blood pressure, diarrhea, nausea, vomiting. I went back to my holistic doctor, and we decided to stop the injections and take only the sublingual and vitamin B tablets at breakfast time. We will try injections every few months."

• Den...
• Taken for less than 1 month
• December 10, 2021

For B12 Nutritional Deficiency "I started using the combined patches 3 weeks ago. One a week. Last week I had buzzing in my left foot and never connected anything. This week I got palpitations out of the blue! Currently, day 4. Won't be using them again, as googling led me to this page and others like it. The patches are combined with folate. Slow release…. Can't say for sure it's them, but the 2 noticing issues only came about since I started using them."

• Anonymous
• October 23, 2011

For B12 Nutritional Deficiency "I started reading about the benefits of B-12. I thought it to be something to try. I've noticed that I'm much more alert for a greater portion of the day. I'm not suffering from the afternoon slump."

• jer...
• Taken for 1 to 6 months
• October 24, 2019

For B12 Nutritional Deficiency "I had issues with my health, so after consulting with my doctor, I am taking Vitamin B12. Now I am feeling great."

• con...
• May 5, 2013

For B12 Nutritional Deficiency "I feel more energetic and can focus more the first 2 weeks of injection."

• Mur...
• Taken for 10 years or more
• September 19, 2020

For Pernicious Anemia "Anemia, low hematocrit, lethargy. Schilling's Test... also hypothyroidism... diagnosed by a hematologist many years ago..."

• Bec...
• Taken for 1 to 6 months
• October 24, 2019

For B12 Nutritional Deficiency "I had a problem absorbing Vit B12, so my doctor consulted me to take this medicine."

• Ano...
• Taken for 1 to 6 months
• March 15, 2020

For B12 Nutritional Deficiency "Opted for B12 shots once a week."

• Ast...
• December 8, 2014

For Vitamin B12 Deficiency "No aftertaste, unlike all the others that I have tried -- and it does not cause awful-tasting gas, unlike all the others that I have tried. Smaller than most of the others too!"