# Feeling Tired While On Diabetes Medication? B-complex could Help **URL:** \ **Category:** General\ **Tags:** healtheducation, patientcare, medical\ **Created:** [June 28, 2025, 6:34am UTC](https://www.medboundhub.com/t/feeling-tired-while-on-diabetes-medication-b-complex-could-help/4009 "2025-06-28T06:34:28Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Dr.Nikhitha](https://yyz1.discourse-cdn.com/flex033/user_avatar/www.medboundhub.com/dr.nikhitha/32/572_2.png) [@Dr.Nikhitha](https://www.medboundhub.com/u/Dr.Nikhitha)\ **Post date:** [June 28, 2025, 6:34am UTC](https://www.medboundhub.com/t/feeling-tired-while-on-diabetes-medication-b-complex-could-help/4009/1 "2025-06-28T06:34:28Z")
Managing diabetes can be challenging. If you’re taking Metformin, the most commonly prescribed medicine for type 2 diabetes, you may often feel tired, weak, confused. There might be a simple reason: Low Vitamin B12. **Link between Metformin & B12 absorption** Metformin is effective in controlling blood sugar, but long-term use over 4-5 years can interfere with the body’s ability to absorb Vitamin B12. This happens in the intestines, where B12 needs a special protein called “intrinsic factor” to be absorbed properly. Metformin can disrupt this process. **Who Is at Greater Risk?** People at most risk of B12 deficiency while taking Metformin include: - Those on high doses or using it for many years. - Adults over 60 - Vegetarians or vegans, since B12 is mainly found in animal foods. **Signs You May Be Low on B12** - Feeling tired or weak all the time - Numbness or tingling in the hands or feet - Trouble remembering things or feeling confused - Pale skin or anaemia If these signs sound familiar, it’s worth checking your B12 levels. **What Can Be Done?** The good news is that B12 deficiency is easy to manage. A simple blood test can check your levels. If needed, doctors may recommend B-complex supplements or Vitamin B12 tablets or injections. Many patients feel more energetic once their B12 levels are restored. **Don’t Ignore the Signs** If you’ve been taking Metformin for a few years, especially if you’re following a plant-based diet and are over age 60, talk to your doctor about checking your B12. Regular monitoring and supplements when needed can help you stay healthy and feel your best. ---
**Author:** ![Prisha](https://yyz1.discourse-cdn.com/flex033/user_avatar/www.medboundhub.com/prisha/32/770_2.png) [@Prisha](https://www.medboundhub.com/u/Prisha)\ **Post date:** [June 28, 2025, 7:11am UTC](https://www.medboundhub.com/t/feeling-tired-while-on-diabetes-medication-b-complex-could-help/4009/2 "2025-06-28T07:11:11Z")
Thank you for this co-relation. This is definitely worth looking out for in patients with diabetes. ---
**Author:** ![Bhavini](https://yyz1.discourse-cdn.com/flex033/user_avatar/www.medboundhub.com/bhavini/32/521_2.png) [@Bhavini](https://www.medboundhub.com/u/Bhavini)\ **Post date:** [June 28, 2025, 7:11am UTC](https://www.medboundhub.com/t/feeling-tired-while-on-diabetes-medication-b-complex-could-help/4009/3 "2025-06-28T07:11:43Z")
> [@Dr.Nikhitha](#): > > Managing diabetes can be challenging. If you’re taking Metformin, the most commonly prescribed medicine for type 2 diabetes, you may often feel tired, weak, confused. > There might be a simple reason: Low Vitamin B12. > > **Link between Metformin & B12 absorption** > > Metformin is effective in controlling blood sugar, but long-term use over 4-5 years can interfere with the body’s ability to absorb Vitamin B12. This happens in the intestines, where B12 needs a special protein called “intrinsic factor” to be absorbed properly. Metformin can disrupt this process. > > **Who Is at Greater Risk?** > > People at most risk of B12 deficiency while taking Metformin include: > > - Those on high doses or using it for many years. > - Adults over 60 > - Vegetarians or vegans, since B12 is mainly found in animal foods. > > **Signs You May Be Low on B12** > > - Feeling tired or weak all the time > - Numbness or tingling in the hands or feet > - Trouble remembering things or feeling confused > - Pale skin or anaemia > > If these signs sound familiar, it’s worth checking your B12 levels. > > **What Can Be Done?** > > The good news is that B12 deficiency is easy to manage. A simple blood test can check your levels. > > If needed, doctors may recommend B-complex supplements or Vitamin B12 tablets or injections. > > Many patients feel more energetic once their B12 levels are restored. > > **Don’t Ignore the Signs** > > If you’ve been taking Metformin for a few years, especially if you’re following a plant-based diet and are over age 60, talk to your doctor about checking your B12. Regular monitoring and supplements when needed can help you stay healthy and feel your best. Such a clear and helpful post! 💡 You’ve explained an often-overlooked link between Metformin and B12 deficiency in a simple, relatable way. This kind of awareness can truly help patients feel better and take action early. Thank you for sharing this! 🙌💊