Lack of energy after gastric bypass surgery

Question Below Submitted By:  

Deena (a patient from Dallas/Fort Worth, TX, USA)

I had gastric bypass surgery, and now I sometimes lack energy. Do you have any suggestions for this?

How about electrolyte supplementation?

Thanks for your help!


Expert Responses to the Question Above

Bariatric surgeon at CBGSA , Arcadia , California

by: Dr. Troy LaMar

Hi Deena,

It is not uncommon for it to take 2-3 weeks to feel like you turn the corner after bariatric surgery. Once in a while it can take longer, but that would be a little unusual.

If lacking energy, make sure you are getting at least 80 grams of protein/day.

Take all the supplements your surgeon has recommended. And add some daily exercise.

If you are doing all these, and still tired, see your surgeon. Likely, he/she will send you for labs including vitamin levels too.

Hang in there, sometimes it just takes time, but make sure you follow up with your surgeon....always if things are not going right.

Take care and good luck,
Troy LaMar MD

los angeles bariatric surgeon

(click here for Dr. LaMar's full bio & contact info)

DISCLAIMER: This educational advice is based on the depth of your question and the details provided. The above should never replace the advice of your local physicians as they have the ability to evaluate you in person.

Related Pages:
- Bariatric Diet (What you eat)
- Bariatric Eating (How you eat)
- Bariatric Vitamins
- Life After Weight Loss Surgery
- Weight Loss Surgery Support
- Life after bariatric surgery - experiences from other patients


Patient Responses to the Question Above

Increase your supplements

by: Lisa Nelson

I had gastric bypass surgery in 2000. I would recommend increasing your bariatric supplements. Most surgeons advise very simple supplement requirements, but there are many studies documenting problems with nutrient deficiency in gastric bypass patients including increases in bone fractures, peripheral neuropathy and I believe addiction transfer.

One of the things that really helped me rebuild my nutrient reserves was finding a doctor that administers something called a Myers Cocktail. It is a nutrient cocktail administered via IV drip or push. It has been used for cancer patients and fibromyalgia patients, but it has worked very well for me. You no longer have to worry about your lack of absorption with this treatment so you no they are getting into your system.

I Had Lap band but ...

by: Mindy

I have known several people who had gastric bypass and know that they have to take several dietary supplements specifically formulated for weight loss surgery patients.

Are you taking supplements? If not, you might want to talk to your doc. Since you are not getting what you normally would from your food intake, you may have to take some more supplements to get your energy back. How long has it been since your surgery? Your energy level can take as long as 2 months to recovery after just the surgery.

Hope that helps, and good luck!

2 weeks post GBS


I had my surgery almost 2 weeks ago. I have felt so weak that I can not do simple tasks. My doctor told me to stay positive and keep up my activity..... how.... when I can not even walk to the bathroom!!! I tried to go to the shops today and almost passed out in the Isles.

A woman had to catch me. I am a very active and very determined person and also very independent. Not being able to do anything is making me depressed and teary. I can't carry on like this as I am due to return to work tomorrow. I am at a loss of what to do. I feel like if this continues I will not be able to work and may eventually loose my job.

Click here to add your own response

Share Your Comments

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.


[ Last editorial review/modification of this page : 05/24/2021 ]

* Disclaimers: Content: The information contained in this website is provided for general information purposes and your specific results may vary depending on a variety of circumstances. It is not intended as nor should be relied upon as medical advice. Rather, it is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her existing physician(s). Before you use any of the information provided in the site, you should seek the advice of a qualified medical, dietary, fitness or other appropriate professional. Advertising: Bariatric Surgery Source, LLC has entered into referral and advertising arrangements with certain medical practices, original equipment manufacturers, and financial companies under which we receive compensation (in the form of flat fees per qualifying action) when you click on links to our partners and/or submit information. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Read More

Request a Free Insurance Check

Fill out the below form for a free insurance check performed in partnership with your local bariatric surgeon.


Los Angeles/Orange County