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Does anyone get sleepy after having a protein shake?



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A bit of an odd question, but does anyone else have problems staying up after having their shake? Pre-op, I never even had a supplement shake. So since February, I have tried many different types (meal replacements, whey, vegan), and it always ends with me feeling super drowsy. For the first month or two, sometimes I would actually need to have a nap right after my shake. Ten months later, I can stay awake, but I feel very lethargic and just sit there, like a lump! lol When I'm at work, perhaps it is because I am distracted, but I can still somewhat function. But at home, I just sit on my couch, and can't move for half an hour or so.

TMI: And often, I would have to go to the bathroom after having a shake, or at least I feel like I do...

I need to do some more testing, but I had tested my blood pressure, and it was pretty low after I had my shake (usually it's excellent).

Has anyone else experienced this?

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Dehydration can cause drowsiness and it can also cause your blood pressure to drop. Here is a link to a 2012 thread that discussed the issue. https://www.bariatricpal.com/topic/211099-anyone-else-dealing-with-low-blood-pressure-post-surgery/

The issue might be an electrolyte imbalance. According to the internet:

Electrolytes are minerals in body fluids that contain an electrical charge. Sodium, Calcium, phosphate, carbonate, potassium, chloride and magnesium are the main electrolytes. Maintaining an appropriate electrolyte balance can improve muscle action, blood chemistry and other processes, according to MedlinePlus. However, when the amount of Water in the body changes, the levels of these electrolytes may become too high or too low. The specific symptoms of an electrolyte imbalance vary greatly depending upon which electrolyte is unbalanced, but may include thirst, weakness, drowsiness, sluggishness, fatigue, confusion, cramps, abnormal heart rhythm, loss of appetite, nausea, vomiting or seizures.

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I don't drink shakes, but I get very sleepy after having Protein at all. Same with fat. My docs and NUT don't know why, but I feel much better when I eat mainly carbs (healthy ones, of course).

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On 12/5/2017 at 2:57 PM, chipmmunk said:

A bit of an odd question, but does anyone else have problems staying up after having their shake? Pre-op, I never even had a supplement shake. So since February, I have tried many different types (meal replacements, whey, vegan), and it always ends with me feeling super drowsy. For the first month or two, sometimes I would actually need to have a nap right after my shake. Ten months later, I can stay awake, but I feel very lethargic and just sit there, like a lump! lol When I'm at work, perhaps it is because I am distracted, but I can still somewhat function. But at home, I just sit on my couch, and can't move for half an hour or so.

TMI: And often, I would have to go to the bathroom after having a shake, or at least I feel like I do...

I need to do some more testing, but I had tested my blood pressure, and it was pretty low after I had my shake (usually it's excellent).

Has anyone else experienced this?

I am 8 years Post-Op and I get extremely tired anytime I eat Protein. I have never done the shakes because none of them agreed with me. I simply don't know what causes this and I have just gotten used to it at this point. I get my protein from veggies now as I have never been able to handle any type of meat without it getting stuck and causing extreme pain. It is just now worth the pain. I have had every scan and test to see if there was a blockage but nothing shows up. Baffling...

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