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dermdoc19, Dermatologist
Category: Dermatology
Satisfied Customers: 4069
Experience:  30 years practice in general and cosmetic dermatology
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Skin rash/stiffness/irritation during Fasting / Ketosis I

Customer Question

Skin rash/stiffness/irritation during Fasting / Ketosis
I was on near-fasting for 6 days. <600 calories a day(Predominantly Fat). Ketosis triggered in 3rd day. Ketosis level went on to 16mmol/L measured in Ketosis urinary test strip.
On 6th day, rashes appeared on my face - more on the chin and around mouth. It's like very minute boils and skin looked very stiff. Red rashes appears around neck / shoulders as well.
I have done 5 days water fasting twice before and same rashes appeared. This went off when I started giving carbs, in 3 - 4 days. Some say the rash is due to toxin going out of the body via skin. But I'm unsure about this. I want to do a 6 weeks fasting/ketosis. I have recently developed scalp psoriasis and believe long fasting / ketosis can improve this condition. Please can you suggest if this ketosis induced rash is harmful or not.
I'm expecting an helpful answer rather than 'Stop Ketosis/Fasting'. I have stopped Ketosis /Fasting 3-4 times due to this but want to do Ketosis again for detoxification/ help in scalp psoriasis healing.
Submitted: 1 year ago.
Category: Dermatology
Expert:  Dr. Pravin replied 1 year ago.


Welcome and Thank you for your query posted.

My name is***** and being a Skin, Hair and Nail specialist I would be able to provide you with an appropriate solution to your concern.

Please note that my Goal is to provide you with an Excellent Service .

Before I answer your question I would like to get some more information:

Could you send me a photo of the condition at your convenience?

You can upload the photo on and send me the link

Other method of uploading photo or a file is:

1.Click the paperclip icon

2.Click the Browse icon

3.Click the Browse button

4.Select your file and click Open

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7.Click Save Changes on this page

Please note that the answer provided is for information purpose only and does not substitute a Doctor - Patient Consultation in Clinic

Customer: replied 1 year ago.
Relist: Other.
I'm looking for someone who knows ketosis / fasting and it's effects on skin please.
Customer: replied 1 year ago.
Relist: Answer quality.