Reversing type 2 diabetes in only 2.5 months with keto and fasting


Before and after

With a combination of keto, fasting and exercise, Osvaldo has been able to reverse his type 2 diabetes in only 2.5 months!

It’s very impressive. Here’s exactly how he did it:

The email

Hello Andreas,

I want to thank you for the advice at Diet Doctor, as it helped me reverse my type 2 diabetes in only one and a half months.

On the 1st of June 2017, I went to a scheduled appointment at my doctor’s office and he stated that my blood sugar had risen to an HbA1c of 73 mmol/mol (8.8%), and he thought that I should start taking insulin. I had, since I was diagnosed in 2012, taken Metformin (850 mg) three times daily and Glimeperid 4 mg in the morning.

I told him that I didn’t want to take insulin and so he prescribed Januvia instead, with the intention of strengthening the blood-sugar lowering power of the medication, but he said that we needed to book another appointment within three months to see whether the blood sugar (as measured by HbA1c) had been lowered to approximately 52 mmol/mol (6.9%) which is what they recommend for people with the diagnosis of type 2 diabetes and if that didn’t happen he would have to prescribe insulin.

When I went home I felt both disappointed and angry as I hadn’t worked out during the last couple of months and it hadn’t affected the result in any significant way, but at the same time I refused to accept that type 2 diabetes is a chronic and incurable disease which worsens no matter what. My older brother died from the disease in the beginning of May and my father in law passed away from it three years ago. I refused to see a dark future in front of me.

I started to search for alternative treatments and found a YouTube clip by Dr. Jason Fung about reversing type 2 diabetes and I started to collect information by looking on other pages about metabolic diseases and the role of insulin in the development of these. I also became more interested in diet and looked on your Swedish equivalent of Diet Doctor and for exercise I looked at “” and “” (in Swedish).

One week after I visited my doctor, I decided to change my lifestyle by lowering the amount of carbs in my diet and start eating LCHF, do intermittent fasting and buy a gym card to start lifting weights. My plan was to combine LCHF, fasting and exercise for 8 weeks and consequently reverse my type 2 diabetes by lowering the level of insulin in my body.

I made the following program:

The first week I started cutting out carbs and eating low carb and working out and quit Glimeperid and lowering the Metformin.

During the second week I stopped eating breakfast and worked out six days a week at the gym. I took the Metformin in conjunction with meals.

During the third week I also removed lunch so I only ate dinner (a hearty amount of keto low carb) and worked out six days weekly at the gym. I only took Metformin at dinner.

During the fourth week I fasted for seven days with water only and worked out every day. I felt more energetic and was able to work out properly and additionally I ran 7.5 km (4.7 miles) on the 5th day. Removed all medications!!! Amazingly, all the aches in my hip and calves disappeared and later on I received the news that the inflammation in my body had been lowered as a consequence of low carb and fasting.

During the fifth and sixth week I started eating normally but during the first two days after fasting I had broth and some meat, then I started eating regular LCHF and went on holiday to Italy, where I ate pasta and pizza and ice cream a couple of times so I took the Metformin before these meals.

After the eighth week, I did regular LCHF and done intermittent fasting a couple of days per week and worked out five times a week and took no medications. It is my new lifestyle!!

On the 16th of August 2017, two and a half months after the last visit, I went to the scheduled meeting at my doctor’s office (unfortunately my doctor wasn’t there but one of his colleagues was instead) and she looked at the result of the tests, especially HbA1c and said to me. Great, it seems as though it works. Your numbers are great. Then I told her that I had stopped taking the medications one week after my last visit and that I had been following recommendations from other doctors and specialists on metabolic diseases. She became interested and we talked for half an hour about this. The result in HbA1c turned out to be 40 mmol/mol.

In two and a half month I was able to stop all medications and:

  • Lowered my HbA1c from 73 mmol/mol to 40 mmol/mol.
  • Lowered my weight from 74 kg (163 lbs) to 65 kg (143 lbs) plus added muscle.
  • Lowered my waist circumference from 97 cm (38 inches) to 86 cm (34 inches).

Kind regards,

I have a YouTube channel in Spanish where I talk about reversing diabetes and losing weight:

Como revertir la diabetes tipo 2 y combatir la obesidad

Como revertir la diabetes tipo 2


Congratulations Osvaldo, to your fantastic success!

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  1. 1 comment removed
  2. Ben Thompson
    I'm glad he managed to rid himself of type 2 diabetes bit I've been a type 2 diabetic for 8 years and I can not rid myself of it. I do keto too. In reality how many have actually rid themselves of this disease? How long have they been diabetic. I've had to give in to it and be put on medication as I've had operations that I am not healing from and subsequently getting serious infections too.
    I also fast . I tend to eat in a 4 hour window each day and fast for the rest but it's still not working for me. Nore can i lose weight. Keto hasn't enabled me to recover from diabetes.
    Reply: #3
  3. Human Lesnoy
    People's metabolism can differ and sensitivity to some foods is different too. You should try to find a doctor who's aware of the connection between lifestyle, eating habits and health. It also can take more time to see results depending on your previous lifestyle. Ben, what's about some additional info (age, weight before and now, which medication did you get, your nutrients intake and foods you prefer now)?
  4. Tamarah
    Osvaldo,, amazing physical transformation and your health transformation as well . Good for you for changing your life,, no greater gift you can give yourself .
  5. Renee
    Wow! Great job.
  6. Jackie Power
    Diane you can do the exact same with Ketones. Message me
  7. Deni Gray
    Hi Ben if you have not already found the solution to reversing your diabetes like Osvaldo don't dispear. Like you I have been diabetic T2 for over 20 years on Isulin for more then 14 years. I am currently trying to reverse the complications of his like Cardiovascular disease neuropathy slow wound healing, Irritable bowel, Macular oedema requiring eye injections and other health issues. I am currently FASTING so far I'm day 7 of perhaps 14 days in an attempt to reverse or stabilise it. I've had amazing results so far I'm having broths. water, tea and coffee so far my BSL has dopped so well I no longer take my Insulin, which I took with each meal. I'm on Saxagliptin 5mg only now and if I get down to normal levels or lower I will drop this also.

    I am burning High Ketones todays level was 3.7 BSL 6.9 or 124.2 so for me thats exceptional given regular highs of up to 26.0 or 468.0 so these improvements are dramatic. Yes 6.9 for me is a Hypo.

    I have only added regular exercise and resistance training every other day as I also have Trochanteric Bursitis in my hips and inflamation. But even that has dramatically improved.

    I read Dr Fungs books The Diabetes Code & His book on Fasting That's why I'm doing it! However I'm getting some supervision and will see my Diet Doctor in 4 days. I'm hoping by then to have achieved more milestones but from what I've seen read and heard some o us have to do more then just Keto qand IMF we need to do extended fasts to really get quicker results aand then we can go back to regular IMF's.

    Especially if we have Metabolic challenges like stubborn Diabetes and other Metabolic issues.

    If you need support contact Dr. Fungs IDM website or find a DR who will support you to do this. I really hope this is of some help to you.

    Regards Deni G.

  8. Tony
    Cool. Can you provide you glucose tolerance test that confirms complete reversal of the disease?

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