3 Reasons Why I’m ditching Soda, Sugar and Carbs on the same day — maybe forever

This week I start a 3-month ‘test’ of the ketogenic diet

Many fats, some proteins, wow, few carbs

For me — this means a few things

  1. No Pepsi MAX — I drink between 3–4 litres a day of the stuff when I’m off-the-wagon. It has no Sugar, but plenty of caffeine and fake sugar which has its own collection of health concerns.
  2. No Refined Sugar — again, I have an incredible sweet tooth and can easily destroy multiple 500g chocolate bars or family sized tubs of ice cream.
  3. VERY few carbs — I love breads, pastas and anything with carbs in — so this is a radical change to my diet.
  4. As a indirect result of the above — gluten is likely to be at best fully removed, and at worst significantly reduced.

So lets start with the WHY am I doing this :-

Health Improvements

While I’m physically in good condition — I have an ok fat percentage and no serious health issues — I subjectively don’t FEEL good. I’m always tired, and I have pretty crazy energy fluctuations, in part I believe caused by the high/low sugar cycle. On the other side — the caffeine i consume impacts my sleep and that causes performance issues during the day AND impacts my fat and stress levels. My hope, is that a ketogenic diet will improve many of the above low level health concerns in a sustainable way.

Performance Improvements

I’m self-employed, so for me, time is literally money. I’m looking at all aspects of my life — attempting to identify ways to increase my output and improve efficiency. Exercise was stage-one of this — Ive moved from being super-tired all the time & getting breathless walking up some stairs to doing a 36 minute 10km row in 3 months. I believe that via diet change, I can improve this even more. The ROI is pretty compelling so it’s worth investing time and money in.


I’ve been experimenting with performance supplementation for a while now, so-called nootropics. It’s not quite at the level of the movie and TV shows limitless with its NZT wonderdrug.. but a good amount of performance improvements can be achieved by some good quality supplementation.

So..whats the plan ?

Starting from the 27th of February I’m going to commit to eating with a ketogenic diet template for at least 3 months — if it works it will be a permanent change. I’ll be continuing my exercise regime, because I want to adjust as little else as possible. The change to my macro nutrient profile is huge and it needs to be isolated so the results are clear and uninfluenced by other factors.

  • Body Weight — using my Withings Scales (tweeted from @adriancantrill on twitter)
  • Body Fat Percentage — as above, Withings Scales… i’ll record daily, and post frequently…initially daily, moving to weekly.
  • Body lean Percentage — as above.
  • Body Water Weight — as above.
  • Sleep Time (Fitbit measured), Quality (Measured) and subjective quality.
  • Utterly subjective (how i feel) 1–20 value — 10 being a subjective NOW. 1 being terrible, 20 being amazing.
  • Blood Ketones — measured using a test device/strips
  • Blood Glucose — measured using a test device/strips (this may be after a few days when my strips arrive)
  • Body Measurements — chest, waist, gut
  • Exercise Details — type, duration, approx. calorific burn
  • Details of my meals — calories, macros and pictures if you are interested.



Technical Trainer, Cloud Architect, Tech, Productivity & Efficiency Obsessed wannabe minimalist.

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store
Adrian Cantrill

Technical Trainer, Cloud Architect, Tech, Productivity & Efficiency Obsessed wannabe minimalist.