Diet Colas and Changing My Opinion


Several times on my health journey I have changed my opinion on a nutrition topic. Part of the freedom I have as an individual is that I am not accountable to clients or some brand. I’ll embrace an idea, test it, use it as long as it suits me and then discard it when I need to. The one idea I have changed my opinion on the most has been diet colas.

My Boring History With Diet Colas (High School to 2012) – Skip This Section if You Like

In high school, I switched from regular Coke to Diet Coke. No calories! In college, I fell for the aspartame is an evil toxic compound argument and went back to regular cola. By the time college ended, I was a coffee drinker and rarely drank cola. Then during the dot-com era, I started drinking Coke again. Then I got all healthy again, I stopped drinking all colas. That was until Coke came out with a Splenda version of Diet Coke and eventually Coke Zero.

Coke Zero held my attention for a few years, then I became concerned not so much for the aspartame, but the benzoate compounds. I even wrote a break-up post with Coke Zero titled Yes, It’s Over, Call It A Day, Sorry That It Had To End This Way. That break up lasted until I found myself in the blaring heat of Thailand. Even after that trip, I would continue to drink maybe 1-2 cans of Coke Zero a month.


Coke Zero in Bangkok

Headaches, Diet Cola Safety and Krieger

Why was I still drinking the occasional diet cola? Two reasons. One, I believed that diet colas could help on those mornings when I had a really bad headache that coffee and tea couldn’t eliminate. Two, I believed that the sugar from regular cola posed a worse risk than the artificial sweeteners from diet cola. Some will gasp at that statement, but there is a lot of hysteria when it comes to the dangers of diet colas. If it were 1% as bad as its critics claim, people would be dropping like flies. People drink a lot of diet cola and have for a few decades. I don’t see these people having worse health outcomes. There are some alarmists that treat drinking diet cola as if were like riding a motorcycle in the rain without a helmet. Really?

The first level headed examination of this topic that I heard was when James Krieger of Weightology appeared on the Bulletproof Exec podcast #15. I’ve listened to the show twice and I feel Krieger made the case that health risks from diet cola are way overblown. There are some people who get headaches or feel lousy from drinking diet colas. They should stop. James has a series of articles on the topic for paid members of his site for which I am not.

By the summer of 2012, I was still medicating with Coke Zero whenever I got an extreme headache. Then I noticed that my headaches would go away at the same rate regardless of if I drank a cola or not. So I stopped drinking diet colas. Later I discovered that lowering my coffee intake would be more effective in reducing headache frequency.

Why Am I Fearing Sugar?

Going all the way back to high school, the underlying assumption has been that sugar is full of health risks. Why else would anyone initially embrace diet cola? Last year I played with the idea that sugar may have gotten an undeserved bad reputation. Although I am still not convinced sugar is 100% innocent, I am no longer with the majority that believes it is evil. I cover my thoughts more in the post Why Ice Cream is Better Than Protein Powder.

The safety debate that I read about concerning sugar has to do with real sugar versus the corn syrups. Some say they are equal, whereas others have written about the dangers of the corn syrup variety. I honestly don’t know the truth, but last year when I made an effort to only eat clean ice cream (no corn syrups or carrageenan), my skin quality improved. So I started drinking the occasional Mexican Coke, which uses regular sugar and I feel fine. It also tastes a lot better than corn syrup Coke or any of the diet cola offerings.

My Current Opinion

I am not convinced that any cola is healthy, yet I think I am fine with regular or diet. Since I drink so few colas, the best option for me now is Mexican Coke. Once again I am rejecting diet colas, but not because I believe they are dangerous. Diet colas don’t help my headaches, they don’t taste as good as real colas and I no longer fear small amounts of sugar. It is likely my opinion on this topic will change again. For the record, I still think the best option is no cola, but sometimes I really crave the taste of Coke.

Is HIT Really Less Effective Than Traditional Weight Lifting?


I’ve only being doing High Intensity Training for a little more than a year now, so I am far from an authority on the topic. Before I became a believer in the effectiveness of HIT, I really didn’t pay much attention to its supporters or detractors. However, in the last year I’ve read numerous fitness articles and comments on the Internet attacking HIT.

Now I’m just regular person. I’m not a personal trainer and I don’t have a client list to prove to anyone anything. What I’ve discovered in the past year is that HIT is highly effective for me. I did it the other way for 16 years. In my N=1 experiment, High Intensity Training is superior to traditional weight lifting or explosive training. I’m not saying HIT is superior for everyone – just for me.

Is Coca Cola Better than RC Draft Cola?

One of the things I constantly read from fitness “experts” is how HIT is flawed because they see better results with clients that don’t follow a High Intensity Training protocol. They say this as if it is proof that HIT is less effective. For starters, I don’t discount that statement is true. But it is not for the implied reason.

Way more people are exposed to traditional weight lifting protocols than HIT. I’d be surprised it HIT made up 1% of all strength training. It only makes sense with that huge of an advantage that non-HIT trainers would have a greater pool of successes. Also, those athletes that respond well to classic strength training are going to be less likely to give it up and embrace HIT. So we don’t know if they would do better or worse on HIT, what we know is they aren’t going to be as motivated to switch.

Back in the mid-1990s, I was still drinking cola. I preferred Coke over Pepsi. One day I spotted RC Draft Cola and tried to recall if I liked it as a child. I wasn’t sure, but I was willing to give it a try. The taste blew me away. It was superior to Coke, probably because it used raw cane sugar and not high fructose corn syrup. For a few months I recall telling friends and co-workers about RC Draft Cola. With one exception, I don’t think anyone tried it. Coke was working for them, why should they seek out a far less popular cola option? I was able to get one die-hard Coke fan to try it and agree with me.

RC Draft Cola

The fact way more people prefer Coke to RC Draft Cola isn’t proof that Coke is superior. And the fact the majority of elite athletes don’t use HIT isn’t proof that traditonal strength training is superior.

Measuring Failure

Just as Coke has far more fans than RC Draft Cola, more people have quit drinking Coke than have quit drinking RC Draft Cola. The same is true for strength training. There are far more lifters that quit or got injured doing traditional weight lifting than High Intensity Training. Popularity cuts both ways when it is used a metric to measure efficacy.

Try Both

Instead of repeating the same old arguments for and against HIT, why not just try it for yourself? Seek out a top trainer in your area and schedule a workout. I thought I understood intensity after reading Body By Science and watching a few videos online. I didn’t. After my workout at Ideal Exercise, it all clicked.

UPDATE (Feb 4, 2012): I changed the title of this post to be more descriptive.