Science and the Scleroderma Girl: What a Cell Wants… (AKA the Sugar Rant)

I’ve been pressured repeatedly to “give up sugar” to control my inflammation. Really, people have been pretty darn aggressive in this messaging both in person and online. To be fair, the people pressing this message must have felt they were improved when they cut back on sugar, but every time it happens I am torn between tears and frustration.

I’m sorry, but this is like telling me that I can’t put gasoline into my car anymore. The car simply can’t run on air alone, and neither can I.

Eukaryotic Cell
Cutest drawing of a cell ever!! This little guy, an idealized animal cell, needs many essential components to stay alive, including a constant supply of glucose and oxygen. That’s what a cell wants, what a cell needs… 

Okay, to be clear, we do need a component of air for energy: oxygen. I was running short of that commodity earlier in my scleroderma career and had to be placed on supplemental oxygen for about 6 months waiting for my drugs to kick in and save my ass. If you are short on oxygen, as I can attest, you are also short on energy and you can’t think very well. I was in trouble, as my pulmonologist put it, because my “engine” (my lungs) was too small for my body.

The other essential energy component is sugar, or specifically, glucose. Cells, and by extension, bodies, use an amazing system of biochemical pathways to convert biological materials to glucose, maintain a steady concentration of glucose in your blood, and then pack away the excess for storage in your muscles and liver. If blood glucose levels drop too low your body releases glucose from storage. If the stored glucose gets used up, your body begins to cannibalize other tissues. Why is glucose so important? Because it is used in the mitochondria located in body cells along with oxygen to produce the energy molecules (ATP for you geeks out there) that are used to run the whole biological show. If there is no ATP, the whole show stops. That’s why it is critical to keep people breathing and their blood pumping, but also why it is important to consume glucose.

My relationship with glucose is pretty darn complex. Too much sugar at a time isn’t a good thing: it can dehydrate and damage tissue, and high blood sugar can cause blood pressure spikes. Take home lesson for me: don’t binge on milkshakes, sugary pops, and French fries. Because I had hypertension and a family member with diabetes, I have spent years developing a diet that has a low glycemic index. I eat yellow potatoes instead of white ones, recipes with half the flour replaced with oatmeal, and little sugar. I also eat fresh fruit in my yogurt smoothies, and rice mixed with veggies. I am eating sugar every single day in my meals, and it really is essential for me to function properly; the trick is to try to consume it in a way that helps maintain good blood sugar levels. Frosting loaded cinnamon rolls… NO!! Banana and strawberry smoothie with yogurt… YES!!

So, every time someone insists that I have to “cut out sugar” I can feel my head getting ready to explode. I wonder if they understand that potatoes, bread and rice are also “sugar”. Have they given up fruits? If they are also cutting out gluten they may be actually spiking their blood sugar with rice-based alternatives. It is kind of crazy talk… It also is kind of “it’s your fault you are sick” talk. Not nice!!

Knitting
It makes me go sit in a corner somewhere to knit away the frustration…

The research is mixed on the link between sugar and inflammation. There are lots of articles on healthy eating sites that say it is bad, but I wanted to see actual controlled experiments looking at the link between sugar and inflammation. There are several ways to check for inflammation but most look for inflammatory markers in the blood and cell permeability. This controlled research study found that there was no link between excessive sugar intake and inflammation. It’s kind of a small study, though, so I went hunting for more. This study showed that sugars obtained from food were not inflammatory, but when people consumed free sugars (spooned sugar into coffee or cereal, or drank sugary fruit juice) they did increase inflammatory markers. Cool. That totally makes sense, and explains why other people are reporting that they feel better when they “cut out sugar”. My sugar canister goes months without being opened… I don’t add sugar to anything unless I’m baking. Still on the hunt for info, I found this meta-analysis of research studies that showed that high-fructose corn sugar wasn’t any worse than any other in terms of inflammatory marker increases.

Okay, I think that the rant is over. Sugar is your friend, but don’t get crazy people…

Back to the knitting!

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