Many of the people I consult with consume an excess amount of caffeine each day. Most people do this in the form of drinking coffee, although some drink too much soda. Some people do both, drinking both coffee and soda on a regular basis. Others drink tea on a daily basis. While it’s a big challenge getting people to eat well and manage their stress, it can be just as difficult for people to avoid caffeine when they are accustomed to consuming it everyday.
Is Caffeine Really That Bad For You?
In small amounts, caffeine usually isn’t a problem for most people. The problem is that many people don’t consume a small amount of caffeine, but instead consume a lot of it each day, and this doesn’t just have an impact on their thyroid health, but their overall health as well. As for how it affects thyroid function, consuming caffeine will increase the metabolism, which of course is regulated by the thyroid gland. So if someone drinks a lot of coffee or soda on a daily basis, then this will affect the metabolism of the body. This might sound good for someone who is hypothyroid, although this isn’t necessarily the case, and I’ll explain why below.
Consuming a lot of caffeine each day will also affect the adrenal glands. Caffeine is a stimulant, and when you drink coffee or soda the body will produce adrenaline, which is supposed to happen when there is a fight or flight situation (not when you’re sitting at a desk in front of a computer). So whenever you consume caffeine it will cause the adrenals to release the hormones epinephrine and norepinephrine, and when this happens repeatedly this can wear out the adrenal glands. This of course takes time to happen, but the problem is that many people start consuming large quantities of caffeine at a young age. Even though I was never much of a coffee drinker and haven’t had soda for a number of years, I drank a lot of soda growing up. Whether this contributed to the adrenal problems I experienced in the past I’m not sure, but it wouldn’t be a surprise if it was a factor.
I constantly see young children drink soda, and while having an occasional caffeinated beverage usually isn’t a big deal, many parents give their children soda on a daily basis, which is setting them up for health problems. My goal here isn’t to criticize anyone for giving their children soda, but instead is to educate them. I’m pretty sure my parents weren’t giving me and my siblings soda everyday to intentionally harm our health. Just a few months ago my wife and I took our daughters to an amusement park, and while we were watching one of the shows I noticed a parent with a very large cup of soda (one of those big 32 ounce souvenir cups), and throughout the show she was allowing her baby to drink the soda. The baby couldn’t have been more than one year old. This obviously is not an isolated case, as this happens all of the time.
Cortisol vs. Adrenaline
In any case, caffeine has a similar affect on the adrenal glands as sugar, although it involves different hormones. I’ve explained in the past how eating refined foods and sugars on a frequent basis will cause the adrenal glands to secrete cortisol, which over time will weaken the adrenal glands. Well, the same thing happens when someone consumes caffeine, as this will cause the adrenals to secrete adrenaline, which over a prolonged period of time can compromise the adrenal glands. And for someone who drinks a lot of coffee regularly, what usually happens is that they will build a tolerance towards it, which means they will need to drink more coffee in order for it to be effective.
Although I’m focusing on coffee and soda here, tea also has a decent amount of caffeine. As for you chocoholics who are reading this, chocolate does have caffeine, although not nearly as much as coffee, soda, or tea. So this doesn’t mean you can eat all of the chocolate you want, although a little bit of dark chocolate every now and then usually is fine (that’s a good thing, as I’m not sure if I could survive without some dark chocolate every now and then!).
Can Drinking Caffeine Lead To Thyroid Cancer?
A study on rats showed that giving them caffeine when combined with an iodine deficiency increased the incidence of thyroid cancer. I don’t know of any findings that show the same effect in humans, although if you happen to drink coffee, tea, and/or soda on a regular basis then I probably would make sure to correct any iodine deficiency you may have.
There also is a risk of developing osteoporosis by consuming too much caffeine. Since caffeine causes the urinary excretion of calcium, this can potentially cause or contribute to osteoporosis. And if you currently have hyperthyroidism or Graves’ Disease this risk is already increased, and so this is yet another reason to be careful about drinking beverages which have caffeine on a regular basis.