Medicinal Effects of Foods - Part 2

Ever done an "unintentional cleanse"? You know, that one-strawberry-too-many warning gurgle? That I-love-tomatoes-so-much-I-can't-stop-eating-them oops-gotta-go? It's that time of year here on the West Coast when the fresh fruits and veggies start rolling in by the bushel and I get a little too excited about some of them, especially those strawberries... So why do they do that? What's the deal with the "flush"?

As mentioned in Part 1, depending on amount, what we ingest can be sustenance, pharmacological or toxic. That innocent strawberry actually contains a number of toxins that it creates to help ensure that at least some of it's seeds have a chance to grow to new plants. If the strawberry can't protect itself against slugs and earwigs and snails in some way, then it's chances of survival as a species are slim. Some of those toxins are at doses too low to be problematic for the human body. But interestingly enough, something we think of as benign can become a toxin that overwhelms the body's ability to process it: fructose.

Fructose is one of the most common naturally occurring sugars in our food supply. It has benefits in relatively small doses as a fuel source for the metabolically active tissues of the body. It takes a bit longer to be broken down though and the system in charge of this process is easily overwhelmed. When the amount of fructose to be broken down builds up faster than the body can process it, a shift occurs which ultimately is like the internal disassembly crew throwing up their hands and giving up then pressing the emergency eject button on the contents of the gut to get rid of the excess -- and off you run to the potty.

Other foods that can have this effect usually have either a relatively high amount of fructose, or are high in soluble fiber. The two big categories of fiber are soluble and insoluble. The first acts in the gut like a sponge, soaking up excess fats, pulling in toxins to be removed, and pulling out excess water. The second acts like a scrubby as it passes through the intestines giving you a good cleaning out as it moves along. The soluble fiber's ability to absorb water is the culprit when it comes to causing an episode of diarrhea. Because it pulls water into the gut, high amounts of soluble fiber can create a very stool watery consistency. The intestines don't work well when the contents are too loose, so again, the emergency eject button gets pushed and off you skip to the loo again. Often people I work with have the opposite issue of constipation which generally can be dramatically improved by increasing both water and soluble fiber intake, both of which are sorely lacking in the "standard American diet" (aka SAD).

The other main ingredient that can have laxative effects on the gut is caffeine. Many people around the world have trained their guts to need a daily dose of caffeine in order to get moving. The reason for this is that caffeine is a powerful stimulant for peristalsis and acts as a diuretic. There are two main types of movements that the intestinal muscles produce, peristalsis and mass movements. Peristalsis is like a kneading action that pushes a blob of food back and forth against the intestinal lining exposing the contents to as many areas available for nutrient absorption as possible. Then, kind of like musical chairs, there is a signal and all the food blops move downstream a ways in a "mass movement" to be kneaded again. If you have a lot of caffeine, you increase the rate of kneading and you increase the amount of water that is taken out of circulation, some of which empties into the gut. This increase in fluid and movement can also cause that regular stop at the restroom about 20 minutes after your morning cuppa mud.

Of course, each of these effects can be employed on purpose to relieve relatively minor constipation. They can also be little reminders that you are over-indulging. I'm just happy to be in the midst of strawberry cleanse season! Be sure your strawberries are organic though, especially now with the new carcinogenic pesticides being approved for conventional strawberry crops... sigh... Eat REAL...