I have thought a lot over the weekend about the relationship between eating carbohydrates and serotonin production. My wife made a comment to me about people who use medication for depression. She said individuals who use selective reuptake inhibitors, such as Celexa, Lexapro, Prozac, Paxil, Zoloft, and others in this class, may have a distinct advantage when losing weight. Her point being that patients taking the medication do not have to rely so much on the body’s natural ability to produce sufficient serotonin and other brain chemicals for mood stabilization. If a person isn’t battling the effects of depression, they may be more likely to find success when altering their normal nutrition habits to facilitate weight loss. Chocolate may in fact provide a chemical mood enhancement—something much more than a psychological connection as I mentioned in my last blog (namely tryptophan and endorphins).
I’ve really pondered this. The more I study parts of good nutrition, the more I am amazed at how complex the process can be. Although some diet plans may claim rapid weight loss, the long-term effect of such plans can have adverse consequences to one’s health and emotional well-being. Especially in light of how consuming certain foods affect the natural mood chemicals of the brain.
These are some of the ideas I’ve learned about this weekend:
• Carbohydrates are necessary for good nutrition. It seems the best nutritional approach is one that incorporates proteins, carbs, and fats.
• Simple carbs have their place in good nutrition, but an effort should be made to utilize complex carbs more frequently. When choosing simple carbs processed sugars should be avoided as much as possible. Although simple carbs can give a more immediate benefit of energy, they are more short-term in nature than complex carbohydrates. Your body will use the simple carbs faster, but then will crave more when their immediate benefit has depleted.
• Carbs and proteins are best not taken together. Protein can actually block the chemical benefits of carbohydrates on your brain. (Amazing….think about all the ways we fix carbs and protein together in typical combinations.)
I’m not an expert and I have much more to learn, but articles such as the three I offer below may be helpful to you. (They have been very interesting and helpful to me.) I need to commit to regular study of nutrition—if I really want to maintain a healthy body; I better learn how to do it.
Take care,
Kirk
Simple vs. complex carbohydrates
by Lynn Grieger, R.D., C.D.E.
Many people are confused about the differences between simple and complex carbohydrates and many popular diet books seem to only make it more confusing.
Carbohydrates are one of three macronutrients in our diets that provide calories. The other two are protein and fat. Carbohydrates provide most of the energy needed in our daily lives, both for normal body functions such as heartbeat, breathing and digestion and for exercise such as cycling, walking and running.
Carbohydrates are considered simple or complex based upon their chemical structure and both types contain four calories per gram. Both are also digested into a blood sugar called glucose, which is then used to fuel our bodies for work or exercise.
In the past few years, simple carbohydrates have become known as the ‘bad’ carbs, while complex carbs seem to be designated as the ‘good’ ones. Although this is based on more hype than science, here are the reasons why:
Simple carbohydrates are digested quickly. Many simple carbohydrates contain refined sugars and few essential vitamins and minerals. Examples include fruits, fruit juice, milk, yoghurt, honey, molasses and sugar.
Complex carbohydrates take longer to digest and are usually packed with fiber, vitamins and minerals. Examples are vegetables, breads, cereals, legumes and pasta.
Most experts recommend that 50 to 60 per cent of the total calories in our diet come from carbohydrates. The bulk of the carbs we consume should be complex and most of the simple ones should come from fruits and milk or yogurt, which also contain vitamins and minerals.
Avoid getting the bulk of your carbs from refined foods high in sugar, since they are usually low in the nutrients we need to maintain health and energy levels.
http://www.ivillage.co.uk/dietandfitness/nutrition/carbs/qas/0,,249_156580,00.html
What’s the Difference Between Simple and Complex Carbohydrates?
By Debra Manzella, R.N., About.com
Carbohydrates are divided into two types, simple and complex. The classification is based on the chemical structure and reflects how quickly sugar is digested and absorbed.
Simple carbohydrates are also called simple sugars and are chemically made of one or two sugars. A simple sugar can be just what the name implies, the sugar in your sugar bowl. Things like candy, syrups, and soda pop are also straightforward examples of simple carbs. They are absorbed quickly — just think how fast sugar-based candy melts in your mouth.
Simple carbs also include foods such as fruit and milk. These are better sources of simple carbs because they contain vitamins and fiber, and also important nutrients that your body needs, like calcium.
Complex carbohydrates are also known as starches and are made of three or more linked sugars. Grains such as bread, pasta, oatmeal and rice are complex carbs, as well as some vegetables like broccoli, corn, legumes such as kidney beans and chick peas. They take the longest to digest.
http://diabetes.about.com/od/carbohydratefaq/f/typesofcarbs.htm
Carbs are essential for effective dieting and good mood, Wurtman says
Elizabeth A. Thomson, MIT News Office, February 20, 2004
During the current low-carb/pro-protein diet craze, carbohydrates have been demonized — accused of causing weight gain and blamed as the reason people can’t lose weight. Do they deserve this stigma? Not according to MIT researcher Judith Wurtman.
Wurtman, director of the Program in Women’s Health at the MIT Clinical Research Center, and colleagues have found that when you stop eating carbohydrates, your brain stops regulating serotonin, a chemical that elevates mood and suppresses appetite. And only carbohydrate consumption naturally stimulates production of serotonin.
“When serotonin is made and becomes active in your brain, its effect on your appetite is to make you feel full before your stomach is stuffed and stretched,” said Wurtman. “Serotonin is crucial not only to control your appetite and stop you from overeating; it’s essential to keep your moods regulated.”
Antidepressant medications are designed to make serotonin more active in the brain and extend that activity for longer periods of time to assist in regulating moods. Carbohydrates raise serotonin levels naturally and act like a natural tranquilizer.
Wurtman’s husband, Richard Wurtman, the Cecil H. Green Distinguished Professor at MIT and the director of the Clinical Research Center, along with former graduate student John Fernstrom, discovered that the brain makes serotonin only after a person consumes sweet or starchy carbohydrates. But the kicker is that these carbohydrates must be eaten in combination with very little or no protein, the Wurtmans’ combined research determined.
So a meal like pasta or a snack of graham crackers will allow the brain to make serotonin, but eating chicken and potatoes or snacking on beef jerky will actually prevent serotonin from being made. This can explain why people may still feel hungry even after they have eaten a 20-ounce steak. Their stomachs are full but their brains may not be making enough serotonin to shut off their appetites.
And what do protein dieters (especially women) miss most after the second week? Carbohydrates. Women have much less serotonin in their brains than men, so a serotonin-depleting diet will make women feel irritable.
“There are people we call carbohydrate cravers who need to eat a certain amount of carbohydrates to keep their moods steady,” said, Wurtman, co-founder of Adara, a weight-management company whose programs are based on her research. “Carbohydrate cravers experience a change in their mood, usually in the late afternoon or mid-evening. And with this mood change comes a yearning to eat something sweet or starchy.”
Thus, it’s not just a matter of will power or mind over matter; the brain is in control and sends out signals to eat carbohydrates. According to Wurtman’s clinical studies, if the carbohydrate craver eats protein instead, he or she will become grumpy, irritable or restless. Furthermore, filling up on fatty foods like bacon or cheese makes you tired, lethargic and apathetic. Eating a lot of fat, she said, will make you an emotional zombie.
“When you take away the carbohydrates, it’s like taking away water from someone hiking in the desert,” Wurtman said. “If fat is the only alternative for a no- or low-carb dieter to consume to satiate the cravings, it’s like giving a beer to the parched hiker to relieve the thirst — temporary relief, but ultimately not effective.”
http://web.mit.edu/newsoffice/2004/carbs.html
Excerpt from “Chocolate,” homepage of Chocolate.org
Chocolate also contains tryptophan. Tryptophan is an essential amino acid. It is the rate-limiting step in the production of the mood-modulating neurotransmitter serotonin. Enhanced serotonin function typically diminishes anxiety. Yet tryptophan can normally be obtained from other sources as well; and only an unusually low-protein, high-carbohydrate meal will significantly increase its rate of intake into the brain.
Like other palatable sweet foods, consumption of chocolate triggers the release of endorphins, the body’s endogenous opiates. Enhanced endorphin-release reduces the chocolate-eater’s sensitivity to pain. Endorphins probably contribute to the warm inner glow induced in susceptible chocoholics. This sensation explains why chocolate gifts are a great way to bring joy to a loved one.
http://www.chocolate.org/