On Wednesday of this week, I had the pleasure of speaking at the Maine Nutrition Council’s Annual Conference. One of the major themes of the day was how genes - the units of DNA in cells (with the exception of red blood cells) that determine particular characteristics - influence health, and how what we eat affects genetic “expression.” Your genes interact with their environment, which could lead to beneficial effects, or not.
What does that all mean? Take type 2 diabetes as an example. To “get” diabetes, you need the gene for it plus a “trigger” to turn the gene on. In type 2 diabetes, that trigger is nearly always excess body fat.
So, if you have the gene for diabetes and become overweight, your blood glucose (sugar) level can be excessively high, endangering your health. When you lose excess body fat, however, your blood glucose levels are likely to decrease, and even return to normal. You still have the gene for diabetes, but achieving and maintaining a healthy weight has “silenced” it.
During pregnancy, DNA synthesis is occurring at breakneck speed as the baby develops by leaps and bounds. For my part at the Maine Nutrition Council’s symposium, I spoke about how certain nutrients are involved in genetic expression during pregnancy. Folic acid, choline, and other B vitamins interact with your baby’s genes, and help him to develop normally, in part because they are involved in turning on good genes and silencing the ones that can harm your child. Read more about choline here. Only 1 in 10 women, pregnant women, and nursing women get the choline they need every day.
The research about how food and genes interact is fascinating, and we keep learning more every day. After listening to Colleen Draper, MS, RD, who I admire for her passion and knowledge on the topic of how food and genes interact, I had a thought: maybe someday, dietary recommendations for calcium, choline, carbs, protein, and all the other nutrients will be based on your unique genetic profile. It’s not as far-fetched as it sounds, and I am sure it’s not an original idea, either!
Until that day, women, pregnant, nursing, or not, should try to adhere to the current dietary recommendations to create the most favorable environment for their child, or child-to-be.
Have you seen my other blog at USATODAY.com? It features tips for feeding your family healthy foods, and offers a weekly recipe that I prepare with my children as part of Cooking With My Kids. This week’s recipe is Chicken & Dumplings. Get the recipe, and many more at http://tinyurl.com/4×2e5x