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Nutrition and Weight Loss > Healthy Eating > Nutrition News > How Genes Influence Your Diet
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How Genes Influence Your Diet

Genes, Diet and Nutrigenomics: The new science behind how your diet and genes interact.

By Denise Lynn Mann

Nutrigenomics – a relatively new science that examines how your genes interact with the food you eat – is finding that one size (so to speak) definitely doesn’t fit all. For example, do you eat healthy but still carry some extra pounds, while your friend eats all she wants and stays a size 6? What’s in your DNA could explain why. Although still in its infancy, nutrigenomics suggests that a personalized diet, coupled with advice on disease prevention, may hold the key not only to weight loss but to avoiding some chronic diseases, such as diabetes, heart disease – and maybe arthritis, too.

Examining diet and genes is an active area of research. Some studies have shown that people with specific genes are especially susceptible to effects of fat in their diet, for instance. Other research has shown that people with a different gene can reduce their risk for colon cancer by adding more vitamin D to their diet, whereas others without the gene wouldn’t see the same benefit.

The holy grail is a personalized diet, says Michael Falk, PhD, executive director of the nonprofit Life Sciences Research Office in Bethesda, Md. Current dietary recommendations are geared toward the average person.

Scientists haven’t gotten that far yet, because the interactions between genes are so complex, and because your environment as well as your genes influences your food choices. But that’s not stopping some biotech companies from selling genetic tests to consumers. Swab your cheek, mail it to the lab and get a detailed report on your genetic predisposition to several diseases as well as a nutritional plan to help combat them for anywhere from $100 to $1,000

Frances in California
18 Aug 2010, 17:18
Gee . . . sounds helpful; how soon do you think Kaiser will pick up the option? Yeah, about as soon as they put in an exercise pool for us arthritics (no, we have to "have" one or go to public pool).
Elaine
16 Aug 2010, 23:53
The article tends to oversimplify the complexity of digestion. It does not even mention the millions bacteria between the mouth and colon that help us to digest the food we eat. The balance between our genes our food and all of the different types of bacteria is amazing but a dose or two of antibiotics can set everything awry. We know that preservatives discourage bacterial growth of the bad bacteria that cause food to spoil, but what do they do to the bacteria in our body. After all yogurt, which is essentially spoiled milk is supposedly good for us. And a simple viral illness or round of antibiotics for an infection can cause an overgrowth of the wrong bacteria which can take months to recover from. If you feed the good bacteria the worng things they get out of balance.

My balance of bacteria, like my genes is unique to me and begins when I am colonized during my trip through the birth canal. Add in my unique diet and the simple solution of a diet prescribed based on my genes is suddenly quite complicated.
Ina
16 Aug 2010, 13:24
I am lucky to have someone on my side who introduced me to vegan lifestyle about 6 months ago. I got fybromyalgia, osteoarthritis,rheumatoid arthritis...you name it.
Eating raw, trying to avoid all these chemicals they put on us, buying organic food,eating smaller portions through the day, is helping me already.
It is our responsibility to ask for better food in the stores, not to support the junk food industries, to support farmers who try to produce better vegetables, fruits and grains without all that poison, and become more educated about the food we eat and need.
We are after all the People of America and we should be able to be proud of Our Country.
We definitely need big CHANGE in our food supply and in what we need to survive as a Healthy Nation. Go for it !
v. sullivan
16 Aug 2010, 00:40
I agree with D Olsen. People with any type of ailment or disease need to stop eating MSG, high fructose corn syrup ( its in cereal, crackers, bread,etc!!! that's ALOT of sugar!!!) They should also avoid any and all preservatives, sea salt, fructose, sucrolose, aspartame, malted barley flour. I could go on, but you get the idea. I had trouble with my weight but since I eliminated these additives and commercial prepared food, I have started to lose weight and have more energy than I thought possible. It doesnt have to be expensive, I eat many raw veggies & fruits and have a minimal serving of fish or chicken. I have also eliminated margarine from my family's diet. My son left a tub outside & the flies would land on it, but nothing would eat it & it didn't even mold! What is in there??? We need to pay more attention to what we eat. I also agree w/the post about flouride. I recently found out it does cause cavities, so I switched back to baking soda & salt. You never know anymore do you???
Susan
13 Aug 2010, 21:33
An interesting read is "Eating Right For Your Blood Type" by Dr. Peter J. D'Adamo. It discusses the 4 blood types, and the type of diet best suited for it. Following it has lowered my blood pressure, cholesterol levels and lose weight, all of which helped to reduce the pain associated with OA.
David
13 Aug 2010, 20:24
Be careful with the commercial genetic profiles. Recent studies have questioned the accuracy and thus the usefulness of these tests. The FDA is keeping a close eye on companies offering the service...some are fly-by-night firms looking to make a quick buck while others have legitimate technology but questionable outcomes. More research is needed before this technology is worthwhile.
D Olsen
12 Aug 2010, 19:41
I lament with all folks who want to improve their health, especially by food eaten.

Shame on the FDA, Agriculture Dept. and Government for poisoning America - with junk food (some I don't even consider food), pesticides, chemicals, etc. I even buy distilled water now - the only way to get fluoride out (it has been proven to not be beneficial for cavity prevention after about age 6; dental community knows, but won't share info with public).

I believe that it is a God-given right that all people deserve good, wholesome and healthy food. It should not cost so much! It seems a person needs a 2nd job just to pay for the healthiest foods. Ever wonder why the marginalized folks today are often more sick and more obese than folks better off? All they can afford is the junky non-nutritious "food" stuff.

My family will continue to try to buy the best food possible, mostly organic. We shop several stores for the best buys. We have chosen to give up other things in our lives in order to afford better food, which we feel is more important.

Good luck to all in your healthy pursuits!
CommonSense
12 Aug 2010, 14:52
It isn't too much dairy and red meat that is causing obesity, it's too much period.

Look closely at any thoughtful, nutritionaly sound diet and it calls for no more than three ounces of red meat or just about any protein.

There are no silver bullets, one recommendation fits all solutions, or one way to healthy salvation. There are many and each of us has to learn what is best for ourselves.

I'm an omnivore, but that doesn't mean half pound double cheeseburgers, it means balancing a variety of foods including fruits and vegetables along with fish, poultry and red meat. And doing all of it in sensible portions.

The only recommendation I've seen agreement on from the majority of dieticians and nutrionists (certified ones with real educations, not self-styled)is to eat smaller amounts, avoid too much processed foods and sugars, and eat small amounts more frequently rather than three larger meals a day.

Time for my mid-day snack of peaches.
K.T. Lund
12 Aug 2010, 11:03
I have Celiac disease and as a consequence osteoporous and severe arthritis in my hip. I refuse to take many drugs, especially those for osteoporous and steroids or cortizone.

For my arthritis and to control my weight, I eat little sugar, little salt, little dairy, and rarely processed foods. I take a water exercise class 3 times a week, which helps mobility and stretches my body. It also offers social contacts with others often worse off than I am. I also swim laps after my class, about a quarter of a mile. On days I can't go in the water, I walk for 30 minutes.

I spend 15 minutes a day in the sun to get Vitamin D and it pays off according to my last blood test. I have low blood pressure and low cholestral and I never eat any gluten.

I do imagery, meditate, and tai gong. I try to be positive and laugh and enjoy life. I don't dwell on the past or worry about the future. I take Tylenol for my arthritis pain about three times a week on the advice of my orthpedic doctor. I also take acupuncture once a month.

A simple diet helps me. I do eat fish at least once a week, salmon and tuna mostly, and chicken once a week. I do sin by eating gluten-free cookies or gluten-free candy for a treat now and again. I have a ground lamb patty which is hormone free as a treat occasionally.

I took a class about living with chronic conditions, which helped me learn to do just that.
Tammy
12 Aug 2010, 10:46
I totally agree with Becky. Since I became vegan I lost the overweight and kept it off for almost 15 years. I also lowered my cholesterol, blood pressure, improved my digestion, my previous allergies are virtually gone and have more energy. No effort involved: just substitute milk products for either: soy milk, rice milk, almond milk or even coconut milk (in moderation) Since I am lactose intolerant I skip all dairy products as well. But I can eat ALL vegetables, all fruits, grains, legumes, seeds, nuts, sprouts, whole cereals and do not miss the meat. I challenge anyone to try the vegan diet for a week or two and experience the benefits. Have a complete blood work before and after and see for yourself. You have nothing to loose and will discover how delicious being vegan can be.
Melody
12 Aug 2010, 10:23
Can you give us the name or contact information of the entities who can provide this service? Frankly $1000 is cheap for a personal prescription designed to boost your immune system and identify those foods which weaken you physically. I live in a family of 7 and know first hand that food susceptability differs drastically in each individual. Whether it be gluten, starch, carbs, protein, etc. That's why there's thousands of diets. No one size fits all.
ChrisF
12 Aug 2010, 10:09
It isn't just blood type, because I am an O, as well, and certainly can't scarf down chocolate cupcakes and not gain weight. I tried eating what the blood type diet book recommended and I couldn't take all the beef. I do better if I just try to eat things without any added processing - lots of fruits and vegetables and whole grains and plain chicken or fish.
Janet
12 Aug 2010, 09:44
Unemployed since January- so I like the option of internet resources. I walk daily now but the weight stays on...is it diet, stress, dna, all? I favor a program where I can plug in my personal info and out pops a specialized nutritional plan.
Feather
29 Jul 2010, 18:35
Raw, Raw, Raw- honey, milk, grains and meat are the best and healtyiest thing on this planet, yes fattie but look up your heritage and discover who you are dicendant of- what they ate, what was safe for them to eat is probably what you have enherited. Plane and simple. you are what you eat. Learn from the past because its litterally what made you today. Being indigenious american eatting fattie foods for me; comodaties, pasta, pan-fried and battered foods made me obiece. Transformed my diet when i got RA and been eating buffalo, fish from my own habitat, rabbit, deer and grous for meats. so far the greens grown above ground, roots, all fruites and raw grains like oats and groats i can eat. no milk, sugar, and flours i cant eat too much of because i get sick and flare ups from. so go to show you are what you eat.
Becky
22 Jul 2010, 19:33
I think a lot of the obesity epidemic is caused by the consumption for too much meat and dairy products. Having done a little experimenting with myself, I would most likely benefit from a vegan diet. (I carry a lot of belly fat). I've wondered for years if the medical community had something like a customizable diet.
Billie Vazquez
06 Sep 2009, 08:34
It is a shame everything has a catch and cost something.The world is becoming insanely obesse.Some of us want to change and work on a healthier diet and even the food is so high priced now day its hard to eat whats good for you. I tried to garden this year,just a few thing,but to buy good dirt because yours is bad is hard for someone who only makes less than 20,000 a year.Everything has so much chemicals,I mean why do we need so much food coloring in everything.Juices should be natural and stop adding all that sugar to them and making them a sugar drink.Not everyone can afford to pay to learn how to cook healthier.Sometimes you cant get a good answer from you some doctors. Thank god for internet,I am learning to utilize it. New to it,but iam leanrning.
chris
02 Sep 2009, 18:15
Some work in the area of origin and diet seems to indicate that your blood type dictates the diet that will work best for you. Eat Right For Your Type (book, and cds) Dr. Peter J. D'Adamo) is pretty interesting and explains why my blood type O husband can scarf down Little Debbie's Chocolate Cupcakes and not gain weight, while I as a blood type A can't get away with that.
Marie Taylor
01 Sep 2009, 16:53
This is too "iffy" for the price - whether $100 or $1000. Who has that kind of mind to throw around?
It is better to accept your genetic code, do what you need to do to lose weight, and be satisfied with a healthy body.

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