{"id":8856,"date":"2018-08-07T22:33:59","date_gmt":"2018-08-07T22:33:59","guid":{"rendered":"https:\/\/www.humnutrition.com\/blog\/?p=8856"},"modified":"2019-11-14T02:07:57","modified_gmt":"2019-11-14T02:07:57","slug":"nutrigenetics","status":"publish","type":"post","link":"https:\/\/www.humnutrition.com\/blog\/nutrigenetics\/","title":{"rendered":"Nutrigenetics: Can DNA Testing Tell You What to Eat?"},"content":{"rendered":"Nutrition advice that’s as personalized as it gets.\r\n\r\n\r\nWe meet with clinical nutritionist Alyson Roux<\/a>. Her specialty? Optimizing diets with DNA interpretation. Watch our experience in the video above, or keep reading for an in-depth look at this new science and our results!\r\n

First, What Is Nutrigenetics?<\/h2>\r\nNutrigenetics studies how our individual gene variations can influence how we respond to diet and nutrition.\r\n\r\n“We used to think that genetics were destiny,” Alyson tells us. “We thought, here’s your code and it is what it is<\/em>. But that’s not actually the case.” In reality, our lifestyle plays a much more important factor. Examining the DNA merely shows us where we’re more susceptible to imbalances and can take extra care.\r\n\r\n“If you imagine the enzymes in your body,” Alyson explains, “you want them to be doing their job all the time. If all is well, an enzyme is doing its job at a rate of 100 percent efficiency. But if you have a mutation in one of the many genes that code for this enzyme, it may only be working at 50 percent efficiency. The whole purpose of what we call nutritional genetics is to see how can we get those enzymes to work at 100 percent efficiency.”\r\n\r\n\"Nutrigenetics\r\n

The Process<\/h2>\r\nTo get started, Sarah and I both take a 23andMe test. When our results arrive six weeks later, we download the raw genetic data and send it to Alyson for interpretation. Alyson runs the data through the Methyl Genetics Nutrition Analysis<\/a>.\r\n\r\nWhile you can also run your raw data through free online resources like Genetic Genie<\/a>, working one-on-one with an expert ensures you’re getting the full picture. Typically, Alyson spends a lot of time talking about family history and any existing concerns before diving into any results. She’s also very careful about how she presents information so as to not cause anxiety.\r\n

Genetics 101<\/h2>\r\nEssentially, we have two copies of every gene: one each from paternal and maternal DNA. You can either have two copies that match (homozygous) or two different copies that complement each other but don’t match (heterozygous).\r\n\r\nYou can also be homozygous in what we call “wild type.” This is when you have the typical, most common presentation of the gene. In our results, Alyson compares what’s wild type with what may potentially promote some health implications. “When you have a non-wild type gene code that you inherit from your maternal or paternal side, that might slow down the metabolic activity of an enzyme.”\r\n\r\nIn our results, Alyson looks at a few key micronutrients’ SNPs. “A SNP (single-nucleotide polymorphism) is a single little mutation that can change how your body metabolizes a certain nutrient\u2014but only if it’s triggered.” In other words: why your lifestyle is still the most important determining factor.\r\n\r\nAs she continues to explain, it’s helpful to clarify that a homozygous mutation means the enzyme efficiencies can be impacted a little bit more than a heterozygous mutation, so we want to pay careful attention to those.\r\n

My Results<\/h2>\r\n“You have a few heterozygous mutations that code for a specific enzyme that helps convert \u03b1–<\/em>ketogluterate into succineal Co-A,” Alyson tells me. (See why we recommend getting an expert to help you decipher your results?) It means if I’m having difficulty with energy\u2014especially while exercising\u2014I might support the enzyme with Vitamin B6<\/a>.\r\n\r\n\"Lack\r\n

via giphy<\/a><\/p>\r\nThen she points out a couple homozygous SNPs in one of the categories that helps with sulfation. For this, she recommends looking at my protein<\/a> intake to ensure that I’m meeting all of my amino-acid needs.\r\n\r\nAs we move along to my B12 SNPs, Alyson flags another mutation. “You have a homozygous mutation in MTR, which is pretty important.”\u00a0 She recommends getting my B12 levels<\/a> checked at my annual physical and to supplement if low.\r\n\r\n“You also had two heterozygous MAT mutations,” she says. “This one is really important. It codes for the enzyme that activates SAMe, which is later involved in neurotransmitter synthesis.” It also helps to produce and regulate hormones. “If there were a lot more and if someone had a significant mood disorder, that would be something to focus on by incorporating more methionine rich foods.” You can also drink mineral water with a high lithium content like San Pellegrino to assist in the process.\r\n\r\nOne last mutation she found was with COMT, which helps break down dopamine and adrenaline. Left unchecked, these hormones can keep us in an anxious state. This enzyme helps to breaks down that neurotransmitter and uses magnesium and SAMe to do that. “While the mutation here is super common, because you might also have a SAMe production issue, we want to look more closely. It’s a great example of how you can’t just look at one part of the code; you have to look at how it all works together.”\r\n

Sarah’s Results<\/h2>\r\nThe first thing Alyson sees in Sarah’s results is actually a lack of mutations. “There’s an enzyme that helps us convert vitamin A from plants. You have none of the mutations in that enzyme which is fairly rare. Usually people who don’t have any of those mutations can get away with being a vegetarian.”\r\n\r\nSarah does have several superoxide dismutase SNPs. “This is where you want to prioritize antioxidants,” Alyson says. “There’s some research showing that people with a lot of these SNPs don’t do well with HIIT-style workouts and are more suited for long-distance running.” Fittingly, Sarah is herself a long-distance runner and has completed several marathons!\r\n\r\n\"Sarah\r\n\r\n“I recently did some blood work and I do have high levels of oxidative stress,” Sarah confirms. “I thought it was related to the excessive running, but maybe it’s just my genes!”\r\n\r\nAlyson also points out to a few detoxification-related SNPs. “In particular, you have a few in the liver enzyme, so you could support that detoxification pathway with milk thistle<\/a>.”\r\n\r\nSarah had wild-type genes when it came to B12 and vitamin D<\/a>. Indeed, in Sarah’s recent blood work she shares that her D was at a healthy level without needing to supplement, which is no small feat.\r\n\r\n“It’s a very new science,” Alyson admits. “The literature exists and we have evidence, but it’s still limited. It’s really important to interpret with that caveat. However, it can be a real game changer if you’re really struggling with optimizing how you feel.”\r\n\r\nFollow Alyson on Instagram<\/a> to learn more about her practice or visit her website<\/a>.<\/em>\n
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\n\t\t\t\t\t\t\t731 Reviews\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t
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Nutrition advice that’s as personalized as it gets.<\/p>\n","protected":false},"author":13,"featured_media":12200,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_toc_level":"h2","_toc_min":2,"footnotes":""},"categories":[832,831],"tags":[1130,1129,1033,750,1128,633],"coauthors":[],"class_list":["post-8856","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-experts","category-science","tag-alyson-roux","tag-deficiencies","tag-genetics","tag-milk-thistle","tag-nutrigenetics","tag-testing"],"acf":[],"yoast_head":"\nNutrigenetics: Can DNA Testing Tell You What to Eat? | HUM Nutrition Blog<\/title>\n<meta name=\"description\" content=\"Nutrition advice that's as personalized as it gets. 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