Navigation Links
One size does not fit all: Dietary guidelines for choline may be insufficient
Date:3/27/2014

What is now considered to be the "right" amount of the essential nutrient, choline, might actually be "wrong," depending on who you are. That's because scientists have found that the "right" amount of choline needed by an individual is influenced by a wide range of factors, including gender, life stage, race and ethnicity of the individual. This means that using the current one-size-fits-all approach to determining a person's vitamin and mineral needs may leave them in less than optimal health. Choline is an essential nutrient used by the body to construct cell membranes and is necessary for the health of vital organs and muscles. This finding was published online in The FASEB Journal.

"Our study shows that gender, life stage and genetic makeup influence the requirement for choline in humans," said Kerry-Ann da Costa Ph.D., a researcher involved in the work from the Department of Nutrition at the University of North Carolina, Chapel Hill. "We hope that it will focus attention on setting the dietary recommendations at a level that is high enough to meet the needs of those with the greatest requirements for choline."

To make this discovery, da Costa and colleagues analyzed healthy men and women who were fed a baseline diet containing 550 mg choline/day (the adequate intake level set by the Institute of Medicine) for 10 days. Then they were put on a low choline diet (50 mg choline/day) for up to 42 days, and monitored for increased liver fat and changes in liver and muscle function. If they developed clinical symptoms, choline was returned to their diet until these symptoms resolved. Subjects were categorized by symptoms liver, muscle or none. DNA isolated from their blood was examined for 200 single nucleotide polymorphisms or SNPs in 10 choline-related genes to see which ones were associated with liver or muscle damage compared to the people with no symptoms. Several SNPs were identified in women that alter their risk when they are on a low choline diet. Other SNPs in the choline transporter gene SLC44A1 and choline kinase beta gene (CHKB) were identified in the people with muscle damage compared to the rest of the study participants. Researchers then looked at these SNPs in European-, Mexican-, Asian- and African-Americans and in individuals of African descent, and found that the distribution was often quite different between the groups.

"Getting the right amount of choline is important, and also important is this study which shows that each person has unique nutritional needs. Today's dietary guidelines are approximations at best, and one size does not fit all," said Gerald Weissmann, M.D., Editor-in-Chief of The FASEB Journal. "As we move toward an age of personalized medicine, studies like this should make it possible for health care professionals to judge how much of each nutrient your particular body needs."


'/>"/>
Contact: Cody Mooneyhan
cmooneyhan@faseb.org
301-634-7104
Federation of American Societies for Experimental Biology
Source:Eurekalert

Related biology news :

1. Zebrafish research shows how dietary fat regulates cholesterol absorption
2. Neuroprotective dietary supplements for chronic spinal cord injury
3. Research provides new insights into dogs natural feeding behavior and finds they target a daily dietary intake that is high in fat
4. New health-economic model shows benefits of boosting dietary calcium intake
5. Dietary shifts driving up phosphorus use
6. International study: Excess dietary salt may drive the development of autoimmune diseases
7. Canadians support interventions to reduce dietary salt
8. National survey highlights perceived importance of dietary protein to prevent weight gain
9. Dietary flexibility may have helped some large predators survive after last ice age
10. Studies support population-based efforts to lower excessive dietary sodium intakes
11. Enrollment in SNAP does not substantially improve food security or dietary quality
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/22/2016)... 20, 2016  As part of its longstanding mission to ... genetics company, recently released its latest children,s book, titled ... focuses on the topics of inheritance and variation of traits ... taught in elementary school classrooms in the US. ... illustrator Ariana Killoran , whose previous book with 23andMe, ...
(Date:12/16/2016)... --  IdentyTechSolutions America LLC , a leading provider ... a cutting-edge manufacturer of software and hardware security ... integrated solutions that comprise IDT biometric readers and ... IdentyTech,s customers with combined physical identification and anti-tailgating ... theft. "We are proud to use ...
(Date:12/15/2016)... ... and Markets has announced the addition of the "Global Military Biometrics ... forecasts the global military biometrics market to grow at a CAGR of ... prepared based on an in-depth market analysis with inputs from industry experts. ... coming years. The report also includes a discussion of the key vendors ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... and HOUSTON , ... ("NX Prenatal") today announced the formation of its ... leading clinicians and industry veterans who enhance the ... as it accelerates development of its novel prenatal ... provide medical, clinical and strategic guidance for the ...
(Date:1/19/2017)... ... January 19, 2017 , ... ... software to leading biopharmaceutical and medical device manufacturers and regulators, is proud to ... CFR Part 11-compliant email client designed to provide product vigilance departments with the ...
(Date:1/19/2017)... ... 2017 , ... The American Medical Informatics Association (AMIA) today ... Policy. Specifically, the nation’s leading informatics experts, said data sharing plans should be ... recommended that NIH earmark funding for researchers to produce and execute data sharing ...
(Date:1/19/2017)... 18, 2017 The global biotechnology services ... billion by 2025, according to a new report ... been adaptive of the function of outsourcing certain ... Among the services outsourced, clinical trial management and ... & Johnson was the first pharmaceutical company to ...
Breaking Biology Technology: