Will Brink posted this link to a new study.
24 Mar 2016 --- Research findings published in PLOS ONE have highlighted the need for vegans to get nutrition guidance and to use recommended nutrient supplements.
Vegans adhere to nutrition recommendations in varying degrees, according to a new Finnish study. Some vegans who participated in the study followed a balanced diet, while others had dietary deficiencies.
Typical deficiencies were an unbalanced use of protein sources, a low intake of berries, fruits and nuts, as well as failure to use nutrient fortified food products. The majority, however, used vitamin B12 and D supplements and calcium-fortified drinks as recommended.
Serum vitamin D concentrations were below the reference values in 24% of the vegan group. They also had lower concentrations of beta-carotene, selenium, iodine and essential fatty acids than the control group following a non-vegetarian diet.
Vegetarian and vegan diets are increasingly common in western societies. However, in order to ensure the intake of all the necessary nutrients, vegetarian and vegan diets need to be composed in a well-rounded manner. Research into the nutritional status of vegans nevertheless remains scarce.
The study analyzed the nutritional status of young adults who had been following a vegan diet for an average period of eight years. The study involved six male vegans and 16 female vegans, and the matched control group comprised eight men and 11 women who followed a non-vegetarian diet. The researchers were especially interested in the intake and concentrations of nutrients that are limited or lacking in vegetarian foods, for example vitamin B12, vitamin D, selenium, iodine and essential fatty acids. The food intake of the study participants was analyzed from three-day food records, and their nutritional status was measured from blood and urine samples.