Editing Nori (section)

== Nutrition ==
[[File:Nori for Sushi micro photo 200x.jpg|thumbnail|Nori sheet under a microscope, 200 times magnification]]
Raw seaweed is 85% water, 6% [[protein]], 5% [[carbohydrate]]s, and has negligible [[fat]]. In a 100 gram reference amount, seaweed is a rich source (20% or more of the [[Daily Value]], DV) of [[vitamin A]], [[vitamin C]], [[riboflavin]], and [[folate]]. Seaweed is a moderate source (less than 20% DV) of [[Niacin (nutrient)|niacin]], [[iron]], and [[zinc]]. Seaweed has a high content of [[iodine]], providing a substantial amount in just one gram.<ref>{{cite web |url=https://ods.od.nih.gov/factsheets/Iodine-HealthProfessional/ |title=Iodine Fact Sheet for Health Professionals |publisher=National Institutes of Health |date=February 11, 2016 |access-date=May 1, 2016}}</ref> A 2014 study reported that dried purple laver ("nori") contains [[vitamin B12]] in sufficient quantities to meet the [[Reference Daily Intake|RDA]] requirement (Vitamin B12 content: 77.6 μg /100 g dry weight).<ref>{{Cite journal|last1=Watanabe|first1=Fumio|last2=Yabuta|first2=Yukinori|last3=Bito|first3=Tomohiro|last4=Teng|first4=Fei|date=2014-05-05|title=Vitamin B12-Containing Plant Food Sources for Vegetarians|journal=Nutrients|volume=6|issue=5|pages=1861–1873|doi=10.3390/nu6051861|issn=2072-6643|pmc=4042564|pmid=24803097|doi-access=free}}</ref> By contrast, however, a 2017 review concluded that vitamin B12 may be destroyed during [[metabolism]] or is converted into inactive B12 [[structural analog|analogs]] during drying and storage.<ref name="BitoTeng2017">{{cite journal| vauthors=Bito T, Teng F, Watanabe F| title=Bioactive Compounds of Edible Purple Laver Porphyra sp. (Nori) | journal=J Agric Food Chem | year= 2017 | volume= 65 | issue= 49 | pages= 10685–10692 | pmid=29161815 | doi=10.1021/acs.jafc.7b04688 | type=Review }}</ref> The [[Academy of Nutrition and Dietetics]] stated in 2016 that nori is not an adequate source of [[vitamin B12]] for humans.<ref name="MelinaCraig2016">{{cite journal|vauthors=Melina V, Craig W, Levin S|year=2016|title=Position of the Academy of Nutrition and Dietetics: Vegetarian Diets|journal=J Acad Nutr Diet|volume=116|issue=12|pages=1970–1980|doi=10.1016/j.jand.2016.09.025|pmid=27886704|s2cid=4984228 |url=https://www.eatrightpro.org/~/media/eatrightpro%20files/practice/position%20and%20practice%20papers/position%20papers/vegetarian-diet.ashx}}</ref> {{failed verification|date=October 2024}}