The EFSA also considered the maximum safe intake and like the U.S. National Academy of Medicine, decided that there was not sufficient information to set an UL. Safety
In humans, there is no evidence for riboflavin toxicity produced by excessive intakes and absorption becomes less efficient as doses increases. Any excess riboflavin is excreted via the kidneys into urine, resulting in a bright yellow color known as flavinuria. During a clinical trial on the effectiveness of riboflavin for treating the frequency and severity of migraines, subjects were given up to 400 mg of riboflavin orally per day for periods of 3–12 months. Abdominal pains and diarrhea were among the side effects reported. Labeling
For U.S. food and dietary supplement labeling purposes the amount in a serving is expressed as a percent of Daily Value (%DV). For riboflavin labeling purposes 100% of the Daily Value was 1.7 mg, but as of May 27, 2016, it was revised to 1.3 mg to bring it into agreement with the RDA. A table of the old and new adult daily values is provided at Reference Daily Intake. Sources
The United States Department of Agriculture, Agricultural Research Service maintains a food composition database from which riboflavin content in hundreds of foods can be searched. The milling of wheat results in an 85% loss of riboflavin, so white flour is enriched in some countries. Riboflavin is also added to baby foods, breakfast cereals, pastas and vitamin-enriched meal replacement products.
Uterine hypoplasia, also known as naive uterus or infantile uterus, is a reproductive disorder characterized by hypoplasia of the uterus. It is usually due to pubertal failure/hypogonadism and may be treated with puberty induction using estrogens and/or progestogens. See also
Uterine hyperplasia
Uterine malformation


== References ==