Vitamin A deficiencies can occur for many reasons including low dietary intake or problems with fat absorption. (parsleyhealth.com)
Efficacy and safety of lowering dietary intake of fat and cholesterol in children with elevated low - density lipoprotein cholesterol. (cebp.aacrjournals.org)
Risk of dietary deficiency for flavonoids is basically synonymous with low dietary intake of whole, natural foods, and in particular, low intake of vegetables and fruits. (whfoods.org)