Food is generally the most common cause of anaphylaxis. Common food triggers include nuts, shellfish (shrimp, lobster), dairy products, egg whites, and sesame seeds. Wasp or bee stings are also common causes of anaphylaxis.
The maximum daily intake of vitamin B6 is 30 milligrams for children aged 1-3 years, 40 milligrams for children aged 4-8 years, 60 milligrams for children aged 9-13 years, and 80 milligrams for adult males and females and pregnant or breastfeeding females aged 14-18 years.or nausea and vomiting of pregnancy, the following doses of vitamin B6 have been taken by mouth: 25 milligrams every eight hours for 72 hours; 10 milligrams of pyridoxine HCl every eight hours for five days; and 100 milligrams daily for seven days.
Vitamin A. The upper limit for vitamin A is set at 3,000 micrograms per day. The risks of consuming excess amounts of the vitamin include liver problems, nausea, vomiting, headache, blurred vision, skin abnormalities and nervous system disorders.he upper limit for niacin is 35 milligrams. Excess amounts can cause gastrointestinal problems and redness of the face and neck, which is called flushing. The upper limit for vitamin B-6 is set at 100 milligrams per day.