The loss of ability to absorb vitamin B 12 (B 12) is the most common cause of adult B 12 deficiency. Impaired absorption of vitamin B 12 may be due to a loss of intrinsic factor or to a number of other conditions that decrease production of gastric acid, which also plays a part in the absorption of B 12 from foods.
One of the best natural insect repellent is Lemon Balm. If you insist to go for organic route, Lemon Balm which contains high Citronellal contents is able to repel insects such as mosquitoes, flies, ants and etc. However, Lemon Balm does not deter butterflies or bees.
Protect yourself from mosquito bites. 1  Use insect repellents. 2  Repellents containing DEET, picaridin, IR3535, and some oil of lemon eucalyptus and para-menthane-diol products provide long lasting protection. 3  If you use both sunscreen and insect repellent, apply the sunscreen first and then the repellent. 4  Do not spray insect repellent on the skin ... Do not spray insect repellent on the skin under your clothing. 2  Treat clothing with permethrin or purchase permethrin-treated clothing. 3  Always follow the label instructions when using insect repellent or sunscreen.