Home > Diet and nutrition > Vitamins, minerals and supplements Updated 14 February 2013 Signs of magnesium deficiency Premenstrual headaches, nausea and vomiting, fatigue, insomnia, anorexia, rapid or irregular heartbeat, muscle weakness and cramps, high blood pressure, poor blood sugar control and personality changes. 0 Vit & Min doses per day » Count calories in food » Is my vegetarian diet balanced? » Ask The Dietitians » 10 foods to boost your immune system Your quick guide to Banting Premenstrual headaches, nausea and vomiting, fatigue, insomnia, anorexia, rapid or irregular heartbeat, muscle weakness and cramps, high blood pressure, poor blood sugar control and personality changes. NEXT ON HEALTH24X Noakes being charged for having different view – lawyer 2017-04-04 20:50 More: Diet and nutritionVitamins, minerals and supplements advertisement Read Health24’s Comments Policy Comment on this story 0 comments Comments have been closed for this article. Logout Comment 0 characters remaining Share on Facebook Loading comments... From our sponsors K Naomi takes a stand and shows women how to fight back WIN a R2000 Skin Renewal voucher! Constipation in women SA's old diesel vehicles continue to fuel allergies Live healthier Are you sure? » Aid your digestion What are digestive disorders? Are you really constipated? Many people think that if they do not have two or more bowel movements every single day of their lives they are constipated. This is patently not true, writes DietDoc. True of False? » SEE: How anaphylactic shock affects your body Stop believing these 10 allergy myths Do you still believe that hay fever is caused by hay? Or that food allergies are really common? No, and no again. We bust 10 myths about allergies.