Many people like to buy vitamins and mineral supplements from the pharmacy. It is usually because we hear that certain vitamins and minerals are good for us and we feel that they are typically less harmful than drugs. There are general guidelines on daily intakes of vitamins and minerals depending on your age and your gender. However, there are still individual factors in terms of your health and medications that one should consider along with the general guidelines recommendations.
For example, should people with high risk of kidney stones be taking the same amount of calcium as everyone else? Do people with chronic liver disease know that they have to be cautious of the total amount of vitamin A in all their supplements? There are also drug interactions with vitamins and minerals. A common example would be the interaction between thyroid medication and calcium.
The best thing to do is to ask your pharmacist before purchasing vitamins and supplements!
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A genetic testing technology is now available in Canada to identify your inborn predispositions to nutritional needs. This can help you understand if you are more prone to be deficient in certain vitamins and minerals. Rather than randomly buying supplements, this is a more personalized method to address your unique body needs. The genetic test can also help you identify the type of diet and exercise that are most effective in weight loss based on your unique genetic composition. Scientific research have shown a diet that is appropriate based on your genetic composition is 2-3 times more effective in weight loss, compared to a diet that is inappropriate to your genetic composition.1
If you are not sure if a diet is right for you, perhaps it is best to find out first before spending time and money on something that may not be right for you. More information is available at http://www.genedecode.ca/
Reference: 1. Nelson MD, Prabhakar P, Kondragunta V, et al. Genotype patterns predict weight loss success: The right diet does matter. EPI|NPAM 2010; March 2-5, 2010, San Francisco, CA.