Others who may be concerned about their nutritional status, but cannot afford individual testing and see if they show any signs of deficiency. These are not foolproof signs, however – the same symptoms can be produced by other forms of illness, and there are several deficiencies that do not appear in the table because they produce no clear-cut signs. But if you do show some of these signs, then there is a chance that you are lacking certain nutrients, especially if your diet has not been good. The simplest and cheapest answer is to take a general supplement. This may be slightly more expensive than run-of-the-mill vitamin tablets but it is far more likely to do you good – and not to do you any harm. It is also free of artificial colours, unlike most commercial preparations which come in lurid shades of red or orange as an indication of their health-giving properties! Avoiding colourings is important if you are embarking on an elimination diet.
One sign that you may notice is white spots on the fingernails. These can be an indication of zinc deficiency, and if you show no other deficiency signs, and generally eat a good diet, then taking a zinc supplement may be all you need to do. Zinc is relatively safe and non-toxic, so a sensible supplement is unlikely to do any harm.
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