broad spectrum, high strength sports multi, high in magnesium, antioxidants & vitamin d, designed by sports nutrition experts, manufactured to gmp standards, high in essential trace minerals, chromium, selenium & iodine at potent but safe levels. for more information, please read our vitamin d faq//b 111//class=f-brand!important multi-guard® sport has been created by sports nutrition experts to provide 26 vitamins & minerals & antioxidants at relevant levels, creating a product that can be used as the basic building block of a supplement regime tailored to your training & sporting goals.magnesium has been included at a high level as research suggests it's involved in electrolyte balance & normal energy-yielding metabolism. in addition, recent published studies on bone health mean that we have included vitamin d 3 & vitamin k at generous levels.this unique formula then takes the science a step further forward by including potent plant antioxidants. exercise generates an increased number of damaging free radicals which rapidly deplete the body's antioxidant reserves. so green tea, quercetin & other citrus bioflavonoids have been added to this already comprehensive multi-vitamin & mineral formula to make probably the best sports multi available in the uk.