- Magnesium supports energy and bone health. - Found in spinach, nuts, seeds, and wholemeal bread. - UK adults need 300mg (men) or 270mg (women) daily. - Excess supplementation can cause diarrhoea, nausea, and cramping. - Severe toxicity may lead to low blood pressure, irregular heartbeat, and breathing issues. - Limit supplements to under 400mg per day to avoid toxicity. 2/4