Footballs' secret 'Ozempic'? Trendy herbal tea loved by South American stars like Lionel Messi could have slimming ...
Oozing an earthy smell and packing a bitter aftertaste strong enough to make you want to pour it down the sink, you'd be forgiven for assuming maté is your average herbal tea. But the powerful brew – loved in Argentina, where it's more popular than …