What Does Periwinkle Give to the Body?
                                
                                
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                                    5 min read                                
                            
                                Periwinkle refers to two distinct sources—the edible marine snail and the medicinal plant, most notably the highly toxic Madagascar periwinkle, *Catharanthus roseus*. Research has shown that alkaloids extracted from the plant have revolutionized cancer treatment, while the snail is a nutritious source of protein and omega-3s.