Stanley Dining Stanley Hot Pink Quencher H2 Tumbler With Handle Poshmark Fly High in Style with our Air Force Travel Mugs Cuptify Drinking up to four cups of coffee a day 'has no health risks' but pregnant women should stick to three According to the U.S. federal dietary guidelines, three to five 8 ounce cups of coffee per day can be part of a healthy diet, but that only refers to plain black coffee. A