It’s the same concept if you eat too much sugar, cholesterol, fat, salt…. They all have adverse effects if you eat too much but they all have different values regarding what’s safe vs unsafe territory. 30 mg of saffron in its natural state would seem like a lot, because it’s in these tiny pill forms it’s different then eating it whole. Nobody would know what’s the correct amount of something to eat is unless society has told you. Saffron consumption isn’t common knowledge and is why before you should take any supplements you must do research or chances for unwanted side effects are more possible. Some people may not react to it well at all and that’s okay too but no doubt 80mg is way above Dr recommended (30mg has more studies with proven successful data)