I think they are both safe. as for quantity, a lot of people esp those who are particularly sensitive to IF have found that it's not enough for you to have enough SF with IF, the overall amount of IF within a meal must also be kept low. E.g. Syl is v careful with his diet in this regard and does not for instance have spinach, even though it is FODMAP greenlighted. Half a cup of spinach has 0.5g SF and 1.1g IF. If I want to be extra safe I'd eat it with around 0.5g SFS and I have no trouble. (But Syl for instance restricts his IF intake to a lot less than 1.1g IF per meal.) Depends on the individual.