Is a teaspoon of olive oil a day healthy?

I suppose so - in moderation, there is nothing unhealthy about olive oil. But I would always prefer to get olive oil from food, like salad dressing, dipping sauce, in cooking

Makes sense

It's actually bad for your heart.

Depends entirely on the olive oil I'd say. A lot of the stuff on Australian shelves is fake rubbish.

If it's pure olive oil, and you don't have much because of the fat and calories, I'd say you're fine. It is plant based fat

Might taste pretty awful if you just take it straight up though.

Yea, I just was interested

I can't see it really bein harmful, if you're going to take it as a health benefit/supplement I would suggest hemp oil though. It's very good for you and has a fantastic balance of omega 3 & 6.