I'm not really a fan of Dr. Oz. He is a bit of a quack, jumping from fad to fad.
I think the pills you are talking about may be green tea extract. I have to tell you, I've never found any supplements that really helped me lose weight. I think eating a low carb diet can be really effective for weight loss. As a T2 and being insulin resistance it stands out even more. I've also had good luck with Intermittent Fasting. One day a week, I skip breakfast and dinner, doing a 24 hour fast (usually on the weekend). Beyond the weight loss, I think it has helped me learn to better deal with hunger.