B Type Weight loss

Hi, I'm a Type B, new on this diet. I don't know if I´m secretor or not, since here where I live they don´t have the test at labs. I'd like to know if there are some foods or food-combinations to avoid when trying to lose weight. I'm really interested on keeping healthy, but I definitely need to lose weight.
Now I'm doing the Type B diet, with combinations like animal-animal vegetable-vegetable and fruits taken alone, not combined with other fruits or food.

Thanks for your comments, I'm sure they will help me a lot. Tweet