hey guys i am quite confused about low and high gi foods
which would be better for you when trying to bulk up and minimize fat gain
. to eat complex carbs such as brown bread and potatoes and pastas which have a moderate gi indexl.
OR
. to eat carbssuch asfruits yoghur milk sweet potatoes, and fruits which have sugar but a low gi index

All of those things have a place in a healthy diet.

hey guys i am quite confused about low and high gi foods

All of those things have a place in a healthy diet.

Which further drives home the fact that GI based diets are not the way to go. Use them as a guide, nothing more.
KISS method works best. Healthy foods, reasonable portions consisting of mostly complex carbohydrates, fruits, veg, protein and healthy fats. Paired up with a solid consistent weighlifting routine.

GI goes out the window once foods are combined. Usually lowering. ie. you rarely eat just one thing after an 8 hour fast. So GI is a tool nothing more.

This link helps: http://www.nutritiondata.com/glycemic-index.html

For what it’s worth, my personal opinion and preference on this is to eat the 'complex' carbs (including sweet potato) around workouts, and the 'sugary', low GI ones throughout the day.

Sugar throughout the day???? Ahh, BUT the amount of sugar in fruit is low, so unless you are eating a huge amount (and you should still be making a protein source the basis of the meal - I don't consider an apple + nuts to be a 'meal') it won't matter one little bit. Again, you would be eating these with protein, fats, veggies etc..

I'd put sweet potatoes and oats into the 'complex' category, although I'm much more likely to have sweet potato or brown rice as a carb, even on non-workout days than pasta, oats bread etc..

Now I’m not saying this ‘really matters’, just my preference and what I feel best doing. I do agree with Gordo though - perhaps it is all in my head, or just more a function of the total amount of carbs I tend to eat (i.e an apple is usually less carbs than a bowl of oats).