It is advised to eat low value GI foods - apparently a diet should mainly consist of food stuffs with a GI value of less than 56.
That seems simple enough however there is also GI loading; I am not sure what this is but it seems to suggest that quantity with reference to the GI value plays a part in the choice of foods. So a small quantity of a food with a high GI value is better than a large quantity of food with a low value. Or is it?
Furthermore the food mix seems to influence the GI value. Watermelon, with a high GI value, becomes a low GI food when it is eaten with (for instance) apple.
Maybe someone can clarify all this for me. Thank you.