Calorie surplus = weight gain. Calorie deficit = weight loss. Meal frequency does not alter the energy balance equation.
Calorie intake, macronutrient and micronutrient sufficiency determines health NOT food name or type and NOT meal frequency.
Consuming your daily required calories, macronutrients and micronutrients is far more important than nutrient timing.
Foods should not be classed as clean or dirty. If you wash your food, then it is clean.
GI is meaningless in a mixed diet.
Unless you have multiple muscle glycogen depletion workouts in the same day for the same muscle group/s, replenishing muscle glycogen directly post workout is unnecessary.
Insulin is spiked anytime you eat/consume nutrients. Spiking insulin around training with 'simple carbohydrates' is unnecessary.