About food, women generally know some common sense, such as which foods brighten the complexion, which cause weight gain, and which lead to pigmentation and dark spots. However, they may not be as well-versed in how to combine them. In reality, some foods are nutritionally complete on their own, but when paired with others, they can have a significant "skin-damaging" effect.
Cake + Tofu
This is related to food classification. One method categorizes foods as either concentrated or non-concentrated. Besides fruits and vegetables, all other foods like meat, dairy, and grains are considered concentrated foods.
The food combining method advocates that within the same meal, you should only have one concentrated food paired with vegetables. Tofu, which is rich in protein, and cake, which is starchy, are both concentrated foods. Eating them together will inevitably lead to weight gain.
Soda + Chocolate
Regardless of the flavor, chocolate is a high-calorie, high-sugar, and high-fat food and should not be consumed with sugary drinks like soda or juice. Pairing chocolate with a cup of hot tea is a good choice.