There is none. Period. Period and exclamation mark! Why always frown upon something good in your life? Injury because of your diet. Stomach virus caused by your diet. Immune system drop on account of diet. Insomnia because of diet.
We are witnesses of a modern day nutrition where, a choice of macro nutrients (carbs, fat) is irrelevant for a source of energy. Can I lose weight if I eat Nutella? Of course. Can I gain weight if I eat almond? Of course. Because... a calorie is a calorie and as long I'm in a deficit I'm gonna lose weight. Correct.