Most diets pale in comparison to the One Diet To Rule Them All – the Mediterranean diet – but scientists have just discovered how the much-maligned keto diet might help people with a relatively common autoimmune disease. Diets are only good if you can keep them up, and some of them are useless even then. The Mediterranean diet is good for people with diabetes, the DASH eating plan is best for lowering blood pressure, and going vegan may give you your best shot of living longer. So, what’s good about keto? Well, it could have huge health benefits for people suffering from a very specific condit…