Adrenal fatigue and hypothyroidism are caused by not eating enough carbohydrate. Candida overgrowth often coincides because body temperature has fallen, metabolism has slowed down, and basic immune functions have become compromised.
A diet of only 25 grams of carbs per day will only worsen these conditions as well as candida overgrowth. Keep in mind that candida thrives on low carb diets because they only weaken the immune system. You cannot starve candida because candida has mitochondria and does just fine on fatty acids alone.
To beat candida and heal your thyroid and adrenals you should eat a high carb diet. Focus on eating fruits and raw honey as opposed to starches, but white rice can usually be tolerated as well. You need to eat a lot of carbohydrate to make your immune system strong once again. Coconut oil and high quality salt can also help.