As long as the pardon met the conditions of the Constitution, as discussed below, it would have to be found within the President's powers. Besides, it would require a case be first brought to the Court through appeal and the plaintiff would have to show injury from the pardon. I can't imagine what that would include.
Organic fruits and vegetables also contain higher amounts of Vitamin A, Vitamin C, and sulfur, which all boost liver detoxification and cleansing. Broccoli, Brussels sprouts, kale, collards, apples, onions, garlic, and squash are all great choices. Also see: 10 Foods to Cleanse and Care for Your Liver.
One of the best ways of using Turmeric to naturally detox your liver is to make a Turmeric tea. This is simply made by boiling 2 cups of water, and adding teaspoon of Turmeric, 1 tablespoon of unprocessed honey, and a good squeeze of fresh lemon juice.