I was having a conversation with a some Christian friends about the "perfect" diet. We quickly came to the conclusion that while some foods are nutritionally superior (and others hardly qualify as "food"), there's no such thing as the perfect diet.
That's because there are no perfect foods—all of our food is grown in a post-Fall, imperfect world. After Adam and Eve sinned, God declared that the ground was cursed (Genesis 3:17). So all of the edible plants in the world have been growing from cursed ground since that time. All animals have eaten those plants, and carnivores have eaten other animals that ate the plants. In essence, all vegetables, fruits, grains, meat, and animal products (e.g. milk, butter, lard) are contaminated.
Though every food is contaminated, eating it generally doesn't result in immediate death! That's because food itself doesn't kill us. Not even Krispy Kremes.
God had told Adam, "[The ground] will grow thorns and thistles for you, though you will eat of its grains" (Genesis 3:18). God provided a source for food, so Adam wouldn't starve, and God also made the food edible (not poisonous/deadly) so Adam wouldn't keel over after the first time he ate food that he'd grown for himself, from the cursed ground.
But this food that Adam works for isn't like the food of Eden. And while there certainly are very nutritious foods available to us today, even our so-called superfoods aren't like the fruit that grew from the Tree of Life. All of our food comes from cursed ground, and there are no meals available on earth that can keep us in perfect health and provide eternal life.
It's God who provides health and life to us, until the day He has designated for each person to die. While food certainly can be an idol, or something that we make to be greater than God, it isn't the true source of life or the true cause of death.
We can honor God by eating foods that we know will best satisfy the body's nutritional requirements. By doing this, we recognize that God's design of the body is good. Eating well, then, is an act of worship.