After twenty years of face, tongue, and fingernail analyses — and the thousands of conversations that go with them — I can tell you the foods that show up in my consultations over and over. Not exotic toxins. Not things hiding in fine print. Ordinary foods, eaten daily, quietly working against your energy, your sleep, your digestion, and how you feel in your own body.
Here are the five I see most — and what I suggest instead.
1. Refined sugar — especially the sugar you don’t call sugar
The dessert you enjoy on Sunday is not the problem. The problem is the sugar you eat all day without noticing: flavored yogurt, granola, “healthy” cereal, bottled sauces, coffee drinks. It adds up to a body that never gets a break from the sugar rollercoaster — and you feel it as the 3 p.m. crash, the cravings, the restless sleep.
Instead: eat fruit when you want sweetness, and read every label for the first two weeks. Most of my clients are shocked at where sugar hides.
2. Industrial seed oils
Soybean, canola, corn, cottonseed, sunflower — the oils in nearly every restaurant fryer, snack bag, and salad dressing. These are recent arrivals in the human diet, heavily processed, and in my practice they’re one of the first things I remove.
Instead: cook the way your great-grandmother did — tallow, lard, or butter. Traditional fats, stable at heat, that the body has known for generations. I don’t recommend cooking with oils of any kind, including the fashionable ones.
3. Ultra-processed “convenience” foods
If the ingredient list reads like a chemistry set, your body treats it like one. Packaged snacks, frozen meals, meal-replacement bars — they’re engineered to be eaten fast and craved often, and they crowd real nourishment off your plate.
Instead: the simplest rule I give clients: shop for ingredients, not products. If it had a mother or came from the ground, you’re on the right track.
4. Artificial sweeteners
Zero calories is not the same as zero consequences. Clients who lean on diet sodas and sugar-free everything tell me the same story: cravings never quiet down, and real food starts tasting bland.
Instead: step down gently — sparkling water with lemon, herbal teas, and small amounts of honey where sweetness matters. Give your taste buds three weeks; they recalibrate beautifully.
5. Gluten — in everything
Bread, crackers, pasta, wraps, pastries — for many people it’s the backbone of every single meal. Refined flour behaves much like sugar once it’s in the body, and it displaces the vegetables, proteins, and traditional fats that would actually carry you through the day.
Instead: build meals around a protein and two vegetables first. Flour-based foods become the occasional guest, not the foundation.
Where to start (without overwhelming yourself)
Don’t remove all five at once. Pick the one you recognized yourself in most, remove it for three weeks, and pay attention to your energy, your sleep, and your mood. That’s real data about your body — the kind no lab report gives you.
Want the quick-reference version? I built an interactive chart: Sabotage vs. Support: The Food Swap Chart. And if you’d like to know which of these matters most for you specifically, that’s what a face, tongue & fingernail analysis is for. Ready when you are: book your consultation here.
Naturopathic Doctor Randi Shannon, ND — Doctor of Naturopathy, Trinity School of Natural Health. This article is education, not medical advice — bring anything here to your own doctor. If you’re managing a health condition, especially kidney disease, discuss food changes with your medical team first.