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Vol. I  ·  No. 1  ·  The Marsden Kitchen
The Test Kitchen
Personal Edition
Reference plate  ·  The taxonomy in full

The Safe Matrix.

An exhaustive catalogue of every ingredient that crosses the threshold of this kitchen — and every ingredient that does not.

The matrix is organized by stoplight. Green-light foods are the daily staples — fully cleared on all axes: inflammatory, genetic, gut, histaminic. Yellow-light foods are technically permitted but require either strict portion control or a specific preparation method to remain safe. Red-light foods are hard stops — they contain direct triggers, and there are no exceptions.

Use this page as a reference when planning a meal, ordering groceries, or evaluating an unfamiliar recipe. The Green column should furnish about 90% of the household pantry. The Yellow column should be approached with the discipline of a portion scale and a stopwatch. The Red column is to be treated as if those ingredients did not exist.

Green light

The daily staples

Safe, nutritious, and fully clear on all inflammatory, genetic, and gut-level criteria.

Proteins fresh / IQF only

  • Chicken breast
  • Chicken thighs
  • Ground turkey
  • Turkey breast
  • Wild salmon flash-frozen at sea
  • Wild halibut
  • Wild shrimp
  • Optimal Amino powder

Vegetables & aromatics

  • Fennel bulb primary aromatic base
  • Zucchini & summer squash
  • Cucumbers
  • Carrots
  • Celery
  • Asparagus
  • Raw broccoli sprouts

Starches & complex carbs

  • Sweet potatoes fully cooked, never raw
  • Cassava root pure

Fats & oils

  • Avocados
  • Extra virgin olive oil
  • Avocado oil

Fruits

  • Fresh or frozen berries raspberry, blueberry, blackberry
  • Fresh apples
  • Fresh pears
  • Fresh grapes

Aromatics & acids

  • Fresh ginger primary sharp aromatic
  • Fresh lemons
  • Fresh limes

Fresh herbs

  • Cilantro, basil, parsley
  • Mint, dill
  • Rosemary, thyme
  • Sage, oregano

Spices

  • Cumin
  • Coriander
  • Turmeric
  • Ceylon cinnamon
  • Pure sea salt

Yellow light

Proceed with caution

Technically safe, but require strict portion control or a specific preparation method.

Cook before eating gut protection

  • Mature broccoli steam, pressure, roast only
  • Cauliflower same — never raw
  • Cabbage braised or cooked, no raw slaw

Portion-controlled fruit fructose & FODMAP

  • Peaches limit ½ to 1 cup, fresh or frozen
  • Mangoes limit ¼ to ½ cup, fresh or frozen

Fat & condiment caps saturated fat watch

  • Coconut oil use sparingly
  • Coconut aminos use sparingly
  • MCT oil 1 tbsp maximum per day
  • Pork rinds watch total fat intake
  • Cassava chips avocado / coconut oil only

Leftover discipline histamine protection

  • Chicken bone broth keep volume moderate
  • Cooked meat leftovers freeze immediately after cooking
  • Cooked meat thaw rapidly right before eating; never multi-day in the fridge

Red light

Strict avoidance

Hard stops. Direct triggers — alliums, nightshades, seeds, legumes, grains, histamine bombs, intolerances.

The alliums

  • Onions red, white, yellow, green / scallion
  • Garlic
  • Leeks & shallots
  • Onion powder & garlic powder

The nightshades

  • Tomatoes incl. paste, sauce, ketchup
  • White, red, yellow potatoes
  • Bell peppers, jalapeños, serranos
  • Eggplant
  • Chili powder, paprika, cayenne, red pepper flakes

The seeds & their oils

  • Chia, flax, sesame
  • Sunflower, hemp, pumpkin seeds
  • Tahini
  • Canola, safflower, sunflower, sesame oil

The legumes & grains

  • All beans black, pinto, garbanzo
  • Peas & pea protein isolate
  • Lentils
  • Soy edamame, tofu, soy sauce
  • All grains wheat, corn, oats, rice, quinoa

Dairy & eggs

  • All dairy milk, cheese, butter, whey
  • All eggs whole, whites, mayonnaise

Restricted meats

  • Beef high arginine
  • Canned fish salmon, tuna, sardines — histamine
  • Cured meats, bacon, deli, jerky histamine & hidden spices

Fungi & algae

  • All mushrooms
  • All seaweed & kelp

All ferments

  • Kimchi, sauerkraut
  • Kombucha
  • Kefir, yogurt

Dried fruit

  • Dried mangoes, peaches, raisins, cranberries sulfites