Health Optimization Hub
Healthy Living

Healthy Eating

Real food fundamentals, nutrition approaches, healthy cooking, shopping guides, and the ingredients and food categories that matter most for metabolic health.

Real FoodNutrition ApproachesHealthy CookingShoppingTopics of Interest

Real Food Fundamentals

The foundation of any healthy diet is food quality — not macronutrient ratios or calorie counting.

Whole Foods

Whole foods are foods that have been minimally altered from their natural state — vegetables, fruits, meat, fish, eggs, legumes, nuts, and seeds. They contain the full complement of nutrients, fiber, and phytocompounds that nature packaged together, and they are processed by the body in ways that support metabolic health.

Minimally Processed Foods

Minimally processed foods have been altered for preservation or convenience but retain most of their nutritional integrity — frozen vegetables, canned fish, plain yogurt, aged cheese, and fermented foods. These are distinct from ultra-processed foods, which are industrially manufactured with additives, emulsifiers, and synthetic flavors.

Reading Ingredient Labels

The ingredient list — not the nutrition facts panel — is the most important information on a food package. Ingredients are listed in descending order by weight. If sugar, refined flour, or seed oils appear in the first three ingredients, the product is likely nutritionally poor regardless of what the front label claims.

The NOVA Classification

NOVA classifies foods into four groups based on industrial processing. NOVA 1 (unprocessed) and NOVA 2 (culinary ingredients) form the foundation of a healthy diet. NOVA 3 (processed foods) are acceptable in moderation. NOVA 4 (ultra-processed) should be minimized — they are independently associated with obesity, metabolic disease, and all-cause mortality.

Nutrition Approaches

No single dietary approach is right for everyone. The best diet is one that supports your metabolic health, is sustainable long-term, and is built on whole, minimally processed foods.

Low-Carb

Reduces carbohydrate intake to 50–130g/day. Lowers insulin, improves glucose regulation, and promotes fat oxidation. Effective for metabolic syndrome, type 2 diabetes, and weight management.

Best for: Insulin resistance, metabolic syndrome, blood sugar management

Ketogenic

Very low carbohydrate (<30–50g/day), high fat, moderate protein. Induces nutritional ketosis — the liver produces ketone bodies from fat as the primary fuel source. Powerful for glucose control and neurological conditions.

Best for: Type 2 diabetes, epilepsy, metabolic health, cognitive performance

Ketovore

A hybrid of ketogenic and carnivore approaches. Primarily animal-based foods with some low-carb plant foods. Eliminates most plant antinutrients while maintaining ketosis.

Best for: Autoimmune conditions, digestive issues, those who thrive on animal-based nutrition

Mediterranean

Emphasizes olive oil, fish, vegetables, legumes, whole grains, and moderate wine. The most extensively studied dietary pattern for cardiovascular health and longevity.

Best for: Cardiovascular health, longevity, general wellness

High-Protein

Prioritizes protein at 1.6–2.2g per kg of body weight. Supports muscle protein synthesis, satiety, and metabolic rate. Particularly important for older adults and those doing resistance training.

Best for: Muscle preservation, body composition, satiety, healthy aging

Intermittent Fasting

Time-restricted eating patterns — 16:8, 18:6, OMAD, or 5:2 — that extend the overnight fast. Lowers insulin, activates autophagy, and improves metabolic flexibility. Compatible with most dietary approaches.

Best for: Metabolic health, insulin sensitivity, weight management, autophagy

Healthy Cooking

Healthy Fats

  • Extra virgin olive oil — best for low-to-medium heat cooking and dressings
  • Avocado oil — high smoke point, neutral flavor, good for high-heat cooking
  • Butter and ghee — stable saturated fats, good for medium-high heat
  • Coconut oil — stable for cooking, adds flavor to appropriate dishes
  • Animal fats (tallow, lard) — traditional cooking fats, highly stable at high heat

Cooking Oils to Avoid

  • Soybean oil — highest omega-6 content, highly inflammatory at scale
  • Canola oil — heavily processed, often partially hydrogenated
  • Corn oil — high omega-6, unstable at cooking temperatures
  • Sunflower oil — high omega-6, oxidizes readily when heated
  • Cottonseed oil — high omega-6, often contains pesticide residues
  • "Vegetable oil" — typically a blend of the above

Food Preparation Methods

  • Slow cooking (crockpot) — preserves nutrients, tenderizes tough cuts, minimal active time
  • Steaming — preserves water-soluble vitamins better than boiling
  • Roasting — concentrates flavors, minimal added fat needed
  • Sautéing in stable fat — quick, preserves texture and nutrients
  • Raw preparation — maximum enzyme and nutrient preservation for appropriate foods
  • Fermentation — increases bioavailability, adds beneficial bacteria

Shopping Guides

Grocery Shopping Principles

  • Shop the perimeter first — produce, meat, fish, and dairy are typically on the outer aisles
  • Buy the highest quality protein you can afford — grass-fed, pasture-raised, wild-caught
  • Frozen vegetables are nutritionally equivalent to fresh and often more affordable
  • Buy whole foods and prepare them yourself — pre-packaged "healthy" products are often not
  • Read ingredient lists, not nutrition labels — the ingredient list tells you what is actually in the food

Food Quality Hierarchy

  • Produce: organic for Dirty Dozen, conventional acceptable for Clean Fifteen
  • Meat: grass-fed/finished beef, pasture-raised pork and poultry when possible
  • Eggs: pasture-raised (not just "cage-free" or "free-range")
  • Fish: wild-caught over farmed for most species; farmed oysters and mussels are fine
  • Dairy: full-fat, grass-fed when available; avoid ultra-pasteurized

Label Interpretation

  • "Natural" — no regulatory definition; meaningless
  • "Healthy" — FDA definition is outdated and based on flawed fat science
  • "Multigrain" — multiple grains, but they may all be refined
  • "Made with whole grains" — may contain only a small percentage of whole grain
  • "No added sugar" — may still contain high amounts of natural sugar
  • "Low-fat" — fat is often replaced with sugar or refined carbohydrates

Topics of Interest

Key ingredients and food categories to understand when evaluating modern packaged foods.

Added Sugars

Added sugars appear under 50+ different names on ingredient lists. The average American consumes 17 teaspoons of added sugar per day — more than 3x the recommended limit. Added sugars drive insulin resistance, fatty liver, and metabolic syndrome independently of total caloric intake.

Watch for

High-fructose corn syrupDextroseMaltoseCane syrupFruit juice concentrateAgave nectar

Artificial Sweeteners

Artificial sweeteners (aspartame, sucralose, saccharin, acesulfame-K) provide sweetness without calories but have mixed evidence on metabolic health. Some studies show disruption of gut microbiome composition and impaired glucose regulation. Stevia and monk fruit are generally better-tolerated alternatives.

Watch for

Aspartame (Equal, NutraSweet)Sucralose (Splenda)Saccharin (Sweet'N Low)Acesulfame potassium (Ace-K)

Seed Oils

Industrial seed oils (soybean, canola, corn, sunflower, cottonseed) are high in omega-6 linoleic acid and are highly unstable when heated. They oxidize readily, producing aldehydes and other toxic byproducts. The dramatic increase in seed oil consumption over the past century parallels the rise in metabolic disease.

Watch for

Soybean oilCanola oilCorn oilSunflower oilCottonseed oilSafflower oil

Food Dyes

Synthetic food dyes (Red 40, Yellow 5, Yellow 6, Blue 1, Blue 2) are derived from petroleum and have been linked to behavioral effects in children, including hyperactivity. Several are banned in the EU but remain approved in the US. They serve no nutritional purpose — their sole function is visual appeal.

Watch for

Red 40 (Allura Red)Yellow 5 (Tartrazine)Yellow 6 (Sunset Yellow)Blue 1 (Brilliant Blue)Blue 2 (Indigo Carmine)

Preservatives

Many synthetic preservatives are potential endocrine disruptors or have other health concerns. BHA and BHT are listed as "reasonably anticipated to be human carcinogens" by the National Toxicology Program. TBHQ is associated with immune disruption. Sodium nitrate in processed meats forms nitrosamines during cooking.

Watch for

BHA (butylated hydroxyanisole)BHT (butylated hydroxytoluene)TBHQSodium nitrate/nitritePropyl gallate

Ultra-Processed Foods

Ultra-processed foods (NOVA 4) are industrial formulations containing ingredients not found in home kitchens — emulsifiers, artificial flavors, colors, and preservatives. They are engineered to be hyperpalatable and are associated with obesity, metabolic syndrome, cardiovascular disease, depression, and all-cause mortality in large prospective studies.

Watch for

Packaged snacks and chipsSoft drinks and energy drinksInstant noodlesMost breakfast cerealsFast foodFlavored yogurts with additives

Related Guides

Reading Labels

Ingredient scanners and NOVA scoring

Metabolic Health

Insulin resistance and glucose control

Healthy Home

Non-toxic cookware and water quality