Evidence-based healthy living

An elephant
never forgets
a good habit.

Trust Elephant sorts the nutrition noise into what's actually worth eating, what's worth skipping, and what's just loud marketing, all traced back to the research, not the trend.

Sourced & cited No fads Kitchen & home too

The herd's wisdom, not the hype cycle.

Every claim on this page traces back to a named institution or a dietitian speaking on the record: Harvard's Nutrition Source, the American Heart Association, the World Health Organization, the Ecology Center's lab testing. No single food fixes everything, and no single ingredient ruins everything either. That's the whole herd's worth of nuance, condensed.

Really great

Foods worth building a habit around

Harvard's Healthy Eating Plate remains the clearest evidence-based baseline in nutrition science, built without input from food-industry lobbyists, and updated as research evolves.

Vegetables & colorful produce

The largest section of the plate, on purpose. Variety matters more than any single "superfood." Different colors bring different fiber and disease-fighting compounds.

Fill half the plate with vegetables and fruit (potatoes don't count)
Source: Harvard T.H. Chan School of Public Health, Nutrition Source

Whole grains

Oats, farro, barley, quinoa, bulgur. Refined grains like white rice and white bread break down into blood sugar almost as fast as table sugar does.

Whole > refined, every time
Source: Harvard Health Publishing

Beans, nuts & legumes

Named alongside fish and poultry as the healthiest protein sources, well ahead of red meat and processed meat in the same category.

Swap in for red & processed meat
Source: Harvard Health Publishing

Fish & poultry

The Healthy Eating Plate singles these out as preferred proteins, recommending a cutback on red meat and an avoidance of bacon, cold cuts, and other processed meats.

Variety across proteins matters
Source: Harvard Health Publishing

Olive & other plant oils

Unsaturated, plant-based oils like olive and canola are the fats the Healthy Eating Plate recommends cooking with, a direct swap for butter, lard, and tropical oils.

Rich in unsaturated fat
Source: Harvard Health Publishing

Whole fruit, not fruit juice

Juicing strips out the fiber that slows sugar absorption. A single cup of orange juice carries roughly 8g of sugar, and apple juice close to 10g, with little to fill you up.

Whole fruit keeps the fiber intact
Source: Elior North America, health & nutrition team
Worth limiting

Foods the evidence keeps flagging

These aren't "never" foods for most people, but the research is unusually consistent about keeping them occasional rather than routine.

Sugar-sweetened drinks

Sodas and sweetened beverages are one of the biggest single sources of added sugar in the average diet, delivering calories with essentially no nutritional trade-off.

A major driver of added sugar intake
Source: American Heart Association; Harvard Nutrition Source

Processed & cured meat

Bacon, sausage, deli meats, and other cured products were classified as carcinogenic to humans after 22 scientists reviewed more than 800 studies.

Linked to ~7% higher colorectal cancer risk per typical daily serving
Source: WHO/IARC, via Harvard Nutrition Source; Think Global Health

Artificial trans fats

Found in fried foods, pastries, and some packaged baked goods. The body treats them worse than saturated fat, raising "bad" cholesterol while lowering the "good" kind.

A 2% rise in trans-fat energy intake ≈ 23% more cardiovascular risk
Source: WHO nutrition guidance; Think Global Health (2019 study)

High-sugar, high-salt ultra-processed food

Frozen pizza, packaged cookies, sweetened cereal: the kind of ultra-processed food that's genuinely closer to "junk," as opposed to convenience staples like plain yogurt or whole-grain bread.

Over 50% of average U.S. daily calories
Source: American Heart Association, 2025 scientific advisory
Over-emphasized

Health foods that outran their evidence

None of these are dangerous in normal amounts. The issue is the gap between how they're marketed and what dietitians can actually back up.

Coconut oil

Marketed for years as a "cleaner" cooking fat. It's almost entirely saturated fat, chemically closer to butter than to olive oil, and raises LDL cholesterol the same way other saturated fats do.

Olive, canola & avocado oil are the better-evidenced swap
Source: dietitian reviews via Elior N.A.; My Weight, What to Know

Celery juice cleanses

The trend traces back to a single wellness influencer with no medical training who says the recipe came from a spirit. Whole celery is a fine vegetable; juicing it just removes the fiber.

No clinical evidence for its cleanse or cure claims
Source: Today's Dietitian; The Biting Truth; UnityPoint Health

Detox teas & juice cleanses

No food, drink, or supplement "detoxes" the body; the liver and kidneys already do that continuously. Restrictive cleanses can disrupt metabolism and hormones instead.

Your organs are already on it
Source: The Biting Truth, registered dietitians

Collagen supplements

Marketed for skin and joints, but most of the ingested protein is broken down during digestion long before it could reach the skin as collagen.

Sunscreen & hydration do more, reliably
Source: dermatologist commentary, wellness-myth roundup

Apple cider vinegar, cure-all

Claimed to help digestion, metabolism, weight loss, and detoxification all at once. The research behind these specific claims remains thin and inconsistent.

Fine as a condiment, not a treatment
Source: The Biting Truth, registered dietitians
Beyond the plate

What your food touches matters too

Cookware and containers can leach chemicals into food, especially with heat, scratches, or acidity. Here's what environmental-health researchers and testing labs point toward.

🐘 Trunk-approved

  • Cast iron pans PFAS-free by nature, and properly seasoned, becomes naturally nonstick over time. Source: SF Dept. of Environment; Consumer Reports
  • Stainless steel cookware & containers Durable and scratch-resistant; doesn't leach the endocrine-disrupting compounds found in plastic. Source: Consumer Reports; NonToxicLab
  • Glass storage containers Chemically inert at any temperature. Won't leach, stain, or hold onto odors the way plastic can. Source: Environmental Working Group; NonToxicLab
  • PTFE-free ceramic-coated cookware Independent lab testing found this a genuinely lower-chemical route to a nonstick surface. Source: Ecology Center, "What's Cooking?" study

🚫 Best left behind

  • Scratched or aging Teflon-style pans Lab testing found most nonstick cookware uses a PFAS-based coating; scratches and high heat promote its release. Source: Ecology Center; SF Dept. of Environment
  • Plastic food storage, especially heated Leaches BPA, BPS, and phthalates into food, worse with heat or acidity, and microwaving can release billions of nanoplastics. Source: NBC Select; Environmental Working Group
  • "BPA-free" taken at face value Swapping in look-alike BPS or BPF doesn't remove the endocrine-disrupting effect; "PFOA-free" labels often still contain other PFAS. Source: NonToxicLab; ConsumerNotice.org
  • Reused single-use takeout containers Built for one use, they degrade fastest under repeated washing and reheating, shedding the most microplastic over time. Source: Environmental Working Group
Receipts

Sources