Every year brings a new "best" way to eat, and honestly, most of them work for someone — just not for everyone. The eating pattern that helped your coworker drop 20 pounds might leave you exhausted and nutrient-depleted within a month. There's no single correct diet, only a better or worse fit for your body, your schedule, and your goals.
Below is a plain-English breakdown of the 10 eating patterns we get asked about most — what each one actually is, who tends to do well on it, the honest trade-offs, and which supplements commonly fill the gaps each one creates. This is general information to help you compare options, not a personalized recommendation — the right choice for you depends on factors a blog post can't account for.
⚠️ Not medical advice. This article describes common eating patterns and general observations — it is not a personalized nutrition or medical recommendation. Always talk to a doctor or registered dietitian before making a major change to your diet, especially if you have a health condition, take medication, or are pregnant or nursing.
1. Mediterranean Diet
Built around vegetables, fruit, legumes, whole grains, olive oil, and fish, with red meat and processed food kept occasional. It's less a strict "diet" and more a long-term eating pattern.
Who it tends to work for
People who want a sustainable, long-term approach rather than a short-term fix — and anyone prioritizing heart and brain health over rapid weight loss.
Pros
- One of the most researched eating patterns for cardiovascular health
- Flexible and easy to sustain for years, not just weeks
- No food groups eliminated entirely
Cons
- Not designed for fast or dramatic weight loss
- Relies on quality olive oil and fresh produce, which can cost more
Commonly paired supplements
- Vitamin B12 (fish intake varies person to person)
- Vitamin D3 (limited fortified dairy in strict versions)
- Omega-3 if fish intake is inconsistent
2. Intermittent Fasting (IF)
Not a diet in the traditional sense — it's a timing pattern. You eat within a set window (commonly 8 hours) and fast the rest of the day. What you eat during the window is up to you.
Who it tends to work for
People who do better with structure around when they eat rather than obsessing over what they eat, and anyone prone to mindless snacking late at night.
Pros
- Simple to follow — no food tracking required
- Can naturally reduce total calorie intake without conscious restriction
- Flexible around most food preferences
Cons
- Can be difficult to sustain around social meals and family schedules
- Not well suited for some people with a history of disordered eating
- Long fasting windows can affect focus and energy for some people initially
Commonly paired supplements
- Electrolytes (sodium, potassium, magnesium) during fasting windows
- Magnesium for sleep and muscle cramps
- B-Complex for energy during longer fasts
3. Ketogenic / Low-Carb
Very low carbohydrate, high fat, moderate protein — designed to shift the body's primary fuel source from glucose to ketones.
Who it tends to work for
People who respond well to appetite suppression from ketosis, and those managing blood sugar under medical supervision.
Pros
- Often reduces hunger and cravings once fat-adapted
- Can produce fast initial results (partly water weight)
- Well studied for specific medical uses beyond weight loss
Cons
- "Keto flu" — fatigue, headaches, cramps — is common in the first 1–3 weeks
- Very restrictive; hard to sustain at restaurants and social events
- Not appropriate without medical guidance for anyone on diabetes or blood pressure medication
Commonly paired supplements
- Magnesium (electrolyte loss is the main driver of keto flu)
- Sodium and potassium
- Vitamin D3 + K2
4. Plant-Based / Vegan
Excludes all animal products. A whole-food plant-based version emphasizes minimally processed vegetables, legumes, and grains rather than vegan packaged substitutes.
Who it tends to work for
People motivated by ethical, environmental, or long-term health reasons who are willing to plan meals more deliberately.
Pros
- Naturally high in fiber, antioxidants, and plant compounds
- Associated with lower risk of several chronic conditions when well-planned
- Generally the most affordable diet on this list
Cons
- Several nutrients are genuinely hard to get from plants alone
- Requires more meal planning to hit adequate protein
- Easy to over-rely on processed vegan substitutes if not careful
Commonly paired supplements
- Vitamin B12 (essentially unavoidable — not reliably available from plants)
- Iron and Zinc
- Omega-3 (algae-based)
5. Paleo Diet
Modeled loosely on pre-agricultural eating: meat, fish, eggs, vegetables, fruit, nuts, and seeds. Grains, legumes, dairy, and refined sugar are excluded.
Who it tends to work for
People who do well cutting processed food entirely and who don't rely heavily on grains or dairy as staples.
Pros
- Eliminates ultra-processed food almost entirely
- Naturally higher in protein and fiber from vegetables
- No calorie counting required for most followers
Cons
- Excludes legumes and whole grains, which have strong nutritional research behind them
- Can be expensive given the emphasis on quality meat and produce
- Cutting dairy entirely can reduce calcium intake if not replaced
Commonly paired supplements
- Calcium (if dairy is fully excluded)
- Vitamin D3
- Fiber, if vegetable intake is inconsistent
6. Carnivore Diet
The most restrictive pattern on this list: meat, fish, and other animal products only. Plants are excluded entirely.
Who it tends to work for
A small subset of people, often those who have already tried multiple eliminations and found symptom relief with an all-animal-food approach.
Pros
- Extremely simple — no food combining decisions
- Some people report reduced digestive symptoms during an elimination phase
Cons
- The most restrictive and least-studied long-term of any diet on this list
- Zero fiber and no plant micronutrients or polyphenols
- Difficult and expensive to sustain long term
Commonly paired supplements
- Vitamin C (normally supplied by fruit and vegetables)
- Magnesium
- A general multivitamin as a safety net
7. DASH Diet
Short for "Dietary Approaches to Stop Hypertension" — developed specifically to lower blood pressure through fruits, vegetables, whole grains, lean protein, and reduced sodium.
Who it tends to work for
People managing or wanting to prevent high blood pressure, and anyone who wants a doctor-studied, non-extreme eating framework.
Pros
- Backed by clinical research specifically for blood pressure
- Balanced — no food groups eliminated
- Easy to combine with other eating patterns on this list
Cons
- Requires tracking sodium, which takes more label-reading than other diets
- Less dramatic or fast in visible results
Commonly paired supplements
- Potassium and magnesium (both support healthy blood pressure)
- Omega-3
8. Low-FODMAP Diet
Originally developed by researchers at Monash University to manage IBS. It temporarily removes fermentable carbohydrates that commonly trigger bloating and digestive discomfort, then reintroduces them one at a time to identify personal triggers.
Who it tends to work for
People with diagnosed IBS or similar digestive conditions — this is the one diet on this list that's genuinely meant to be short-term and done with professional guidance, not a permanent lifestyle.
Pros
- Strong clinical research specifically for IBS symptom relief
- Structured reintroduction phase identifies actual personal triggers instead of guessing
Cons
- Restrictive elimination phase isn't meant to be permanent
- Best done with a dietitian rather than self-directed long-term
Commonly paired supplements
- Probiotics (specific strains, ideally guided by a professional)
- Fiber appropriate to the reintroduction phase
9. Whole30
A strict 30-day reset that removes added sugar, alcohol, grains, legumes, and dairy, followed by a structured reintroduction — designed as a short-term experiment, not a long-term diet.
Who it tends to work for
People who want a defined, time-boxed reset to identify how certain food groups affect their energy, skin, or digestion.
Pros
- Clear structure and a defined end date reduce decision fatigue
- Reintroduction phase can reveal personal food sensitivities
Cons
- Very restrictive for a full 30 days
- Not intended or well-suited as a permanent way of eating
- Social eating becomes difficult during the 30 days
Commonly paired supplements
- Calcium (dairy is excluded for the full 30 days)
- Vitamin D3
10. High-Protein Eating
Not a formal "diet" so much as a macro shift — deliberately prioritizing protein at each meal, often popularized recently through fitness and wellness content online. Common versions range from adding a protein source to every meal up to more structured high-protein templates.
Who it tends to work for
People focused on preserving muscle during weight loss, older adults working to offset age-related muscle loss, and anyone who finds protein keeps them fuller for longer.
Pros
- Protein is the most satiating macronutrient for most people
- Supports muscle maintenance, especially when combined with resistance training
- Flexible — can be layered onto almost any other diet on this list
Cons
- Very high intakes may be unnecessary or costly without a specific training goal
- Can crowd out fiber-rich carbohydrates if not planned deliberately
- Kidney disease patients should check with a doctor before increasing protein significantly
Commonly paired supplements
- Whey or plant protein powder to hit daily targets conveniently
- Creatine (well studied alongside higher protein intake and resistance training)
- Omega-3, since protein-heavy meals sometimes crowd out fatty fish
💡 The pattern across all 10: almost every popular diet creates the same handful of predictable gaps — magnesium, B12, vitamin D3, and omega-3 show up again and again, just for different reasons depending on what each diet removes. If you're not sure which of these actually apply to you, our free 60-second quiz factors in your age, gender, and goals to narrow it down.
Find supplements for any of these eating patterns on iHerb — 50,000+ products, ships worldwide.
Shop Supplements on iHerb →Sources
- Harvard Health Publishing — Benefits of a Mediterranean Diet
- Harvard T.H. Chan School of Public Health — Intermittent Fasting Research
- Cleveland Clinic — Low-FODMAP Diet Overview
- ClinicalTrials.gov — DASH Diet Study Record
⚠️ This article is for educational purposes only and does not constitute medical advice. It is not a personalized nutrition or medical recommendation. Always consult a qualified healthcare provider or registered dietitian before starting, stopping, or changing your diet — especially if you take prescription medications, are pregnant or nursing, or have an existing health condition.