Plant-Based Diet

At its best, a plant-based diet is based on whole, minimally processed plant foods: vegetables, fruit, whole grains, legumes, nuts, seeds and healthy plant oils with no (or little) animal products. It’s an adaptable, cheap, evidence-based way of eating that supports your health and has a lower environmental impact. 

Does an Apple a Day Keep the Doctor Away?

A review of the health benefits of eating apples daily. Learn whether the classic “apple a day keeps the doctor awy” advice holds true.
Read Article

Plant-Based Protein: What Everyday Foods Deliver

Plant proteins are often lower in quality and harder to digest than animal proteins — but with the right know-how they can be just as good.
Read Article

The 3 Healthiest Vegetables Around

Discover the 3 healthiest vegetable groups backed by research and some great recipes: cruciferous vegetables, leafy greens, and alliums.
Read Article

Health Benefits of Leafy Greens

An overview of leafy greens, highlighting their cardiovascular, blood pressure, and bone health benefits, with practical tips for incorporating nutrient-rich greens into daily meals.
Read Article

Which Colour Vegetables are Healthiest?

Learn why eating rainbow-coloured vegetables matters for health. Get phytonutrient-rich recipes for each colour to optimise your nutrition.
Read Article

The Half-Plate Rule: The Simplest Way to Eat More Vegetables

Learn the half-plate rule for eating more vegetables. Evidence-based guide with three filling recipes to help you meet daily vegetable targets.
Read Article

High-Protein Plant-Based Meal Plan: 7 Days of Recipes

Here’s a complete 7-day high-protein plant-based meal plan with 7 detailed recipes, a shopping list and expert tips.
Read Article

Why Seasonal Vegetables May be Healthier

Discover why eating seasonal vegetables benefits your health and the planet. Your guide to seasonal produce with recipes for each seasons.
Read Article

Mostly vegetables, fruits, whole grains, legumes (beans, lentils, peas), nuts, seeds and plant oils; many people also use fortified plant milks, tofu/tempeh and whole-food meat alternatives for variety and protein.

Minimise or avoid highly processed foods (refined grains, sugary snacks, ultra-processed meat substitutes) and reduce intake of foods that contain few nutrients ("empty calories"); if you're vegan, you'll be avoiding animal products like meat, dairy and eggs.

Plant-based eating are linked with lower risk of heart disease, hypertension and type 2 diabetes. They often cost less per meal when based on staples (grains, legumes) and typically have a smaller environmental footprint than diets high in animal products.

Pay attention to protein quality, vitamin B12, iron, calcium, iodine, vitamin D and omega-3s; include fortified foods or supplements where needed and combine different plant species (i.e., grains, cereals and legumes) to meet protein requirements.

Potential pitfalls include nutrient shortfalls (notably B12 and iodine) if unplanned, risk of over-reliance on processed substitutes, and practical/social inconveniences; these are manageable with planning, fortified foods and supplementation.

OTHER PLANT-SLANT DIETS

Blue Zone Diet: A Review ★★★★☆

Eating habits drawn from the world's longest-lived populations — plant-rich, moderate, and deeply sustainable.
Read Article

DASH Diet: A Review ★★★★★

A clinically developed eating plan with some of the strongest evidence for blood pressure and heart health.
Read Article

Mediterranean Diet: A Review ★★★★★

The most extensively researched dietary pattern in the world — and one of the most consistently recommended.
Read Article

Okinawa Diet: A Review ★★★★☆

The traditional eating pattern of one of the world's longest-lived populations is low-calorie, mostly plant-based.
Read Article

Ornish Diet: A Review ★★★☆☆

A clinically developed, very low-fat plant-based diet with strong evidence for reversing heart disease.
Read Article

Juice Diet: A Review ★★☆☆☆

A short-term liquid diet with popular appeal, limited evidence, and some noteworthy health concerns.
Read Article

Vegan Diet: A Review ★★★☆☆

A plant-only dietary pattern with meaningful health benefits and some important nutritional considerations.
Read Article

Fasting Mimicking Diet: A Review ★★★☆☆

A structured, periodic low-calorie protocol designed to trigger the benefits of fasting without full abstinence.
Read Article

Raw Food Diet: A Review ★★☆☆☆

A whole-food dietary pattern based on uncooked, unprocessed foods — with genuine benefits and real limitations.
Read Article

Our Editorial Approach

Alphabet Guides publishes practical evidence-based content using trustworthy, peer-reviewed research: information you can actually use. Learn more About Us and our Editorial Standards.