Plant-Based
Vegan Diet
Complete exclusion of all animal products (meat, fish, seafood, dairy, eggs, honey). All nutrition comes from plant sources: vegetables, fruit, legumes, whole grains, nuts and seeds.
The vegan diet excludes all animal products — meat, fish, seafood, dairy, eggs, honey and any food derived from animals. All nutrition comes from plant sources: vegetables, fruit, legumes, whole grains, nuts and seeds.
Veganism is both a diet and, for many practitioners, a broader ethical lifestyle encompassing clothing, cosmetics and other consumer choices. From a purely nutritional perspective, a well-planned vegan diet can be healthy at all stages of life — according to the position papers of major dietetic associations (Academy of Nutrition and Dietetics, British Dietetic Association). The key word is well-planned: without supplementation and careful nutritional knowledge, significant deficiencies are a real risk.
Vitamin B12 is the critical supplement — it cannot be obtained reliably from plant foods alone. Omega-3, vitamin D, iodine, calcium and iron may also require supplementation or careful food selection.
History and origin
The word “vegan” was coined by British woodworker Donald Watson in November 1944, when he and a small group of vegetarians who also avoided dairy founded the Vegan Society in the United Kingdom. Watson was dissatisfied with the vegetarian movement’s acceptance of dairy and eggs and felt a clear distinction was needed. He combined “veg” from vegetarian with “an” to form “vegan”, explaining that veganism begins with vegetarianism and takes it to its logical conclusion.
The Vegan Society published its first newsletter, The Vegan News, and began the slow process of building a movement. For decades, veganism was extremely marginal — a 1960s survey estimated fewer than 100,000 vegans worldwide. Growth was gradual through the 1970s–1990s, driven by the animal rights movement (particularly Peter Singer’s Animal Liberation, 1975) and health consciousness.
The explosion came in the 2010s. The Cowspiracy documentary (2014), What the Health (2017) and the Netflix documentary The Game Changers (2019) drove huge interest in veganism through environmental and health arguments. Google Trends shows searches for “vegan” grew tenfold between 2004 and 2020. In the UK, vegan food product launches increased by over 1,000% between 2012 and 2019. Today veganism is mainstream in many Western countries, with extensive food industry investment in plant-based alternatives.
+ What you eat and what you avoid
✓ What you eat
- Vegetables and fruit (all types)
- Legumes (beans, lentils, chickpeas, tofu, tempeh, edamame)
- Whole grains (oats, rice, quinoa, buckwheat, bread)
- Nuts and seeds (walnuts, almonds, chia seeds, flaxseeds)
- Plant milks (soy, almond, oat, coconut)
- Plant-based oils (olive, coconut, linseed)
- Nutritional yeast (source of B12 in some fortified versions)
✕ What you avoid
- All meat and poultry
- Fish and seafood
- Milk, cheese, butter, yoghurt
- Eggs
- Honey and other bee products
- Gelatin and other animal-derived additives
+ Sample one-day menu
+ Pros and cons
Pros
- Associated with lower body weight, cardiovascular disease and type 2 diabetes risk
- High in fibre and antioxidants
- Lower environmental footprint than any omnivore diet
- Ethically consistent with animal welfare values
Cons
- Mandatory supplementation: vitamin B12 (critical), vitamin D, omega-3 (algal oil), calcium, iron, zinc, iodine
- Requires careful meal planning for adequate protein
- Socially more challenging than omnivore eating
- Risk of nutritional deficiency without knowledge and discipline
+ ⚠️ Who should avoid this diet
- Pregnant women: possible with careful planning and supplementation — requires specialist supervision
- Children and infants: possible but very high-risk without dietitian supervision
- People with eating disorders: the strict exclusion rules may be triggering
- Not recommended without nutritional knowledge and commitment to supplementation
Indicative list. Before starting any diet, especially if you have a medical condition, consult a doctor or nutritionist.
Întrebări frecvente
Is it possible to get enough protein on a vegan diet?
Yes — with careful planning. Legumes, tofu, tempeh, seitan, edamame, quinoa and combinations of plant proteins can cover protein needs. Vegans are generally recommended to aim slightly higher than the standard RDA (about 1–1.2 g/kg body weight) to compensate for the lower digestibility of some plant proteins.
What supplements are mandatory for vegans?
Vitamin B12 is the only truly mandatory supplement — it cannot be obtained in sufficient quantities from plant foods. Vitamin D (especially in winter), omega-3 from algal oil, iodine (if not using iodised salt), and sometimes calcium, iron and zinc are also commonly supplemented depending on diet composition.
Does a vegan diet help you lose weight?
On average, vegans have lower body mass indices than omnivores. The main mechanisms: higher fibre intake reduces appetite and caloric density, and eliminating calorie-dense animal products (especially dairy and fatty meats) naturally reduces total caloric intake. However, a vegan diet rich in processed foods, pasta and sweets can still lead to weight gain.