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What Can You Actually Eat?: Differences Between The Plant-Based Diets Of Vegans, Vegetarians, Flexitarians, Pescatarians & More

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What Can You Actually Eat?: Differences Between The Plant-Based Diets Of Vegans, Vegetarians, Flexitarians, Pescatarians & More
Vegans, vegetarians, pescatarians and even flexitarians are words that’ve now become commonplace thanks to a general rise in awareness about plant-based diets and the impacts of meat consumption on our health and the environment.
But the question remains – what can these diet adherents eat?
After all, there are subtle nuances between each group and sub-group of people attempting to lead a vicarious, meat-light life (credited by American researcher Dan Buettner as one factor contributing to longevity hotspots around the world, which he calls Blue Zones).
For example, some sects of the new plant-based movement place high value on the provenance of their produce, preferring smaller farms that emphasise ethical practices.
Others, such as people who are vegetarians due to religion, have their own set of guidelines to follow apart from the obvious overarching rule of “no meat”.
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While these are usually easy enough for individuals to deal with at home, such specific dietary restrictions can prove harrowing for unwitting dinner party hosts – especially given how popular plant-based diets are becoming.
According to a YouGov survey last year, older Singaporeans were the most likely to be keen on reducing meat intake, with 55% of Baby Boomers agreeing that they were taking active steps to reduce their meat consumption, compared to 41% for Gen X-ers and 32% for millennials.
Read on for a cheat sheet of all the differences in dietary needs for vegans, vegetarians, pescatarians, flexitarians and more, all to answer the most important question – what can they actually eat?
Different reasons for going plant-based
What Can You Actually Eat?: Differences Between The Plant-Based Diets Of Vegans, Vegetarians, Flexitarians, Pescatarians & More - Reasons
All fruit-and-vegetable-forward dietary regimes fall under the broad umbrella of plant-based eating.
What individuals can or cannot eat differ based on their motivation for adopting a plant-based diet, whether that be for taste, health, environmental, ethical, religious or economic reasons.
Environmental vegetarians, for example, might prefer local produce due to its smaller carbon footprint, while ethical vegetarians would instead opt to shop at farms which don’t use heavy machinery that might injure or kill field critters.
We’ve broken down the differences between the most common plant-based diets below, ranked roughly in terms of restrictiveness.

Note: As some nutrients like protein, iron, zinc, calcium and vitamin B12 are harder to obtain as a vegetarian or vegan, do consult a dietician before making any major shifts as a senior.

The different plant-based diets, and what they can or can’t eat
What Can You Actually Eat?: Differences Between The Plant-Based Diets Of Vegans, Vegetarians, Flexitarians, Pescatarians & More - Flexitarian diet
The flexitarian diet is sometimes called casual vegetarianism, and for good reason. As its name suggests, it is the most flexible and easy plant-based diet to adhere to as it doesn’t come with any specific guidelines. Flexitarians are typically motivated by a combination of factors like sustainability, health and ethics, depending on the individual.
In general, flexitarians try to get most of their protein from plant-based sources rather than animals. They also try to eat minimally processed foods with no added sweeteners or sugars. There are no set calorie or macronutrient goals, so it is up to individuals to intuitively adjust their diets.

What flexitarians can eat:
Cooking for them is generally easy, as long as you focus on high-quality, whole foods. Even if you cook a hearty stew or curry fortified with meat, they can adjust their diet on other days to make up for it.

What flexitarians can’t eat:
Highly processed foods or large quantities of meat.

What Can You Actually Eat?: Differences Between The Plant-Based Diets Of Vegans, Vegetarians, Flexitarians, Pescatarians & More - Pescatarian diet
Apart from vegetables and fruits, people on the pescatarian diet eat fish and other seafood like molluscs and crustaceans, but no meat. This is because they believe that land animals reared for food have too large of an environmental impact on the planet.
Others do this for health, as fish is a nutrient-packed source of protein that’s rich in omega-3 fatty acids, but low in saturated fat.

What pescatarians can eat:
Seafood-heavy dishes laden with vegetables are generally safe.

What pescatarians can’t eat:
Aside from the obvious diet restriction of meat, pescatarians may or may not eat eggs and dairy, so it’s best to ask beforehand or err on the side of caution.

Also take note of products that may use land-based meat, like the gelatin in gummies, the base of broths, or lard and tallow used during cooking.

What Can You Actually Eat?: Differences Between The Plant-Based Diets Of Vegans, Vegetarians, Flexitarians, Pescatarians & More - Ovo vegetarian diet
Lacto-ovo (or ovo-lacto) vegetarians do not eat meat of any kind, though they still consume animal products like dairy and eggs.
In India, this is also known as eggetarianism. This variant of the vegetarian diet is the most common form of vegetarianism in the world, and is typically the version thought of when referencing vegetarianism.
This category can be further split into two subcategories, lacto-vegetarians (who consume dairy but no meat products; it is a common choice among Hindus) and ovo-vegetarians, who take eggs.

What lacto-ovo vegetarians eat:
Egg and dairy products are all kosher for lacto-ovo vegetarians, so go ahead and make them an omelette.

What lacto-ovo vegetarians can’t eat:
As with other vegetarians, they don’t consume meat products.

Allium-free vegetarianism is common in Singapore among some Buddhists and Hindus (who subscribe to the Vedic Dharma). This means that vegetables from the allium genus like garlic, onions, leeks and scallions are off the menu as they are believed to arouse passions that can distract from one’s religious life.

What allium-free vegetarians eat:
With common aromatics like garlic and onions struck off your shopping list, you’d have to get creative with how you flavour food when cooking for allium-free vegetarians. Ginger, red dates and other herbs can be used as a substitute.

There are also many Chinese vegetarian restaurants in Singapore catering for allium-free vegetarians.

What allium-free vegetarians can’t eat:
If using pre-bought sauces or curry pastes, do check the label to ensure that there aren’t any allium veggies hidden within.

What Can You Actually Eat?: Differences Between The Plant-Based Diets Of Vegans, Vegetarians, Flexitarians, Pescatarians & More - Vegan diet
Veganism is the strictest plant-based diet out there. Consuming any form of animal-based product or by-product is taboo for vegans. Products that have been tested on animals, or could unnecessarily harm animals, are a no-no as well.
These conditions make adhering to veganism challenging enough, but the difficulty is compounded when you realise just how many animal-related ingredients manage to sneak their way into both food and non-food products.

What vegans eat:
Strictly foods derived purely from fruits and vegetables. Vegan substitutes for many food items like cheese and honey are also available, though newfangled faux meat products are more debatable.

Most plant-based meats – including those from the popular Impossible and Beyond brands – are vegan, others have been known to contain eggs or dairy too.

What vegans can’t eat:
You’d be surprised how many items contain animal-related additives once you start looking for them.

These include: Beeswax, commonly used in lotions and balms; casein, derived from milk and used in supposedly non-dairy creamers; insect-derived carmine, used to dye food red; and egg white or isinglass (derived from fish bladders) to clarify beer and wine.

If you’re buying something for a vegan, it’d be best to look for a label identifying a food as vegan-friendly or stick to whole foods.

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