This book attacks the deficiency myth about what vegetarians really lack (and don’t)

“Hey ghaas-phoos, where will you get your protein from?”

You have probably heard it before, whether being said in passing or in mockery. You’ve even heard that vegetarians have all kinds of deficiencies.

It is the nutritional version of a concerned aunt or a dismissive uncle, casting doubt on your plate the moment it excludes meat. In wellness circles, vegetarianism is either glorified as a moral high ground or dismissed as a deficient diet, with very little space left for science or common sense.

Let us get this straight: vegetarians are not doomed to be iron-deficient, protein-starved, or perpetually weak. However, there are a few nutritional blind spots worth understanding – not because the diet is “flawed”, but because most diets, meat-inclusive or not, can lead to deficiencies when planned poorly.

What you might be missing on a vegetarian diet

Vegetarian diets, especially in countries like India, can often be high in carbohydrates, consisting mainly of roti, rice, and dal, while lacking foods that provide essential micronutrients. These nutrient deficiencies typically result not from the absence of meat but from a lack of diversity and nutrient-dense foods. Let us examine the most common areas of concern:

Vitamin B12: This is the big one. Vitamin B12 is found almost exclusively in animal products. A deficiency can lead to fatigue, nerve damage, and even cognitive problems. Even well-meaning vegetarians who ‘eat healthy’ often miss this because B12 has no reliable plant source. Some fortified foods, like nutritional yeast or plant milks, can help, but the safest route is a supplement.

Solution: Every vegetarian should have their B12 levels checked annually and take supplements accordingly. A simple methylcobalamin capsule or injection can prevent long-term damage.

Iron: Plant-based iron (non-heme) is not absorbed as efficiently as iron from animal sources. When combined with diets high in phytic acid (found in grains and legumes) or tea and coffee, which block iron absorption, the risk increases – especially for menstruating women.

Solution: Combine iron-rich plant foods like lentils, tofu, and spinach with vitamin C (like lemon juice or bell peppers) to enhance absorption. Also, avoid drinking tea or coffee immediately after meals, as they hinder iron uptake. Regular blood tests help detect low ferritin levels early.

Omega-3 fatty acids (EPA and DHA):

These heart- and brain-loving fats are primarily found in fatty fish. While some ALA (the plant-based omega-3 from sources like flax and chia) can convert to EPA and DHA (the active forms that support brain, heart, and eye health), the conversion rate is quite low.

Solution: Consider taking an algae-based omega-3 supplement, especially if you are pregnant, breastfeeding, or experiencing brain fog or dry skin.

Zinc: Zinc plays a crucial role in supporting immunity and aiding wound healing. However, its absorption can be lower on a vegetarian diet due to phytates found in plant foods.

Solution: To enhance zinc absorption, consider soaking, sprouting, or fermenting your grains and legumes to reduce phytate levels. Additionally, nuts, seeds, and dairy products are good vegetarian sources of zinc.

Protein: While vegetarian diets can absolutely meet protein needs, many people underestimate their intake or rely on low-protein staples. This is especially a concern for older adults or anyone pursuing strength goals.

Solution: To address this, be mindful of including high-quality vegetarian proteins like dairy, soy, lentils, beans, tofu, tempeh, nuts, seeds, and protein-enriched foods. Ensure that every meal contains a quality protein source.

Vitamin D: This is not just a vegetarian issue per se, but a modern living concern. Most people, regardless of whether they are vegetarian or not, are deficient in vitamin D because we are often not exposed to enough sunlight. Additionally, vegetarian or vegan diets frequently lack fortified dairy products or eggs.

Solution: Get your vitamin D levels tested and take a supplement if needed. Vitamin D3 derived from lichen is a suitable plant-based option for strict vegetarians.

Is a vegetarian diet not healthier?

Plenty of evidence links vegetarian diets with a lower risk of heart disease, hypertension, type 2 diabetes, and even certain cancers. But that is when the diet is built thoughtfully, not when it is an endless cycle of white rice, potatoes, and ultra-processed snacks.

A vegetarian diet rich in whole foods such as vegetables, fruits, legumes, whole grains, nuts, seeds, and dairy can be nourishing. However, when it is based on convenience foods or rooted in religious tradition without nutritional updates, the flaws become apparent.

Modern vegetarian diets, especially in India, suffer not from a lack of meat but from a lack of attention. When “pure veg” becomes a moral identity rather than a nutrient-aware choice, deficiencies occur.

A note for vegans

If you are avoiding both dairy and eggs, you will need to be more strategic. Calcium, vitamin B12, and iodine can become low in your diet. Fortified plant milks, sesame seeds, ragi, and tofu can help provide calcium. B12 must be supplemented, as there are no reliable plant sources. Additionally, without egg yolks or dairy, your iodine intake may also become low unless you use iodised salt or seaweed in moderation. A vegan D3 supplement and an algae-based omega-3 might be worth considering, especially if you are often indoors or live in an area with low sunlight.

Putting it into practice

• Test, do not guess: Have your levels of B12, iron (ferritin), vitamin D, and homocysteine checked annually.

• Prioritise protein: Ensure every major meal includes a solid protein source – like paneer, dal, soy, or yoghurt.

• Supplement smartly: B12 and D3 are almost non-negotiable in modern vegetarian diets. Algae-based omega-3s and occasional zinc might be worth discussing with your doctor.

• Think variety: Rotate your grains, pulses, and vegetables to introduce more diversity to meals. Fermentation and sprouting can increase nutrient availability.

You’ve got this

The idea that vegetarians are destined for deficiencies is as outdated as the belief that cutting out meat guarantees better health. As with most things in nutrition, the truth lies somewhere in between. Instead of defending your food choices, focus on building meals that align your diet with your health goals – intentionally and intelligently.

Excerpted with permission from No Gods, No Gurus: A Radical Guide to Your Wellbeing, Nandita Iyer, Bloomsbury India.