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Want to eat less meat and dairy? Here are other protein options

Cereal grains such as wheat are a rich source of protein.

Cereal grains such as wheat are a rich source of protein. Photo: Getty

As more people become aware of the environmental impact of what we eat and drink, there is renewed interest in many Western countries in vegetarian, vegan and flexitarian diets, which come with lower carbon footprints.

But meat and dairy are still the main source of protein for most adults in Western countries.

Protein is needed to grow and repair the body. So if you start eating less animal produce, you need to ensure you are still getting enough protein.

Many people might think eating less meat just means eating more plant-based meat alternatives like veggie burgers.

But while these kinds of alternative protein products are better for the environment because they use less land and produce lower greenhouse gas emissions, there are drawbacks.

Some plant-based meat alternatives can be classified as “ultra- processed” and they often have a less favourable nutrition profile, higher in salt and lower in iron and vitamin B12 (although they can be lower in calories and fat too).

Their taste and texture are also often criticised by consumers.

But plant-based meat alternatives are far from the only other type of protein available.

There are five other broad categories: Pulses, algae, insects, cultured meat, and grains such as oat, wheat, barley and other cereals which are often overlooked as environmentally sustainable plant proteins.

Here’s what you need to know about consuming more of these alternative protein sources.

Pulses

Pulses, such as beans and chickpeas, are the edible seeds of legume plants.

Compared to other crops, legumes don’t need as much fertiliser, so they result in fewer greenhouse gas emissions.

Legumes improve soil health and microbial diversity on farmland, and varieties can be selected to be more climate-resistant.

Their protein content ranges from 17 to 30 per cent, and pulses are rich in fibre, vitamins and minerals.

Eating pulses also helps prevent chronic diseases like heart disease and diabetes.

Algae

Algae, such as seaweed and spirulina, are another option.

Like pulses, algae are high in vitamins and minerals with 50 to 60 per cent protein content.

Algae can store or sequester carbon from the atmosphere. Algae have antioxidant and anti-inflammatory properties.

For those who aren’t keen on munching seaweed, using algae as an ingredient in foods such as bread might be more appealing, boosting protein content in the process – although it might colour your food green or leave a fishy aftertaste.

Cereal grains

Cereal grains, such as oats and wheat, are often considered carbohydrates.

But they are also a notable plant protein source with 7 to 18 per cent protein content, and some can lower cholesterol and may improve gut health.

Currently, many cereal grains are used inefficiently. In Ireland, a very high proportion (89 per cent) of cereal is used as animal feed, with animals then used as the protein source.

Consuming cereal grains directly instead of using as feed would cut greenhouse gas emissions.

protein diet food

Protein-rich crickets are used to make cooking ingredients such as flour and snack bars. Photo: Getty

Insects and cultured meat

For more adventurous diners, there are options such as insects and cultured meat.

Although not prominent in the Western world, insect snack bars and other cooking ingredients are available.

The UK recently became the first European nation to approve the use of cultured meat, albeit in pet food.

Particular benefits include the high protein content of insects – cricket flour is 45 to 70 per cent protein – and the meaty taste and texture of cultured meat.

But these aren’t as socially acceptable as other alternative proteins, due to reasons such as disgust and familiarity. Potential allergy and ethical issues are another concern.The Conversation

Tony Benson, Research Fellow, School of Biological Sciences, Queen’s University Belfast; Anne Nugent, Reader, Nutrition, School of Biological Sciences, Queen’s University Belfast, and Moira Dean, Professor in Consumer Psychology and Food Security, Queen’s University Belfast

This article is republished from The Conversation under a Creative Commons licence. Read the original article.

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