Many fitness fans use protein diets to stay in shape.
The regimes, which incorporate foods such as eggs, dairy and meat, are said to burn fat and aid muscle development.
For this reason, it can be quite tricky for vegetarians and vegans to follow them.
So is there a way to get your protein fix on a plant based plan?
Daily Star Online spoke to Nutrition and Fitness instructor Cassandra Barns to find out more.
In the UK, adults are advised to eat 0.75g of protein for every kilogram they weigh.
On average, this works at as 55g for men and 45g of women.
Those who follow vegan or vegetarian lifestyles may struggle to do this, but meeting this quota isn’t impossible.
Leafy vegetables, including kale and spinach, are healthy sources of the nutrient.
Beans, pulses and nuts are also considered to be protein-rich foods.
Fitness expert Cassandra said: “For vegetarians (non-vegans), making sure you get two to three servings a day of eggs and high-quality dairy foods can be a good start.
“Also include around three or four servings a day of plant proteins in the form of beans or pulses, nuts or seeds.
“Vegetarians who work out regularly may need more than this.
“For vegans, protein intake comes from beans and pulses, nuts and seeds, as well as vegetables and whole grains.
“Including a broad variety of these plant proteins every day is vital.”
Here are five more vegetarian foods that are rich in protein:
1. Nuts – if you snack on a 100g bag of mixed nuts, you can expect to take in around 20g of protein
2. Porridge – oats are rich in protein, containing 16.9g per 100g
3. Greek yoghurt – the creamy products boast 10g of protein per 100 grams
4. Quinoa – the grain packs an impressive 14.1g of the nutrient in every 100g
5. Lentils – for every 100g you eat, you can expect to take in 9g of protein.
If you struggle to work these foods into your diet, there are other ways to up your protein intake.
Shakes and powders can give you a boost, although it’s best to check that the options you are drinking aren’t packed with too many sugars or additives.
Cassandra recommends: “For vegetarians and especially vegans, those who have a low appetite, struggle to digest protein foods, or are on a weight loss diet, then a plant based protein powder can be a great option.
“They are easy to digest and (in the case of those trying to lose weight) can be kept low-calorie.
“They can be used to make smoothies or shakes, and also added to savuory foods such as stews and soups.
“I’d recommend Natures Plus Sunflower Protein.”