in some cultures people choose not to eat any tupe of animal products how might these people get the protein they need

Read, read, read for lots of ideas.

Best Vegan and Vegetarian Protein Sources - Health.com
http://www.health.com/health/gallery/0,,20718479,00.html
Meat- and dairy-free protein sources that can help you stay slim and healthy. Get more of these protein-rich foods in your diet.
‎Best Vegan and Vegetarian ... - ‎Fresh Pea Hummus - ‎Toasted Quinoa With Chiles ...

10 Meatless High-Protein Foods - Cooking Light
http://www.cookinglight.com/food/vegetarian/protein-for-vegetarians
These 10 meatless foods are high in protein and will help to keep your body strong and healthy, sans ... Food » Vegetarian » 10 Meatless High-Protein Foods ...

8 Ways to Get Protein Without Eating Meat - Good Food Life
http://www.fullcircle.com/goodfoodlife/2012/05/23/8-ways-to-get-protein-without-eating-meat/
Full Circle Farm
May 23, 2012 - Yet many critics claim a diet without meat is less nutritionally-sound than one that includes it, primarily due to a dearth of protein. Protein is ...

why

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People who choose not to consume animal products can still obtain the protein they need by incorporating various plant-based protein sources into their diet. Here are some ways they can do so:

1. Legumes: Beans, lentils, chickpeas, and other legumes are excellent sources of protein. They can be cooked and used in salads, soups, stews, or even made into veggie burgers or dips like hummus.

2. Tofu and Tempeh: These soy-based products are popular meat alternatives and are rich in protein. Tofu can be used in stir-fries, curries, or grilled, while tempeh can be marinated and added to sandwiches or sautéed with vegetables.

3. Quinoa: Quinoa is a complete protein, meaning it contains all the essential amino acids our bodies need. It can be enjoyed as a side dish, added to salads, or used as a base for grain bowls.

4. Nuts and Seeds: Almonds, peanuts, walnuts, chia seeds, hemp seeds, and flaxseeds are examples of plant-based protein sources. They can be eaten as snacks, added to smoothies, or sprinkled over dishes for added protein and healthful fats.

5. Plant-based Milk and Yogurt: Some fortified plant-based milk, such as soy or almond milk, can provide protein. Similarly, dairy-free yogurt made from soy or almond milk may also contain protein.

6. Seitan: Seitan is a wheat gluten product with a meaty texture and high protein content. It can be used in recipes that call for meat, such as stir-fries, stews, or sandwiches.

7. Spirulina and Chlorella: These blue-green algae are highly nutritious and rich in protein. They can be consumed in powdered form, added to smoothies, or used as a natural supplement.

8. Edamame: These young soybeans can be steamed or boiled and eaten as a snack or added to salads, stir-fries, or rice dishes.

To ensure adequate protein intake, people following a plant-based diet should aim for a diverse and balanced selection of these plant-based protein sources throughout the day. Consulting a registered dietitian can also provide personalized guidance on meeting protein needs.