It is scientifically backed that you don’t need to eat meat.

New research published in the American Journal of Clinical Nutrition shows that both plant-based protein and meat build muscle equally well however because plant-protein comes with less 'baggage' in the form of harmful components it's the more beneficial protein source to use.

A study published last week in the American Journal of Clinical Nutrition found that dietary protein derived from plant sources built muscle just as well as protein from meat sources. However meat also comes with additional components that are harmful to our health, including antibiotic residue, hormones, saturated fat, trans-fats, endotoxins, cholesterol, Neu5Gc, heterocyclic amines and contaminants such as high levels of metals including copper and arsenic. These undesirable elements increase inflammation and promote various diseases thus making meat a less desirable option when building muscle and long term health are considered.

https://www.riseofthevegan.com/blog/plant-protein-best-for-building-muscle

Anyone can follow a vegan diet – from children to teens to older adults. It’s even healthy for pregnant or nursing mothers. A well-planned vegan diet is high in fibre, vitamins and antioxidants. Plus, it’s low in saturated fat and cholesterol. This healthy combination helps protect against chronic diseases. Vegans have lower rates of heart disease, diabetes and certain types of cancer than non-vegans. Vegans also have lower blood pressure levels than both meat-eaters and vegetarians and are less likely to be overweight.

https://www.unlockfood.ca/en/Articles/Vegetarian-and-Vegan-Diets/What-You-Need-to-Know-About-Following-a-Vegan-Eati.aspx

"There's certainly some research on the benefits of the vegetarian diet," says Kathy McManus, director of the Department of Nutrition at Harvard-affiliated Brigham and Women's Hospital. She ticks off the various advantages associated with this way of eating—lower body mass index and blood pressure; reduced risks for heart disease, diabetes, and cancer; and longer life.

https://www.health.harvard.edu/staying-healthy/is-a-vegetarian-or-vegan-diet-for-you

The objective of this article is to present to physicians an update on plant-based diets. Concerns about the rising cost of health care are being voiced nationwide, even as unhealthy lifestyles are contributing to the spread of obesity, diabetes, and cardiovascular disease. For these reasons, physicians looking for cost-effective interventions to improve health outcomes are becoming more involved in helping their patients adopt healthier lifestyles. Healthy eating may be best achieved with a plant-based diet, which we define as a regimen that encourages whole, plant-based foods and discourages meats, dairy products, and eggs as well as all refined and processed foods. We present a case study as an example of the potential health benefits of such a diet. Research shows that plant-based diets are cost-effective, low-risk interventions that may lower body mass index, blood pressure, HbA1C, and cholesterol levels. They may also reduce the number of medications needed to treat chronic diseases and lower ischemic heart disease mortality rates. Physicians should consider recommending a plant-based diet to all their patients, especially those with high blood pressure, diabetes, cardiovascular disease, or obesity.

https://www.thepermanentejournal.org/doi/10.7812/TPP/12-085