It is important to remember that you can't simply exclude meat and fish from your usual recipes, because this will deprive you of protein and other nutrients that are essential to your health and wellbeing. But plant based diet is becoming more popular thanks to wider arability of products and meat substitutes, made from extracted plant protein or whey protein, spices and binding ingredients. In any curry meat can be replaced by tofu, paneer, edamame beans, quinoa.
People who don't eat meat — vegetarians — generally eat fewer calories and less fat, weigh less, and have a lower risk of heart disease than non-vegetarians do. Even reducing meat intake has a protective effect.
A recent study published in Neurology add the evidence that a plant-based diet can reduce the odds of a stroke and preserve overall brain health, guarding against cognitive impairment and dementia. The studies nowadys focus on quality of those diet as not all plant-based diet have the same benefits. The vegetarian pasta will not have the same qulities like paneer or tofu dish. A healthy diet can also help lower blood pressure and cholesterol.
For those who do not want to give up meat, replacing for example some ground meat while making a burger with finelly dieced or musched mushroom, egplant or beans. It is worth to consider meat substitures such as the Impossible Burgers, wich are made with soy and potato protein instead of beef. They taste surprisingly similar to meat.