live from hand to mouth
to live on little money and in poor circumstances
The man is an artist and must live from hand to mouth because he has no money.
Benefits of Mustard Seeds
Mustard seeds are a surprisingly good source of omega-3 fatty acids. These are considered essential for human health, particularly in the growth and development of healthy brain tissue. Omega-3 fatty acids have also been studied for their role in reducing the risk of heart disease, particularly when these unsaturated fats replace saturated fats in the diet.