1. Loss of muscle mass
A loss of muscle mass is often one of the first signs of inadequate protein intake. This is because, when the body is running low on dietary protein, it tends to take the needed protein from our muscles. Over time, this leads to muscle wasting. It is essential to get the protein you need to build healthy muscle.2. Thinning hair, brittle nails, skin problems
Since protein is an essential part of your skin, hair and nails, their health can be a good indicator of a lack. You may see redness on the skin, nails can feel softer and your hair can become more brittle over time. Hair can lose some of its luster, and may not be quite as thick as it used to be. It may also start to split. Biotin, which is found in protein-rich foods, is essential for naturally healthy hair, skin, and nails.3. Bigger appetite and increased calorie intake
When you aren’t getting an adequate amount of protein, your body tends to respond by actually feeling hungrier. And in general, the increase in hunger tends to revolve around sugar cravings. Sufficient protein intake may keep you satisfied for a longer period, thereby preventing cravings and hunger pangs.4. Fragile bones
Protein helps maintain the strength and density of bones. Not consuming enough protein content might weaken your bones and increase the risk of fractures