Malnourishment is a state wherein the body is undernourished and lacks the ability to perform its daily functions efficiently. There are several early signs of malnourishment which, if taken into consideration, can help in keeping malnutrition at bay.

Brittle hair: The health of a person can be easily determined by the condition of their hair and scalp. The hair of a healthy person is shiny and soft, whereas that of an undernourished person is dull and hoarse. They are likely to fall out or break during combing and rinsing.
Scaly skin: The first visible aspect of a person is their skin. The skin of a malnourished person is dull, dry and scaly. This situation doesn’t improve even on trying external applications. In adverse conditions, the skin tends to crack and bleed. If unnoticed, these cracks can invite germs, thereby resulting in infections.
Weight-loss: Significant weight-loss is visible in a short period of time without the influence of a fitness plan. The malnourished person may also experience chronic fatigue and dizziness. Also, a small task consumes more energy for completion. However, in some situations, weight gain is possible if a malnourished person continuously indulges in junk food.
Oral health: The gums of an undernourished person bleed and are often swollen. One may also experience cracking and inflammation at the corners of the mouth. However, this situation is temporary and can be avoided with regular intake of essential supplements. If malnutrition is left untreated, the situation can become adverse and can eventually result in tooth decay. This situation is permanent and cannot be reversed.
Fragile bones: The bones of a malnourished person are fragile and brittle. Constant weakness and pain is experienced in the joints and arms during movement. Lack of calcium and vitamin D triggers osteoporosis and other bone diseases.
Mental disorder: A malnourished person suffers both physically and mentally. Adequate nutrition is necessary for the brain and body to function effectively. A diet that lacks vitamin B can lead to memory loss, confusion and irritation. Overtime, it may also lead to dementia and permanent brain damage.
Losing interest: The weakness, fatigue and lack of concentration affects people, making them lose their interest in activities they formerly enjoyed doing. They even lose interest towards food which tremendously affects their appetite.