Many Women Have One of These Nutrient Deficiencies

9. Protein

Proteins are integral to every body function. A normal Western diet generally provides enough protein, but many processed foods lack certain essential amino acids. Low levels of protein can stem from excluding animal protein food sources, trouble absorbing protein, excessive alcohol consumption, and some medications.

The most common signs of protein inadequacy include increased hunger, fatigue, weakness, and brittle hair and nails. People with low protein may have poor concentration, mood swings, recurring infections, and trouble losing weight.