Two British health organizations have reported that the way food is produced in the modern age has altered the balance of key nutrients people consume, and consequently affected mental health.
Less Fresh Food
A smaller amount of fresh food, and more saturated fats and sugars, may be leading to depression and memory problems. Addressing mental health problems with dietary changes can show better results in some cases than either drugs or counseling.
Omega-3's
People are eating 34 percent fewer vegetables and two-thirds less fish than they did 50 years ago. Fish are one of the few sources of omega-3 fatty acids, which are crucial to brain health, in the human diet.
These changes may be linked to depression, schizophrenia, attention deficit hyperactivity disorder (ADHD) and Alzheimer's disease.