Plausible, but not all indoor workers get filtered sunlight (I am in the middle of the office).
Maybe it is just the lack of real sunlight that is the problem? or the artificial lighting, or too much coffee, or...
You can always get a curtain, stick-on UV film or swap with another worker if you are worried.
The "Seven Deadly Sins"
• Grains (wheat/rice/oats etc) . . . . . • Dairy (milk/yogurt/butter/cheese etc) . . . . .• Nightshades (peppers/tomato/eggplant etc)
• Tubers (potato/arrowroot etc) . . . • Modernly palatable (cashews/olives etc) . . . • Refined foods (salt/sugars etc )
• Legumes (soy/beans/peas etc)