I suspect that what you experiencing is what is termed carb flu, a condition that comes from your body being forced to get energy from fat rather than from sugar, which it had gotten used to as the preferred fuel. In the transition time your body and brain are a little low on energy which in some cases can lead to feeling depressed, but the discomfort usually only lasts for a few days. Sometimes it helps to increase your water intake and also increase your salt intake.
If your depression is severe talk to a health care provider as there may be other causes.
To answer your question directly: losing weight will not cause depression, but losing weight and feeling depressed can both occur at the same time as a result of lowering carbs significantly, in other words correlation, not causation.
Hope this helps and glad you asked the question.
Edited by: HOUNDLOVER1 at: 9/17/2013 (20:31)
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