"My biggest irritation is that any time someone points out that people lose weight on starvation, and that by starving yourself , you will lose weight eventually, they are treated like they are attacking, not making a point. "
Yes, people will eventually lose weight. (You and I have both- to some degree- have experienced this)
But is it ethically correct to tell someone that they will eventually lose weight without telling them about the psychological effects that might occur?
COACH Dean wrote about starvation mode here: www.sparkpeople.com/myspark/messageboard.a
He wrote that people do lose weight:
"But this drop in metabolic rate is not enough to stop weight loss or fat loss completely (otherwise it would be impossible for people to starve)."
and he also wrote about the negative effects:
“ You probably will not get the right combination of vitamins, minerals, other micronutrients, fiber, and macronutrients (carbs, fats, protein) you need to maintain good health and adequate energy levels for your daily activity.
“ You may begin to suffer significant psychological and physical problems, including obsession with food and eating, agitation, stress-related hormonal imbalances, sleep and mood disturbances, difficulties with concentration and attention, and fatigue.
“ You may compromise the functioning of your immune system, making it more likely that you’ll catch colds and flus, be more susceptible to long-term problems associated with inflammatory processes (like atherosclerosis), and experience other avoidable health problems."
I think the psychological and physical effects should be mentioned when someone is stating that they are engaging in unhealthy behaviors. The person might have no idea about the negative effects and things like hair loss or lost periods happen months after you start engaging in these extreme diets.