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Question
Sorry this might not be part of your expertise but can you tell me as much as you know about:

-How our bodies react when we like or dislike food by its smell

-How our bodies react when we like or dislike food by how it looks

Please put it in scientific terms!

Please don't ask me anything about the question, please just give me the answer or as much as you know"

Answer
Hi Neon,
Yes, you are correct; this is not part of my expertise. However, since you are asking for a personal opinion, I will give you a general answer from my readings.
It may not be as scientific as you like, but it's my opinion that our bodies require certain vitamins, minerals, nourishment, and certain trace amounts of several elements like selenium,
potassium, zinc, copper, magnesium, etc etc.
And I think our bodies know this subconsciously without our thinking, and depending on your bodies' needs, it will MAKE your food "desireable" by ANY means, even if normally you would consider the food non-palatable under regular circumstances.  Because it wants (and needs) those trace elements to survive.  I remember reading that people out on a raft for days lost in the ocean, would catch fish and eat not just the meat, but the brains, heads, and eyes too... parts that you would normally discard... but due to their bodies need for trace elements, the undesireable fish parts temporarily became... delicious to them. (To get those trace elements in their body).
So, in conclusion, I think our bodies "desire" for certain foods, be it by looks or smell... is pretty much on "automatic" IF we just let it work that way. I work that way... I let my body tell me what I want to eat... and my weight hasn't changed + or - 10 pounds in the last 40 years, nor have I been sick during that time frame.
For what its worth,
Tom Whiting
Erie, PA USA  

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Tom Whiting

Expertise

I can answer most questions involving general science and engineering, except those involving electronics and computers.  My strong points are all the Earth Sciences, especially Meteorology and Astronomy, and any related subjects to Astronomy.  My weak point is Electronics Technology.   No astrology questions please, or questions about alleged UFO identifications.

Experience

My hobby has been Astronomy for over 50 years. I currently ownand use a 30 inch portable telescope.   I taught at the University Level for 13 years.  My personal interest in life, in general,  has always been science oriented.

Organizations
President - Erie County Mobile Observers Group for over 15 years.Member of allexperts.com astronomy catagory for over 8 years.

Publications
Astronomy Technology TodayErie Times Newspaper - I wrote the "Over Erie Skies" columnfor 11 years.

Education/Credentials
BS  Metallurgical Engineering Grove City College, PAMaster's Degree, Gannon University, Erie, PAAlso retired USAF pilot, 20 years.

Awards and Honors
I was the discoverer of the Mini-Coathanger Asterism up in Ursa Minor.  I earned 6 Air Medals with USAF and retired after 20 years of service with the rank of Major, with over 2100 hours flying time.I also earned the rank of Eagle Scout in 1956.

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