I don’t know who you where referring to by Dr. Feelgood but the snake oil salesman is the medical doctors giving drugs that cure nothing only manage diseases and not veterinarians.
There is a need to be knowledgeable and know what is in the soil and food. The interaction of minerals is good to know. For example selenium binds with mercury and then can be expelled so if you have mercury in your body it means the selenium level is low.
If you are a luck person who lives where there is lots of selenium in the soil you would not need to supplement.
Knowledge is a trick thing depending what you look for you can find things that agree with you.
If you do a search for selenium toxicity than you can find information to verify what you want to find and if you do a search for deficiency you will find something directly opposite
When you look at what is happening for example
Death rate extrapolations for USA for Cardiomyopathy: 27,260 per year, 2,271 per month, 524 per week, 74 per day, 3 per hour, 0 per minute, 0 per second.
Note: this automatic extrapolation calculation uses the deaths statistic: 27,260 deaths (NHLBI 1999)
A simple selenium deficiency
National MS Society estimates that about 400,000 people have the disease.
A selenium deficiency disease
Proven by Dr. Wallach
More than 50,000
people are affected by the nine major forms of
Muscular Dystrophy
A selenium deficiency in the mother before birth
Proven by Dr. Wallach
Here is more information of selenium deficiency
http://www.naturalreliefs.com/minerals/seleniumdeficiency.htm
