“Dead Doctors Don’t Lie.” That’s the title of the lecture Dr. Joel Wallach, veterinarian pathologist, naturopathic physician and national radio talk show host, is bringing to Logan Wednesday evening. Wallach will be at the Crystal Inn, 863 South Main Street, at 7 p.m. and the lecture is free and open to the public. Dr. Wallach claims many diseases are doctor-caused, not doctor-cured and says doctors die at an age 20 years younger than the average American.On KVNU’s Crosstalk show Tuesday, Wallach used obesity as an example, saying most doctors believe it is caused by eating to excess.”Mineral deficiencies are basically the root cause of being overweight,” Wallach says. “We have over 11 different plans in our company for weight loss and they’re always effective. I like people to use two or three of them. They have different methods of action, different modes of action. “But the important thing, to lose weight and sustain the weight loss anybody achieves instead of doing that yo-yo thing, you have to supplement with all the known essential minerals. Within 10 to 14 days the cravings and the munchies and the binge eating and the pica just go away.”Wallach says many diseases are caused by mineral and vitamin deficiencies and that’s why humans still suffer from diseases that were eliminated in the animal industry.