Candy

Candy may taste good, but it is poison. The reason is because candy is sugar and sugar triggers an insulin spike, which packs fat into the body,—but more importantly, insulin drives fat into the interior of artery walls. This recent finding is the most frightening news about insulin and, by inference, about sugar. What it means is that insulin is the chief cause of heart attack and stroke. Insulin (and by extrapolation, sugar) is the number one cause of death in the world.

References

1. 1999. Early impairment of large artery structure and function in Type I diabetes mellitus. Diabetologia. Volume 42, Number 8 / July. (Type I diabetes associated with greater incidence of clogged arteries.)
2. J. Qiao. Cartilaginous metaplasia in calcified diabetic peripheral vascular disease: Morphologic evidence of enchondral ossification. Human Pathology, Volume 34, Issue 4, Pages 402-407. (Type 2 diabetics suffer from increased "cartilaginous metaplasia and ectopic ossification with associated severe medial arterial calcification and atherosclerosis.")
3. G Marquie. 1978. Effect of insulin in the induction and regression of experimental cholesterol atherosclerosis in the rabbit. Postgraduate Medical Journal, Vol 54, 80-85. (Insulin causes fat to adhere to artery walls, leading to atherosclerosis.)