The only BB drug I for the life of me can't understand why guys use. Hell I even "get" the guys who synthol and touch up their weak parts the night before a show. But this....fuck DNP
It literally only kills idiots.
The side effects can be brutal, but the health consequences of DNP use are fairly negligible (assuming you don't die from it). It may cause cataract formation, but this is likely due to excessive free radical production causing deterioration of the mechanism that allows the fibres that form the lens tissue of the eye to remain in a persistent state of dehydration (dehydration allows the lens to remain transparent, which as far as I'm aware is the only tissue in the body that *only* functions when it is dehydrated).
In animal studies antioxidant therapy prevented cataract formation from DNP usage (high dose vitamin C).
Apart from death, cataract formation is the only significant long term side effect of DNP usage. Compare it to something like clenbuterol which actively accelerates collagen deposition in the cardiac musculature (essentially accelerating the process that leads to heart failure) *AND* is actively arrhythmiogenic through stimulation of the beta adnergic pathway and through collagen deposition in the heart wall leading to interference with the electrical conduction of the heart.
I personally don't believe in fat burning compounds at all. But clenbuterol use is widespread and yet people seem more keen to condemn DNP usage, imo, the reverse should apply (but not everyone is capable of using it safely). I even heard of a medical student who managed to kill herself by combining it with other drugs (or possibly just a primary DNP overdose), so not just lay people are stupid it seems.