unwholesome

detrimental to physical or moral well-being; "unwholesome food"; "unwholesome habits like smoking"

• insalubrious, unhealthful, unhealthy — detrimental to health
• insubstantial, jejune — lacking in nutritive value
• morbid — suggesting an unhealthy mental state
• nauseating, nauseous, noisome, loathsome, offensive, sickening, vile — causing or able to cause nausea