Welche Bedeutung steckt hinter der hier vorgestellten Vokabel aus dem Bereich Talking with colleagues?

Hilary: 'You really ought to stop eating so many sweets, you know. It's detrimental to your health. Ivan: 'I'll give up sweets if you give up drinking cola. Is it a deal?'

detrimental

Do you know what it means?

• harmful
• beneficial
• not important