The Serie A side completed the signing of the Belgium international for £74m last month.
The striker was criticised for being too bulky at Manchester United (opens in new tab) but he has already slimmed down at San Siro.
Conte has told Lukaku to follow the 'Bresaola diet', which places an emphasis on white meat and vegetables.
And the new nutrition plan has already served the former Chelsea (opens in new tab) man well, with Lukaku having already shed over 3kg.
The centre-forward scored on his Serie A debut as Inter thrased Lecce 4-0 last weekend.
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Greg Lea is a freelance football journalist who's filled in wherever FourFourTwo needs him since 2014. He became a Crystal Palace fan after watching a 1-0 loss to Port Vale in 1998, and once got on the scoresheet in a primary school game against Wilfried Zaha's Whitehorse Manor (an own goal in an 8-0 defeat).
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