Britain have brought in an extra chef as a result and complained about a shortage of the right food at the village, and the quality of what's on offer, English media reported.
Andy Anson, the British Olympic Association chief executive, told the Times that the fare at the village in the French capital "is not adequate" and that "a dramatic improvement" was needed.
Some British competitors have headed off to Team GB's base elsewhere in the city to get fed and pick up packed meals to take back for dinner.
"There are not enough of certain foods: eggs, chicken, certain carbohydrates," Anson said of the apparently disappointing offering at the village where many athletes stay.
"And then there is the quality of the food, with raw meat being served to athletes."
Anson called the food problem "the biggest issue at the moment" and said the added chef was to cater for the extra demand at their so-called performance lodge.
A Team GB spokesman told AFP on Friday, hours before the opening ceremony, that things were looking up.
"I think the latest update is that we understand the situation is improving and being attended to by Paris 2024," he said.
French sports newspaper L'Equipe on Wednesday quoted a firm responsible for catering as saying that it was aware of issues, including a shortage of eggs, and was working to increase supplies.
