Serena Williams tried her 3-year-old dog’s hotel dog food and got one whopper of a stomach ache afterward, according to a Snapchat video.

“That looks better than my food,” reasoned Williams in a video, now available on YouTube, in which she explains why she decided to have a bite of her dog’s gourmet meal. “I’m like, what the heck, I’m gonna try a piece. It looks good.”

Williams, who uploaded the video to Snapchat to avoid “hating,” knew exactly what people might think about her taste test: “Don’t judge me, I ate a spoonful.”

Turns out, this was definitely no delicious spoonful. Two hours later, she said, “I just ran to the toilet like, like I thought I was going to pass out.”

The “force-swallowed” bite tasted “a little bit like house cleaner,” she said, adding with a laugh, “Chip liked it and it looked good … I don’t think it’s consumable for humans.”

The star sighed at the end of the video, and said, “So now I feel really sick.”

Williams managed to qualify for the Italian Open hours later (and won yesterday.