Gordon Ramsay won&#8217;t be adding fermented shark to his list of favorite foods anytime soon.
In PEOPLE&#8217;s exclusive clip of Sunday&#8217;s episode of Ramsay&#8217;s National Geographic series Uncharted, the celebrity chef, 54, tries the unique dish for the first time, and quickly learns that it&#8217;s not for him.
&#8220;I&#8217;m in Northwest Iceland sampling a pungent slice of fermented shark that I&#8217;m not convinced is meant to be eaten,&#8221; he says in a voice over before trying to psych himself up to taste the local delicacy.
&#8220;Come on, come on,&#8221; he tells himself before taking the plunge — and then immediately spitting it out.
Before being able to describe the bodily sensation that accompanied eating fermented shark, Ramsay takes a moment on the ground to gather himself. &#8220;My nose got all fizzy,&#8221; he eventually says of the experience.
When asked if he wanted to try again with a smaller piece, Ramsay politely declines, saying, &#8220;No, no don&#8217;t.&#8221;
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&#8220;But that&#8217;s not about you, that&#8217;s just my taste,&#8221; he adds.
<img decoding="async" src="https://people.com/thmb/YL6q7fzGzdBmZ9EBWl37rRY-JWM=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc():focal(674x469:676x471)/gordon-ramsay-3-10385402cde14ad4b3989c27e91f051a.jpg" /> Gordon Ramsay. Justin Mandel/National Geographic <img decoding="async" src="https://people.com/thmb/5GV87rFMgBveUSOn60cigGASfgw=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc():focal(719x509:721x511)/gordon-ramsay-1-231596af05ec4b8f8dc58489fb0db409.jpg" /> Gordon Ramsay. Justin Mandel/National Geographic <img decoding="async" src="https://people.com/thmb/oY1NSA8sONc0mSKHa4B5iidOiII=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc():focal(599x764:601x766)/gordon-ramsay-2-fcd2f5f927ea4c65ba3b2ed85f2cab24.jpg" /> Gordon Ramsay. Justin Mandel/National Geographic
For the Uncharted series, Ramsay travels around the globe to experience local cultures and cuisines — and then puts his newfound skills to the test by cooking a feast to represent each location.
Never miss a story — sign up for PEOPLE&#8217;s free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.Ramsay previously said that it was an &#8220;extraordinary expedition&#8221; to work on the show, which has taken him to many destinations, including South Africa, Laos and New Zealand. The series is now in its third season.
Uncharted airs Sunday at 9 p.m. ET on National Geographic.