President Donald Trump believes diet fizzy drinks destroy cancer cells within the body, according to Mehmet Oz, the Administrator for the Centers for Medicare and Medicaid Services. According to Daily Express - US News, Mehmet Oz described Trump's argument that diet soda is beneficial because it kills grass and therefore must kill cancer cells inside the body. However, there is no scientific evidence whatsoever to support President Trump's assertion that diet soda kills cancer, with medical experts dismissing the claim as unfounded.
It remains unclear what specific scientific studies or evidence President Trump cites for his belief. US Health Secretary Robert F. Kennedy Junior has described President Trump as having the most 'unhinged' eating habits of anyone within his administration.
Your dad argues that diet soda is good for him because it kills grass... so it therefore must kill cancer cells inside the body.
According to Daily Express - US News, Robert F. Kennedy Junior described Trump's diet as consisting of McDonald's, candy, and Diet Coke, noting that he drinks Diet Coke constantly. The health secretary expressed bafflement at how Trump remains alive and energetic despite this regimen.
President Trump is well known for his love of fast food. He exclusively consumes junk food while traveling, as he believes he can trust food from major corporations and wishes to avoid falling ill. When at Mar-a-Lago or the White House, President Trump eats 'really good food'.
He had a Filet-o-Fish, a Quarter Pounder, a Big Mac, and I think he combined two of them.
In October 2025, Republican National Committee chair Joe Gruters revealed that President Trump assembled his own bespoke McDonald's super-burger while out on the campaign trail in 2024. According to Daily Express - US News, Joe Gruters described the custom creation as combining elements from two separate meals into one burger.