President Donald Trump believes diet fizzy drinks destroy cancer cells within the body. However, there is no scientific evidence whatsoever to support President Trump's assertion that diet soda kills cancer. US Health Secretary Robert F.
Kennedy Junior has described President Trump as having the most 'unhinged' eating habits of anyone within his administration. 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.
He had a Filet-o-Fish, a Quarter Pounder, a Big Mac, and I think he combined two of them.
When at Mar-a-Lago or the White House, President Trump eats 'really good food'. 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, combining elements from two separate meals into one custom creation. The specific scientific studies or evidence reviewed regarding diet soda and cancer remain unknown.
What constitutes 'really good food' that President Trump eats at Mar-a-Lago or the White House is also unclear.