Trump's Controversial Diet Soda Cancer Theory Revealed by Top Official
In a startling revelation, a senior US health official has disclosed that President Donald Trump believes diet soda can kill cancer cells inside the human body. Dr Mehmet Oz, Administrator for the Centers for Medicare & Medicaid Services, made the claim during a recent podcast interview with the president's son, Donald Trump Jr.
'Kills Grass, So Must Kill Cancer'
Speaking on the Triggered podcast, Dr Oz explained Trump's unusual reasoning. "Your dad argues that diet soda is good for him because it kills grass... so it therefore must kill cancer cells inside the body," Dr Oz told Trump Jr. This assertion comes despite there being no scientific evidence whatsoever to support the idea that diet soda possesses any cancer-fighting properties.
This is not the first instance where Trump's dietary preferences have drawn scrutiny from those within his administration. The revelation emerges just days after the Trump administration launched its "Make America Healthy Again" dietary guidelines, which specifically advise significant reductions in processed food consumption.
Health Secretary Labels Trump's Habits as 'Unhinged'
US Health Secretary Robert F. Kennedy Junior has been particularly vocal in his criticism, describing the 79-year-old president's eating habits as the most "unhinged" of anyone in his administration. During a January podcast interview with Katie Miller, wife of White House deputy chief of staff Stephen Miller, Kennedy was asked to identify who had the most extreme dietary practices.
"The president," Kennedy stated unequivocally. "The interesting thing about the president is that he eats really bad food – which is McDonald’s and then candy and Diet Coke. He drinks the Diet Coke all the time... I don’t know how he’s alive, but he is."
Kennedy elaborated that Trump primarily consumes junk food while travelling, believing he can safely eat from large corporations because he trusts them and wants to avoid illness. In contrast, Kennedy noted that when Trump is at Mar-a-Lago or the White House, he eats 'really good food'.
Fast-Food Obsession on the Campaign Trail
The president's fondness for fast food is well-documented. In October 2025, Republican National Committee chair Joe Gruters recalled how Trump assembled his own McDonald's super-burger during the 2024 campaign trail. "He had a Filet-o-Fish, a Quarter Pounder, a Big Mac, and I think he combined two of them," Gruters said at the time, expressing amazement at how someone of Trump's age and status could regularly consume such meals.
Kennedy further commented on the apparent contradiction between Trump's diet and his energy levels, saying, "If you travel with him you just get the idea that he’s pumping himself with poison all day long and you don’t know how he’s walking around, much less being the most energetic person any of us have ever met."
Public Health Implications
This scrutiny of the president's personal habits occurs against a backdrop of serious public health concerns. Large consumption of processed foods has been scientifically linked to chronic diseases such as diabetes and obesity – precisely the issues that Trump and Kennedy's "Make America Healthy Again" movement claims to be combating. The administration's new dietary guidelines explicitly recommend major cutbacks on processed food intake, creating a stark contrast with the president's reported eating patterns.
The combination of an unfounded health claim about diet soda and documented excessive fast-food consumption presents a complex picture of the nation's leadership at a time when public health messaging is increasingly important. These revelations raise questions about the alignment between personal behaviour and public policy in the current administration's health initiatives.
