Library.

“Combining protein with fruit as a carbohydrate source is the optimal macronutrient pairing for human metabolic function.”

No credible scientific source identifies protein paired with fruit as "the optimal macronutrient pairing for human metabolic function." While evidence confirms that adding protein to carbohydrate-containing meals can moderate short-term blood sugar spikes, this narrow benefit does not establish a single pairing as universally optimal. The highest-authority peer-reviewed sources explicitly state that ideal macronutrient balance remains debated and multiple dietary compositions support metabolic health.

“Fast-digesting carbohydrates (simple carbs) are not necessary for human bodily function.”

The human body does not have a strict physiological requirement for fast-digesting (simple) carbohydrates specifically. While authoritative medical sources confirm that carbohydrates broadly are important for energy and brain function, none establish that simple carbs in particular — as distinct from complex carbs or endogenously produced glucose — are uniquely required. The body can generate glucose through gluconeogenesis from non-carbohydrate sources. However, the claim omits practical scenarios where fast-acting carbs are medically beneficial, such as treating hypoglycemia.