Does exercising on an empty stomach at 9 a.m. count as fasting cardio?
Jun 13, 2023
Source: Cainiu Health
Dr. Lin Yunfei
Introduction
Generally speaking, aerobic exercise performed at 9 a.m. can be considered fasted cardio. Typically, fasted exercise refers to physical activity carried out 4–6 hours after eating, when blood glucose and insulin levels are low, causing the body to primarily rely on fat as an energy source, which is beneficial for fat burning and weight loss. Although exercising at 9 a.m. is relatively close to breakfast time, it still falls within this window.
In general, aerobic exercise performed at 9 a.m. can be considered fasted cardio. Details are as follows:
Typically, fasted exercise refers to physical activity conducted 4–6 hours after eating, when blood glucose and insulin levels are low, causing the body to primarily use fat as an energy source, which is beneficial for fat burning and weight loss. Exercising aerobically at 9 a.m., although relatively close to breakfast time and possibly accompanied by elevated blood glucose and insulin levels, can still be regarded as fasted cardio. However, it should be noted that performing aerobic exercise before breakfast may lead to hypoglycemia symptoms such as dizziness and fatigue; therefore, exercise timing and intensity should be adjusted appropriately. Additionally, individuals with chronic diseases or physical discomfort should exercise only under medical guidance.
It is important to note that if discomfort occurs during or after exercise and persists for an extended period without improvement, prompt medical attention is recommended.
