If you’ve ever tried to figure out the best time of day to exercise for weight loss, you’ve probably been overwhelmed by conflicting advice. Some fitness experts say early morning workouts are the golden ticket, while others claim lifting weights in the evening is more effective. And then there’s high-intensity interval training (HIIT) every hour on the hour.

Let’s take a step back from the hype and focus on what actually matters—your goals, your lifestyle, and what research tells us about the benefits of different workout times.

Morning Workouts: A Fresh Start for Fat Burning

Exercising first thing in the morning—especially before eating—has gained popularity among people trying to shift stubborn fat. But this is not a good idea for females. Dr Stacey Sims says females should eat before exercising. Dr. Stacy Sims advises women against fasted workouts, especially in the morning, due to the impact on cortisol levels and muscle breakdown. Instead, she recommends a small pre-workout snack to provide fuel and support hormone regulation. Many also find that morning cardio helps kick-start the day with better focus and energy.

Some evidence suggests that early workouts might also improve blood flow to areas that tend to hang onto fat longer, such as the belly or hips. This could help the body mobilise fat more effectively, especially in combination with a consistent, healthy lifestyle.

And there’s another bonus: morning workouts are less likely to interfere with your evening routine or disrupt your sleep cycle—something that plays a surprisingly big role in appetite control and weight regulation.

Evening Workouts: More Power, More Muscle

If you’re not a morning person, don’t worry—there’s still plenty of benefit to training later in the day. Many people report feeling stronger and more energised in the afternoon or early evening, which can lead to more intense and productive workouts.

This can be especially helpful for strength training. Building muscle boosts your metabolism, helping you burn more calories even while resting. If lifting weights or high-intensity workouts are your focus, training later in the day might suit you better. Dr. Stacy Sims recommends that the best time to train for muscle growth and strength is typically in the afternoon, between 2:30 pm and 8:30 pm, assuming a typical sleep-wake cycle. This timing is linked to the body’s natural peak in temperature and muscle function during those hours. However, if your sleep schedule differs, aiming for 6-7 hours after waking can be an effective alternative.

However, it’s worth being mindful of how late you’re exercising. High-intensity sessions too close to bedtime can stimulate your nervous system and raise your body temperature, both of which can make it harder to fall asleep. Poor sleep, in turn, can make it harder to control cravings and maintain energy the next day.

The Key Is Consistency

Still torn between morning or evening workouts? Here’s the truth: the total amount of energy you burn over time is what really matters when it comes to fat loss—not the hour on the clock when you’re doing it.

What’s most important is finding a time that fits your routine and allows you to stay consistent. People who stick to regular workout times often find it easier to build long-term habits, recover properly, and make exercise part of their lifestyle.

To support fat loss and improve body composition, aim for:

• At least 3 hours of moderate cardio per week, or
• 100 minutes of high-intensity interval training (HIIT)

Adding strength training to your week is also essential, as it supports muscle growth and long-term metabolic health and can help perimenopausal women.

So, When Should You Work Out?

The best time to exercise is when you’ll actually do it. Morning workouts may help with fat burning and better sleep. Evening workouts may help you train harder and build more muscle. Both are effective—as long as you’re consistent.

Whether you’re an early bird or a night owl, commit to a routine that works for you. That’s the real secret to lasting fat loss success.

Looking to improve your fitness or support your weight loss journey through better nutrition? At Nurtura Health, our qualified naturopaths can help you optimise your energy, metabolism, and overall wellbeing with personalised, natural health solutions. Book an appointment today to get started.