Everything You Need to Know About 12-3-30, the Walking Workout That Helps People Lose Weight Fast

So, you want to lose weight fast – without having to pay a personal trainer or sign up for a class? One of the most popular workouts for weight loss doesn’t require a gym membership or an expensive fitness pass. In fact, all you need is a treadmill and a pair of sneakers. The 12-3-30 workout has millions upon millions of views on TikTok for a reason – it works. Here is everything you need to know about the 12-3-30 treadmill workout.

Lauren Giraldo Created the 12-3-30 Workout

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When she was 24, Lauren Giraldo made the 12-3-30 treadmill workout go viral. It involves setting the treadmill to a 12% incline and walking at 3 miles per hour for 30 minutes. She first shared the treadmill routine in a 2019 YouTube video, uploading it to Instagram and TikTok in 2020, where it went viral. In the clips she claimed that it helped her lose 30 pounds.

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She Was Intimidated By the Gym

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"I used to be so intimidated by the gym, and it wasn't motivating," Giraldo explained in a 37-second TikTok video. "But now I go, I do this one thing, and I can feel good about myself."

She Calls It a “Game Changer”

“Game changer honestly. Have you tried my treadmill routine?” she captioned another post.

She Struggled to Run

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Giraldo explains that her struggle to run on the treadmill let her to seek an alternative. "I'm not a runner, and running on the treadmill was not working for me," she told TODAY.com. "I started playing around with the settings, and at the time, my gym's treadmill had 12 incline as the max. The three miles per hour felt right, like walking, and my grandma had always told me that 30 minutes of exercise a day was all you needed. That's how the combination started."

Most Fitness Experts Are On Board with the 12-3-30

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While some viral workouts aren’t exactly endorsed by fitness experts, there is little controversy surrounding the 12-3-30. In fact, there is scientific evidence supporting it.

Walking Slower on an Incline Burns More Calories Than Running on a Flat Surface

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Walking on an incline burns more calories than walking fast or even running on a flat surface, which is why many experts suggest upping your incline. A 2013 study even found that walking on a 2 to 7 percent incline increased heart rate by almost 10 percent when compared with running on a flat surface.

Our Resident RDN Also Agrees

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“Walking is an excellent way to get started in exercise,” agrees Body Network’s Resident RDN, The Diet Diva, Tara Collingwood, MS, RDN, CSSD, LD/N, ACSM-CPT, a Board Certified Sports Dietitian and a co-author of the Flat Belly Cookbook for Dummies. If you don’t want to jog/run, elevating the incline on the treadmill is a great way to get your heart rate higher, she adds.

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You Might Want to Start at a Lower Incline, She Says

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“However, be careful with how much and how long you do the incline. Start with just a few degrees for a few minutes. Bring it back down for a few minutes and raise it again, repeating several times in interval style. I have seen people get injured by doing too much incline too quickly and not letting their body acclimate to it.”

💪🔥Body Booster: You don’t have to start with 30 minutes. Try doing a 12-3-15 instead.

In our fast-paced world, finding time for exercise can be challenging. Many of us wonder if a quick daily walk can really make a difference in our weight loss journey. Autumn Bates, a certified Clinical Nutritionist with a Master's in Sports Nutrition, specializes in using Intermittent Fasting and Nutrition to help people achieve their weight loss and wellness goals. She's here to shed light on the effectiveness of a 30-minute daily walk for weight loss.

Supporting her insights are experts from the Mayo Clinic, including Dr. Donald Hensrud, who offer additional perspectives on the power of walking for weight management. Together, these experts provide a comprehensive look at how a simple daily walk can be a game-changer in your weight loss efforts.

The Science Behind 30-Minute Walks

In her post, Autumn explains, "Recently, one of you guys had explained to me that you only have 30 minutes to walk per day, and is that even going to be worth it for your weight loss goals?"

To answer this, she cites a study where participants incorporated a 50 to 60-minute walk three times per week. "After 12 weeks of this experiment, they found that compared to the control group, this walking group actually had reduced belly fat as well as improved blood glucose levels," Autumn reports. This suggests that even modest increases in daily walking can have significant impacts on weight loss.

Expert Opinions on Walking for Weight Loss

Dr. Hensrud from the Mayo Clinic supports this view, stating, "You might be able to lose weight by walking. But it depends on how long and how intensely you walk and what your diet's like." This underscores the importance of considering both duration and intensity when walking for weight loss.

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How Many Steps Can You Really Get in 30 Minutes?

The number of steps you can accumulate in 30 minutes varies based on your walking speed. Autumn breaks it down: "If you're walking about three miles per hour, which is a fairly leisurely pace, you're going to be getting around 3,000 steps during that 30-minute walk. However, if you're one of those super speed walkers and you're walking around five miles per hour, then in that same 30 minutes, you're going to be getting around 7,300 steps."

This range of 3,000 to 7,300 steps can significantly contribute to your daily activity level.

Maximize Your 30-Minute Walk with These Tips

Autumn emphasizes the benefits of walking outdoors: "Being outside or walking outside has been found to help reduce those serum cortisol levels." She adds, "What I also love about walking outside is that you're also going to be getting a variable type of terrain." This variety challenges different muscles compared to a treadmill.

However, Autumn notes, "If the weather doesn't really allow for it, then walking on a treadmill is obviously going to be better than just not walking at all."

The Evening Walk: A Secret Weapon for Better Sleep and Weight Loss

Autumn highlights the connection between sleep and weight loss: "We know that sleep is extremely important for weight loss. That poor sleep is really tied to increased rates of obesity." She explains why: "When you get that poor sleep, it causes your body to increase ghrelin or hunger hormone the next day, as well as cortisol levels."

An evening walk can help improve sleep quality. "I typically like to go on some type of evening walk after dinner. It just helps with digestion anyway, but it also just helps to acclimate my body to actually being able to get ready for bed," Autumn shares.

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How Much Walking is Needed for Weight Loss?

While Autumn emphasizes the benefits of a 30-minute daily walk, some experts suggest even more for optimal results. According to Mayo Clinic, "For even more health benefits, get 300 minutes a week or more of moderate aerobic activity. Exercising this much may help with weight loss or keeping off lost weight."

Balancing Duration and Intensity

This translates to about 60 minutes of brisk walking five days a week. However, Autumn's approach of consistent 30-minute walks aligns with Dr. Hensrud's advice: "If you add 30 minutes of brisk walking to your daily habits, you could burn about 150 more calories a day. Of course, the more you walk and the quicker your pace, the more calories you'll burn."

Starting Your Walking Journey: Tips for Beginners

For those new to walking for weight loss, it's important to start gradually. Dr. Hensrud recommends, "If you're new to regular exercise, you may need to start out with short walks or walking at a light intensity. Then slowly work up to longer walks or more moderate or vigorous activity." This aligns with Autumn's suggestion of breaking up walks into 10-minute chunks throughout the day if needed.

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The Long-Term Benefits of Consistent Walking

While immediate results might not be apparent, consistency is key. A study on postmenopausal women found that "Slow walkers in the residual group progressively lost a significant percent of total body fat over 30 weeks," suggesting that consistent, long-term walking can be effective for fat loss. This supports Autumn's emphasis on making walking a daily habit.

Combining Walking with a Healthy Diet

Both Autumn and Dr. Hensrud stress the importance of combining walking with a healthy diet for optimal weight loss results. As Dr. Hensrud notes, "So keep walking, but make sure you also eat a healthy diet." Autumn's expertise in nutrition and intermittent fasting can provide valuable guidance in this area, making the combination of regular walking and proper nutrition a powerful strategy for weight loss.

Aim for Daily Walks

Autumn emphasizes that consistency is more important than quantity. "I think the real big takeaway here is that you don't need to be vastly increasing the number of steps you're taking per week. Even just modestly increasing to 30 minutes per day can actually have a really great impact on your weight loss goals," she concludes.

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Flexible Approaches to Daily Walking

Autumn recommends getting in at least 30 minutes of walking per day, but adds, "It doesn't have to be all at once. In fact, most of us can find 10-minute chunks per day to just break up our day, add a little bit of a walk in here and there, which might be a little bit easier for your schedule to break it up that way." And if you enjoyed this article, don't miss12-3-30 Walking Method: 20 Proven Tips to Lose Weight Faster.

You might have heard that walking is the best workout for weight loss. However, you might have heard the opposite. One expert is explaining everything you need to know about walking for weight loss – and if it is actually effective. Michaela, AKA Dr. Miche, PhD, is a research scientist who shares studies on weight loss, nutrition, health & fitness “to help you reach your goals!” she explains in her YouTube bio. In a new viral video, she addresses the question: Should you walk for weight loss? “Can losing weight really be as easy as just adding a few walks a week to your routine? The information out there is all over the place. As usual, I'm going to the actual scientific studies to find the answer. I'm also gonna tell you about how you can optimize the amount of fat burning you do from walking, and I bet you'll be surprised by the answer,” she says.

Some Say Walking Is Great for Weight Loss, While Others Say the Opposite

“The question of whether walking is useful for weight loss is more controversial than one might expect because if you do a Google search, you'll get information strongly on both sides of the spectrum,” she says in her post. “For example, you'll have blogs and news articles that say that walking is not useful for weight loss. You can also find a bunch of popular sites like magazines and whatnot, saying that walking is extremely useful for weight loss.”

She Discusses Three Studies

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She says she goes “straight to the science” to find out the answer, including a meta-analysis on whether walking is good for weight loss, “whether just adding walking to your routine and changing nothing else causes weight loss,” she says. “I'll also be going over a study that compares walking to running and biking for the same amount of time to see how fat burning varies between those three. And then lastly, I will be going over a study on how you can burn the most fat for a given amount of walking.”

When Losing Weight, You Actually Want to Reduce Body Fat Percentage

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“When most people say they want to lose weight, what they really mean is that they want to lose fat and lower their body fat percentage because the aesthetic benefits and the health benefits of weight loss pretty much all come from lowering your body fat percentage,” she points out. “A lot of people end up looking a lot better and getting a lot healthier while staying at the same weight because they lose fat and gain muscle. So a lot of the results I'll be talking about today are about body fat percentage in addition to weight, but the ones we should really care about are body fat percentage.”

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The First Study Instructed People to Walk More

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The first study, a meta-analysis that included over 1100 participants and examined various walking interventions for weight loss and cardiovascular health, “looked at randomized controlled trials where the only thing the researchers did was tell participants to walk more,” she says. “Their diets weren't changed, their other aspects of exercise weren't changed, they just had more walking added to their usual daily lives.” It found that, on average, these studies had people walk four times a week for 40 minutes per session for 35 weeks with no dietary interventions, and “they found that on average people lost two pounds or one percentage point of body fat, which is kind of a lot for just adding walking to your routine.”

The People Who Walked More Lost More Weight

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The people who didn’t add walking gained weight. “Not only did adding walking to people's routines prevent the weight gain that most people have happened to them over time as they age, but adding walking also caused weight loss on top of that prevention of weight gain,” she says, pointing out that it added up to a “net weight loss of like five pounds compared to the people who didn't add any walking to their routine.”

It Also Lowered Blood Pressure

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“The meta-analysis also found that just adding 40 minutes of walking four times a week lowered blood pressure by one to 1.5 points for both systolic and diastolic blood pressure and also raised VO two max by three, which is a measure of cardiovascular fitness. So people increase their fitness and lower their blood pressure substantially thanks to just adding a little bit of walking to the routine.”

The Next Study Compared Walking to Running and Biking

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She moves on to the study comparing walking to running and biking. “They matched all of these exercises in terms of how long participants spent doing them, how often they did them, and even their heart rate was approximately matched between each of these exercises. Participants were randomly assigned to do running, walking, or biking, and for every group, participants did these exercises 30 minutes per session three times a week for 20 weeks,” she says.

Here Is What Participants Had to Do

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“The walking group walked approximately 3.75 miles per hour, which is a pretty brisk walk, and the running group ran between six and seven miles per hour, and that varied by person depending on their age and how hard that was for them because they tried to match the intensity between these different exercises within a given person.” The biking group biked at approximately 60 to 70 RPM.”

The Walkers and Runners Lost the Most Pounds

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The results? “The running group lost three pounds over these 20 weeks, just running three times a week for 30 minutes. The biking group lost two and a half pounds doing these same number of sessions, while the walking group lost three pounds. So the walking group lost just as much as the running group and lost more than the biking group.”

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But the Walkers Lost More Than Double the Body Fat

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As for “the more important numbers, which is body fat percentage,” the running group lost about 1.2 points, the biking group also lost about 1.2 points, whereas the walking group lost three body fat percentage points. So more than twice as much as the running and biking groups, despite doing the same number of sessions of exercise for the same amount of time,” she says. “This may sound crazy, but it actually makes sense based on what we know about fat burning at different intensity levels.”

The Third Study Looked at Fat Oxidation Levels

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She moves on to the third study, where researchers “looked at how to reach peak fat oxidation levels during exercise.” She explains that “you want to be at peak fat oxidation levels if you are trying to lose fat because it means you are at your best fat-burning point in terms of intensity.” Researchers looked at grams, not percentages. “If you're sitting around doing nothing, you're actually gonna be burning a very high percent of fat. It just won't be very much,” she says. “Whereas you wanna get to a point where you're doing enough exercise at enough intensity to burn the maximum amount of fat before it starts to decline from burning too many carbs.”

Here’s How to Calculate Your Optimal Oxidation

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“There's like a sweet spot where you're burning more from doing stuff but not doing so much stuff that you stop burning fat,” she continues. “The study found that the maximum level of fat oxidation happens at about 60% of your maximum heart rate, and that is very easy to calculate. The crude estimate that is generally given is 220 minus your age, which equals your maximum heart rate. So if you're looking to maximize how much fat you burn from walking, then you should aim to walk at an intensity that causes you to be at about 60% of your maximum heart rate.”

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Or, Use These Averages for Men and Women

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If you don't feel like calculating that and figuring it out, the study found that for men, the average best rate of walking was 3.4 miles per hour, whereas, for women, it was about three miles per hour to maximize fat burning.

Bottom Line: Walking Is Great for Weight Loss

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“The next time you hear someone talking about how walking is useless for weight loss or how it's far inferior to running or biking or whatever else, you know how some science you can show them if you want to refute them and defend the wonders of walking,” she says. “I hope this can encourage you to consider adding walking to your routine not only for weight loss but also because it's just amazing for your health, and it's nice to get outside.” And if you enjoyed this article, take advantage of these 15 Quick Ways to Lose Body Fat Percentage in a Week.