Isis Kellier is a diet and fitness influencer who regularly shares videos on her channel about how she lost weight fast and got into the best shape of her life. In one TikTok video she reveals how she dropped an average of 2.5 pounds a week by making a few simple changes to her diet and fitness routine. "How I lost 15 pounds in six weeks," she starts the clip, going on to reveal her secrets. We also asked The Diet Diva, Tara Collingwood, MS, RDN, CSSD, LD/N, ACSM-CPT, a Board Certified Sports Dietitian, to weigh in on her tactics.
1
Intermittent Fasting
The first thing Isis did? Intermittent fasting, or "OMAD," she reveals, which stands for "one meal a day. "The Lightly intermittent fasting app helps to keep everything on track," she added. In another video she details what she eats in a day, starting at 2:00 pm with two glasses of green juice followed by a bowl of fruit. For her main meal of the day, "dinner," she eats at 4:00 pm and enjoys spicy vodka pasta with a grilled chicken breast on top. At 5:30 pm she drinks two Premiere Protein shakes.
Related: 8 Things You Should Be Doing Now, According to Wellness Gurus
"It sounds like she is only eating in a less than 4 hour window which is a very small eating window," Collingwood notes. "I like that she has antioxidant rich green juice and fruit, but that is not really a ton of produce or fiber. When you eat most of your produce as juice, you are missing out on a lot of fiber which is really important for gut health and keeping the microbiome in check." As for protein, she is likely meeting her requirements with the grilled chicken, "not sure size but let's assume 4 oz = 28 grams of protein and two premier protein shakes at 30 grams each gives her another 60 grams to push her over 80 grams for the day," she notes. "However, two highly processed protein shakes are not really providing the quality of food we like for overall good health. They do have a lot of vitamins and minerals added to them, which she needs because she is not eating very many calories or a variety of foods." She is happy to see some carbs in the pasta, "but vodka sauce does not really provide much nutritional value," she adds. " Marinara would be much better with the antioxidants and nutrients in tomatoes." Overall Collingwood is concerned about her low calorie intake. "Again, I don't have exact portion sizes but I estimate this to be about 1000-1200 calories."
Related: I'm a Bikini Fitness Competitor and Here's My #1 Rule for Weight Loss
3
30-60 Minutes of Cardio Daily
Next up? "30 to 60 minutes of cardio daily," she reveals. In the other video she reveals that she does "fasted cardio" in the morning prior to her first meal.
According to Collingwood, 30 to 60 minutes of cardio "is great," she says. However, "if she is doing this in the morning and not getting any calories until 2 PM (and that is very few with the green juice and fruit and no protein) she is leaving her body susceptible to poor recovery, injury risk, dehydration, and low energy," she points out.
Related: I'm a Celebrity Trainer and This is the Only Smoothie I Can't Live Without
5
Calorie Deficit
Her final secret to losing 15 pounds in six weeks? Maintaining a "caloric deficit," she says.The basic math of calories in vs calories out is caloric deficit which is necessary to lose weight, Collingwood agrees. "But you can create a caloric deficit in many other more healthy ways that include fueling the body in more regular intervals, feeding more nutritious foods, and having more balance."
6
Bottom Line: Is a 15-Pound Weight Loss in 6 Weeks Realistic?
Collingwood and most experts agree that a healthy weight loss rate is typically one to two pounds per week. "15 pounds in 6 weeks is a bit higher than that," Collingwood points out. "It all depends on how much weight someone has to lose. If you have 100 pounds you lose, it will come off faster initially. If you only have 15 pounds to lose, the weight will come off more slowly.
In general, the faster it comes off, the more likely there is a higher proportion of muscle coming off vs a majority of fat tissue."
💪🔥Body Booster: Intermittent fasting is a form of dieting that works for some people. Oftentimes if you are eating in a short window, you will consume less calories.
Bottom Line: Is a 15-Pound Weight Loss in 6 Weeks Realistic? Collingwood and most experts agree that a healthy weight loss rate is typically one to two pounds per week. "15 pounds in 6 weeks is a bit higher than that," Collingwood points out. "It all depends on how much weight someone has to lose.
Between 1 to 2 pounds (approximately 0.5-1kg) a week is a healthy and realistic target for weight loss, according to Tai — which would mean losing up to a stone across six weeks. However, depending on your body size and unique metabolism, you could lose more or less than that across a 4-6 week period.
On average, a 15 to 20-pound loss (approximately 2 to 5 percent of your starting body weight) is enough to notice "significant changes in your body," he said. You can start seeing differences in yourself as early as two weeks with rapid weight loss.
A realistic, healthy goal in which you lose 15 pounds in three months — the equivalent of 5 pounds per month — can be even better for you. When you lose weight gradually, you're less likely to gain back the pounds. Your weight-loss goals can be achieved in various ways.
How long does it take to lose 15 pounds? “The safest and most sustainable timeline to lose about 15 pounds would be about two to four months,” says Jonathan Valdez, RDN, owner of Genki Nutrition and spokesperson for New York State Academy of Nutrition and Dietetics.
Physical activity, such as walking, is important for weight control because it helps you burn calories. 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.
Exercising is great for your health, but it can take time for your toned body to show. Some ads promise miracle fitness makeovers in 6 weeks, but the truth is that it takes a lot longer than that to get “ripped.” Marketing campaigns might claim otherwise, but the truth is, there's no quick way to get fit.
In the beginning, weight loss happens pretty rapidly. Over a period of 4-6 weeks, you'll likely see a noticeable difference in your body weight [1] — either on the scales or by the way your clothes fit.
Mostly, losing weight is an internal process. You will first lose hard fat that surrounds your organs like liver, kidneys and then you will start to lose soft fat like waistline and thigh fat. The fat loss from around the organs makes you leaner and stronger.
They may feel a difference of 10 or 15 pounds shouldn't affect their facial appearance. But the truth is that weight fluctuations can impact facelift benefits, a surgery where submental fat plays an integral role.
Fat is primarily metabolized and broken down into energy, carbon dioxide, and water. While some waste products from fat metabolism can be excreted through urine, the majority of fat is eliminated from the body through carbon dioxide exhalation and water excretion via sweat, breath, and urine.
“I eat a healthy mix,” she said. “I dropped weight because I've been listening to my doctor—a couple years I didn't. And 90 percent of the time I'm really good at it because a protein diet is good for me anyway. I'm a Texas girl, so I like meat—sorry, vegetarians in the world!”
01/6What is the 90-30-50 diet plan? The 90-30-50 diet plan is a structured approach to eating that focuses on specific macronutrient percentages for daily intake: 90% carbohydrates, 30% protein, and 50% fat. This diet plan has garnered attention due to its multiple health benefits.
This is why rapid weight loss diets often cause people to regain the weight they lost instead of keeping it off. Experts generally agree that losing one to two pounds per week is safe and sustainable. You should aim to lose between eight and 16 pounds over the course of two months.
Planning to lose 15 pounds in a month? While it may be possible, rapid weight loss like that isn't typically safe or sustainable. In other words, just because can you lose 15 pounds in a month doesn't mean you should. Instead, it's best to develop long-term, beneficial habits that support your weight-loss goals.
To lose 20 pounds in 6 weeks, it means you need to be losing somewhere around 3.3 pounds every week. Let's break it down to daily instalments. 3.3 pounds is roughly 11550 calories, and that translates to 1650 calories every day.
Losing 10 pounds may take 5–10 weeks or more. This equates to a calorie deficit of around 500 calories per day. While diet is the most important factor in losing weight, people can make other lifestyle adjustments to help them reach their goals.
However, this type of weight loss can damage your body and cause you to lose muscle. On the other hand, losing one to two pounds each week is considered a healthy weight loss pace. That means you can safely lose 15 pounds in about eight weeks. Concentrate on burning more calories than you consume through exercise.
Hobby: Shopping, Table tennis, Snowboarding, Rafting, Motor sports, Homebrewing, Taxidermy
Introduction: My name is Duncan Muller, I am a enchanting, good, gentle, modern, tasty, nice, elegant person who loves writing and wants to share my knowledge and understanding with you.
We notice you're using an ad blocker
Without advertising income, we can't keep making this site awesome for you.
