Weight loss, to feel healthier, to prepare for a specific event, or just as a boost in the fitness journey, is on most people's bucket list. Rapid weight loss does need to be approached with care because of potential health risks. In that case, five of the well-researched diets from U.S. News & World Report on Best Diets can be of help in losing pounds efficiently in 2025.
Even when aiming for rapid results, balance and nutrition are key. Structure your meals as follows:
Rapid weight loss may be beneficial to people who face health issues, such as diabetes, high blood pressure, or high cholesterol. In this regard, when their BMI is greater than 30, the very low-calorie diet may be recommended by physicians. These VLCDs may help in controlling risks and facilitating a healthier weight, which further minimizes the chances of suffering from severe conditions, including postmenopausal breast cancer and colon cancer.
For others, rapid weight loss may serve as a motivational impetus but should be balanced with efficacy and sustainability. A healthcare provider should be consulted before beginning any weight loss program.
The Jenny Craig Diet is a highly structured meal program that provides clients with prepackaged, portion-controlled foods to manage calorie intake while teaching them healthy eating habits. This also includes the practice of intermittent fasting for better effects.
One thing that differentiates Jenny Craig is one-on-one coaching. Members receive individualized advice on the timing of meals, portion control, and balanced eating, leading to sustainable weight loss. The average weight loss for participants is 1–2 pounds per week, which makes it a very practical approach for people seeking steady, fast results.
The ketogenic diet, or keto, emphasizes high-fat and low-carb foods to induce ketosis, a state where the body burns fat for energy. This approach leads to significant weight loss, especially in the initial stages.
Beyond weight loss, keto is also said to improve mental acuity, energy, and stabilization of blood sugar. However, the diet's strictness comes at a great cost. Fattening avocado, fatty fish, nuts, and lean proteins are the stars, while carbohydrates in the form of bread, pasta, and sugar are banished.
For individuals who want a convenient, time-saving diet, SlimFast offers effective meal replacement solutions in the form of shakes, bars, and smoothies. It is great for losing up to 20 pounds, meaning participants can get to their goals in 8–10 weeks.
While convenient, it's important to balance other meals with nutrient-rich foods in order to avoid deficiencies. SlimFast is ideal for a busy person who cannot find time for meal planning but wants to lose weight rapidly.
WeightWatchers, recently branded as WW, combines the strengths of behavioral science, nutrition, and technology into a total solution for weight loss. In their point system, users get the freedom to choose from hundreds of foods.
WW is more than a weight loss program, offering programs designed for people with diabetes or those on GLP-1 drugs like Ozempic. The program is comprehensive with a strong app, recipes, and support groups, making it accessible and effective.
The Volumetrics Diet flips the conventional diet on its head, focusing on low-calorie-density foods that are high in nutrients. Think fruits, vegetables, broth-based soups, and whole grains. Participants eat filling, water-rich foods, so they consume fewer calories while still feeling satisfied.
Volumetrics isn't a restriction diet but rather a lifestyle, teaching one portion control and how to eat. It's not a diet, as most of the ingredients can be sourced at any local grocery store.
Also Read: 20-Minute At-Home Pilates To Tone Up And Burn Fat
Though effective diets, rapid weight loss comes with its challenges:
Many rapid plans will initially cause water loss, which is sure to return after the normal eating habit is resumed.
Fad diets will always create an urge to consume and hinder one's ability to stick to a diet for long periods of time.
Eliminating specific food groups entirely can lead to the omission of necessary vitamins and minerals.
These three challenges can be overcome by focusing on rapid weight loss as the stepping stone to good lifestyle changes. This should be complemented with exercise, mindful eating, and stress management to sustain progress.
Quick diets may be a great starting point, but sustainable lifestyle habits are essential for long-term success. These include regular exercise, balanced nutrition, and control of stressors. All of these can maintain a healthy weight.
In any case, all these diets focus on achieving one goal- that of general wellness. Begin small, and create a base upon which to sustain long-term outcomes.
Disclaimer: This article is for informational purposes only and should not replace medical advice. Consult a healthcare professional before starting any diet, especially if you have preexisting health conditions.
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Mounjaro has reshaped weight-loss journeys by powerfully reducing appetite, but doctors are now flagging an important concern. Dr Hasia, who recently addressed this on her Instagram, explained that when food intake drops sharply on Mounjaro, protein intake often falls with it. The result is weight loss that may include muscle, not just fat.
Mounjaro works by influencing hormones that control hunger and blood sugar, helping people feel full faster and eat less. Dr Hasia notes that while this is effective for fat loss, it can quietly lead to muscle breakdown if protein is not prioritised. When protein is low, the body turns to muscle tissue for essential amino acids, weakening the body over time.
In her Instagram post, Dr Hasia shared a simple guideline for those using Mounjaro. Aim for 1.0 to 1.5 grams of protein per kilogram of body weight each day. For example, a person weighing 70 kilograms should target roughly 70 to 100 grams of protein daily. This amount supports muscle preservation even when overall calories are reduced.
Rapid weight loss can sometimes lead to sagging skin and weakness. According to Dr Hasia, protein supports collagen production, which helps maintain skin firmness. It also preserves strength, making day-to-day activities easier and reducing the sense of physical depletion some people report while on Mounjaro.
On days when full meals feel difficult, Dr Hasia recommends small protein-rich snacks. Boiled eggs, edamame, tuna cups, cottage cheese, or a simple protein bar can help meet daily needs without overwhelming the stomach. These options make it easier to stay consistent.
Dr Hasia also highlights the importance of spreading protein throughout the day. Instead of eating it all at once, aiming for 20 to 30 grams per meal allows better absorption and ongoing muscle support. On Mounjaro, consistency matters more than portion size.
Protein, as Dr Hasia reminds her followers, is not an extra on Mounjaro. It is a foundation. Protecting muscle now helps protect metabolism
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Children following vegan and vegetarian diets may be missing key nutrients, according to a group of international researchers who shared their findings on Friday.
Plant-based eating has long been linked with lower risks of heart disease and stronger immunity. Yet a new peer-reviewed study, the largest of its kind, analysed 48,000 children and adolescents and found that vegetarian kids were consuming fewer calories, less protein and fat, and lower amounts of important nutrients like zinc and vitamin B12, which supports the nervous system. Vegan children showed similar patterns, with a particularly noticeable lack of calcium, which is vital for bone health.
“Vitamin B12 rarely reaches adequate levels without supplementation or fortified foods, and calcium, iodine, and zinc are often at the lower end of recommended intake, making them critical nutrients for kids on plant-based diets,” said Dr. Jeannette Beasley, associate professor at New York University and one of the study’s authors.
The research reviewed 59 studies across 18 countries, comparing nutritional outcomes among 7,280 vegetarians, 1,289 vegans, and 40,059 children who ate both plants and meat (omnivores).
While the study highlighted potential nutrient gaps in plant-based diets, it also showed benefits. Vegetarian children consumed more fibre, iron, folate, and vitamin C than omnivores, and both vegan and vegetarian children showed healthier hearts.
They had lower levels of LDL cholesterol, the “bad” cholesterol that can clog arteries and increase the risk of heart attacks and strokes later in life.
“The more animal products replace whole plant foods in the diet, the worse cardiovascular health tends to be,” said Dr. Dana Hunnes, senior dietitian at Ronald Reagan UCLA Medical Center, who was not involved in the study, as per The Independent.
Vegan and vegetarian children were also shorter and had a lower body mass index than meat-eaters, which may reduce the risk of obesity and diabetes—conditions that can further impact heart health.
Although plant-based diets may leave gaps in nutrients like B12 or zinc, careful planning can help children meet their needs.
While animal products are naturally higher in zinc, lentils, pumpkin seeds, and cashews are excellent plant-based sources, with cashews providing nearly eight grams of zinc per cup. These can be eaten as snacks, added to soups, or blended into smoothies.
For vitamin B12, plant-based children can include seaweed or shiitake mushrooms in their diet. A 100-gram serving of shiitake mushrooms contains about 5.6 micrograms of B12.
According to Stanford Medicine, children should get between three and 11 milligrams of zinc depending on age, and between 0.9 and 2.4 micrograms of vitamin B12.
“Our findings suggest a balanced approach is key, with families ensuring kids get enough of vitamin B12, calcium, iodine, iron, and zinc to grow and thrive,” said Dr. Wolfgang Marx, co-author and senior research fellow at Deakin University in Australia.
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A fit and otherwise healthy man in his fifties has been left without sensation on the entire left side of his body after suffering a stroke linked to his daily energy drink habit. Doctors were puzzled at first because his medical history was clear, yet his blood pressure was extremely high. It was only when he admitted to drinking about eight cans a day that they traced the cause of the clot in his brain.
The case has prompted specialists writing in the BMJ Case Reports journal to push for tighter oversight of energy drinks, which are consumed by more than 1.7 million people in the UK. Concerns about their safety have grown in recent years, especially since some contain more caffeine than several shots of espresso.
Reaching for an energy drink may feel like a quick solution when fatigue sets in, but with rising questions about their health impact, experts are asking people to be careful. A December 2025 case report in BMJ Case Reports described how heavy use of energy drinks may raise the risk of heart disease and stroke.
The man in his fifties arrived at the hospital with extremely high blood pressure. He had weakness on the left side of his body, numbness and trouble with balance, walking, swallowing and speech. Tests confirmed a stroke. His blood pressure dropped with treatment, but once he returned home, it rose again despite being on medication.
Further questioning showed he had been drinking roughly eight energy drinks every day. Each one contained around 160 milligrams of caffeine, far above the recommended daily amount. When he stopped drinking them, his blood pressure settled and he no longer needed medication.
Many energy drinks have high levels of caffeine and sugar, both of which can raise health concerns.
“Too much caffeine can disrupt sleep, worsen insomnia and add to mental health strain,” Dr. Frank Hu, a professor of nutrition and epidemiology at Harvard Medicine School of Public Health, told TODAY.com.
The FDA advises that up to 400 milligrams of caffeine a day is safe for most adults. A single energy drink can reach or exceed that range, Hu said. A small energy shot can contain around 230 milligrams of caffeine, an 8.4-ounce drink can have about 80 milligrams and a 20-ounce can may reach 190 milligrams. People react to caffeine differently, the FDA notes.
Katherine Zeratsky, a registered dietitian nutritionist at Mayo Clinic, said that caffeine on its own may be safe for many, but when it is combined with other stimulants commonly found in energy drinks, the total effect may be too strong for the heart and blood vessels.
“The idea is that caffeine mixed with other ingredients creates a stronger stimulant response that affects heart rate, heart rhythm or blood pressure,” Zeratsky told TODAY.com. “That is what can send someone to the emergency department with a cardiac issue.”
Along with caffeine, Hu and Julia Zumpano, a registered dietitian at the Cleveland Clinic’s Center for Human Nutrition, pointed out another problem in many energy drinks: large amounts of sugar.
“Excess sugar contributes to weight gain, obesity and Type 2 diabetes. Because these drinks offer calories without nutrients, it is very easy to take in more than you realise,” Hu said.
Zumpano noted that this sugar load is especially risky for people with diabetes, obesity, heart disease or high triglycerides, which increase the chance of heart attack and stroke. “These drinks can also play a part in developing those conditions,” she said.
If you need an energy boost, the experts encouraged choosing options that are healthier than energy drinks. But if you still decide to buy one, they suggested checking the label closely. Try to avoid caffeine and sugar levels that exceed daily recommendations and stay cautious of long ingredient lists.
Energy drinks often contain caffeine, sugar, added vitamins and amino acids. Common ingredients include ginseng, guarana, L-carnitine and taurine. Zumpano explained that while these may be considered safe on their own, their combined effect is not well understood.
“Some of these ingredients are familiar, and for others we do not have enough strong research, so they are not recommended if you plan to drink them often,” she said. She advised avoiding drinks with ingredients you do not recognise and choosing those with simpler formulations.
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