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:

• Fill half your plate with non-starchy options like spinach, zucchini, and bell peppers.
• Include lean sources such as chicken, tofu, or eggs to preserve muscle mass.
• Add avocado, nuts, or olive oil for essential nutrients.
• Choose complex carbs like quinoa or sweet potatoes, but keep portions small.

Is Rapid Weight Loss Ever a Good Idea?

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.

5 Best Diets for Rapid Weight Loss in 2025

1. Jenny Craig Diet

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.

2. Ketogenic Diet

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.

3. SlimFast Diet

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.

4. WeightWatchers Diet

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.

5. Volumetrics Diet

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

Essentials of Rapid Weight Loss

Though effective diets, rapid weight loss comes with its challenges:

Water Weight vs. Fat Loss

Many rapid plans will initially cause water loss, which is sure to return after the normal eating habit is resumed.

Sustainability

Fad diets will always create an urge to consume and hinder one's ability to stick to a diet for long periods of time.

Nutrient Deficiencies

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.

Lifestyle Changes for Maintaining Weight Loss

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.

Children who consume more ultra-processed foods may show stronger brain responses that could make them crave those foods repeatedly. This helps explain the link between these foods and childhood weight gain, according to a new study.

The research, published in JAMA Network Open, found that kids who ate more ultra-processed foods had greater activity in a brain region that is involved in reward and motivation when they saw tempting pictures of appetising foods. That brain activity was also associated with increase in body fat over the following year.

The findings raise important questions about how eating highly processed foods frequently may affect a developing brain.

UPFs May Influence A Developing Brain

Also read: Six To Eight Cups Of Tea A Day Linked To Lower Heart Disease Risk: But Should You Drink More?

The study included 46 children aged 7 to 10 who had a healthy weight at the beginning of the research. Scientists collected data about their diets and used functional magnetic resonance imaging (fMRI) to examine brain activity while the children viewed pictures of appetising foods, including cookies and French fries.

The researchers focused on the striatum, a brain region involved in learning, motivation and reward anticipation.

Children who consumed more ultra-processed foods showed stronger responses in the dorsal striatum when viewing food images. Greater activity in this region was also linked with an increase in body mass index (BMI) and body fat percentage one year later.

The researchers found that accounting for differences in brain responses weakened the association between ultra-processed food intake and subsequent increases in BMI by 31% and body fat percentage by 44%. This suggests that brain activity related to reward may help explain part of the relationship.

Senior study author Dr Kathleen A. Page, a professor of medicine and pediatrics at the Keck School of Medicine of the University of Southern California, said, “This study goes beyond just understanding that UPFs affect weight gain. It actually gives us insight into the neurobiological underpinnings by which these foods may be linked to body composition over time.”

Importance Of Childhood Nutrition

Also read: Peanut Consumption Associated With Lower Type 2 Diabetes Risk: Study Explains

Ultra-processed foods include many packaged snacks, sugary cereals, sweetened drinks, instant meals and other similar products. They are often designed to be convenient, appealing, and have a long shelf life.

The researchers say childhood is an important period for understanding how food habits influence eating patterns and long-term health.

“Children’s brains are still developing, habits are still forming and food preferences are still being made. It’s an important period where the brain is very sensitive to food and the food environment,” Page said.

The research had key limitations. It involved only 46 children, assessed brain activity at a single time point and followed changes in body composition for one year. The observational design means researchers cannot determine whether greater ultra-processed food consumption caused the brain responses or whether other factors contributed to both.

Message For Parents

The findings point to existing concerns about children's diets high in ultra-processed foods. Page emphasised the importance of making healthier options more accessible.

“Changing the food environment to help people access healthier, more minimally processed foods is an important part of the solution,” she said.

Families can offer more fruits, vegetables, whole grains, pulses and other minimally processed foods while limiting consumption of sugary drinks and packaged snacks.

Whey protein is one of the most heavily marketed supplements in the fitness world, but the actual science behind it is more modest than the gym lore suggests.

Muscle is constantly being broken down and rebuilt, and the balance between those two processes over weeks and months determines whether you gain or lose muscle.

Resistance training raises the rate of muscle rebuilding, called muscle protein synthesis, and eating protein raises it further. Whey, the liquid left over when milk becomes cheese, digests quickly and is naturally high in leucine, an amino acid that appears to help trigger that rebuilding process. In short-term lab studies, this gives whey a sharper spike in synthesis compared with slower-digesting proteins like casein.

A short-term spike doesn’t automatically mean more muscle over months, though. What actually matters for long-term gains is a different question: how much total protein someone eats in a day.

How Much Protein Do We Actually Need?

A widely cited 2018 meta-analysis in the British Journal of Sports Medicine, led by Robert Morton and colleagues at McMaster University, looked at this directly. Pooling 49 resistance training trials with 1,863 participants, the researchers found that protein supplementation significantly increased gains in strength, muscle mass, and muscle fibre size compared with resistance training alone.

The benefits levelled off once total daily protein intake reached roughly 1.62 grams per kilogram of body weight, the study found. Past that point, extra protein, from whey or any other source, mostly just becomes calories. For an 80-kilogram (176-pound) person, that threshold works out to about 130 grams of protein a day.

Also Read: Is Lemon Water Really Helpful for Preventing Kidney Stones?

Right Time To Consume Protein

The idea of a 30-minute “anabolic window” after a workout has largely fallen out of favour in the research. When studies control for how much protein people ate in total, tight timing around workouts shows little added benefit.

Total daily intake is what predicts outcomes, not whether a shake was consumed within a specific window after training. Spreading protein across three or four meals a day is a reasonable habit, but missing a post-workout shake by an hour or two makes little practical difference.

Where Whey Actually Fits

If someone’s diet already supplies enough protein from food, around that 1.6 g/kg mark, a shake adds little extra benefit. Whey becomes useful mainly as a convenient way to close a gap when a person’s diet otherwise falls short, particularly because of its speed, high leucine content, and long shelf life compared with whole-food protein sources like chicken, eggs, or fish.

A few groups should be cautious. People with kidney disease should talk to a doctor before raising protein intake, and whey, as a dairy product, isn’t suitable for anyone with a milk allergy. People with lactose intolerance may tolerate whey isolate, which has less lactose than concentrate, but should check with a clinician if unsure.

Whey builds muscle the same way other high-quality proteins do: by helping people hit a sufficient total daily protein target alongside resistance training. It isn’t a shortcut or a requirement, just one convenient tool among several for reaching the same number. Training remains the main driver of muscle growth. Protein, whey included, is what supports it.

Avid tea drinkers now have a reason to rejoice as drinking tea regularly may be linked with a lower risk of cardiovascular disease. A new study has found that people who drank around six to eight cups a day are at low risk. However, researchers warn that this does not mean everyone should increase their tea consumption.

Published in the Journal of Internal Medicine, the study examined data from 485,934 adults in China, aged 30 to 79. Over an average follow-up of about nine years, researchers identified 14,863 cases of cardiovascular and other vascular diseases, including heart attacks, strokes and peripheral artery disease.

Tea Drinkers At Lower Heart Disease Risk

People who drank tea at least three days a week had an approximately 11% lower risk of developing vascular disease than those who drank it less frequently.

The lowest estimated risk was observed among people who drank around six to eight cups daily. However, risk began to rise again at higher consumption levels.

The findings are based on an observational study. It means that they just show an association rather than proving that tea directly prevents heart disease. It is also important to note that participants reported their own habits of drinking tea, and researchers did not use a standard cup size.

Emergency physician Dr Leana Wen cautioned against interpreting the results and drinking multiple cups of tea as a daily target, according to CNN. She said, "People should not interpret this to mean that everyone should aim to drink six to eight cups of tea daily."

Also read: India Proposes Lower Pesticide Residue Limits In Tea Than US & Japan: What Are The Health Risks?

What Type Of Tea Is The Most Beneficial?

The study mostly found associations between black tea consumption and lower cardiovascular risk across different types of vascular disease. Green tea showed benefits for heart health, according to the study.

Black and green tea come from the same plant, Camellia sinensis, but the leaves are processed differently, resulting in different compositions of polyphenols.

Tea contains polyphenols, including flavonoids, which have antioxidant and anti-inflammatory properties. These compounds may help support blood vessel function. Some research has also linked tea consumption with improvements in blood pressure and cholesterol.

However, researchers cannot rule out other lifestyle factors. People who drink tea regularly may differ from non-drinkers in their diet, physical activity, smoking habits and other aspects of health.

Dr Wen said, “Both can be part of a heart-healthy diet — especially if people take care to drink them without added sugar.”

Also read: Mississippi Student Deaths Put Kratom Under Scrutiny: How Dangerous Is It?

Why You Should Avoid Drinking Tea Scalding Hot

The study also found that people who reported drinking tea at a “burning hot” temperature had a 16% higher risk of vascular disease than those who did not regularly drink tea.

The researchers trusted the participants' descriptions of their preferred drinking temperature, rather than measuring the temperature directly. The finding should therefore be interpreted accordingly.

There is another reason to let tea cool before drinking it. Repeated consumption of very hot beverages has been linked to an increased risk of oesophageal cancer.

Researchers Warn

The study does not prove that drinking more tea will lower an individual's risk of heart disease, and the findings may not apply in the same way to every population.

Additionally, tea also contains caffeine. An eight-ounce cup of black tea typically contains around 30 to 50 milligrams, while green tea generally contains less. Excessive caffeine intake can contribute to sleep problems, anxiety or palpitations. Pregnant people are generally advised to limit caffeine to 200 milligrams a day,.

Drinking unsweetened tea can be part of a daily diet, especially when it replaces sugary drinks. Apart from this, regular physical activity, avoiding smoking, maintaining healthy blood pressure and cholesterol levels, and eating a balanced diet still remain the basic ways to reduce cardiovascular risk.