Bone Broth Diet for Weight Loss: Does It Really Work and Is It Safe?

If you visit a health food store or browse wellness content online, you'll probably see people talking about bone broth as a solution for almost everything. Have joint pain? Try bone broth. Stomach problems? Bone broth. Want to lose weight? Many people recommend bone broth for that, too.

The reality is somewhere between the excitement and the skepticism. Bone broth is a nutritious food that can offer some health benefits, but claiming that it should be the main focus of a weight-loss diet is a much bigger idea that needs a closer look.

Here's an honest breakdown of what the bone broth diet involves, what science says about it, and whether it's worth trying. 

What Is the Bone Broth Diet?

Even though it's very popular, there isn't one official version of the bone broth diet. Different plans are shared online, and some are much more restrictive than others.

The most common version of the bone broth diet lasts for three weeks. Most days, you eat regular meals that focus on protein-rich foods like chicken, fish, and eggs, along with vegetables and healthy fats. On two days each week, many of your usual meals are replaced with bone broth, which greatly reduces your calorie intake. In this way, the diet works similarly to the 5:2 intermittent fasting method, with bone broth helping you get through the lower-calorie days.

Other versions are more flexible. Some people drink one or two cups of bone broth each day as part of their normal diet, using it as a nutritious addition rather than following a strict eating plan. On the more extreme side, some diets involve spending several days drinking mostly bone broth and very little else, which is essentially a liquid fast presented as a wellness trend.

Bone broth is made by slowly simmering animal bones, often with joints and connective tissues, in water for many hours, sometimes up to 24 hours. This process releases protein, gelatin, and small amounts of minerals into the liquid. The result is a warm, flavorful drink that is low in calories, contains a decent amount of protein, and is easy to consume, making it a convenient option for lower-calorie or fasting-style days.

Why Has It Caught On?

One reason the bone broth diet appeals to many people is that it feels natural and familiar. Unlike supplements or diet pills, bone broth is a real food that has been prepared in home kitchens for generations. Because of this long history, many people see it as more trustworthy than heavily processed diet products.

There's also the benefit of having a clear plan. Many people find it easier to follow a healthy eating routine when the guidelines are simple and specific. When you know exactly what to eat and when to eat it, there’s less confusion and fewer daily decisions to make. For some people, this structure can make it easier to build and maintain healthier habits.

Social media has also played a big role in making the bone broth diet popular. Photos of warm, rich-looking broth are appealing and easy to share online. Stories about quick weight loss or other dramatic results often spread fast. After seeing the same claims repeated again and again, many people start to accept them as facts, even when there isn't much scientific evidence to support them.

Potential Benefits: What the Evidence Actually Shows

The bone broth diet can offer some benefits, as long as you have realistic expectations about what it can and cannot do.

• It reduces calorie intake. Whether you're replacing some meals with bone broth or following designated low-calorie days, most versions of the diet lead to eating fewer calories overall. If weight loss happens, it's mainly because of this calorie reduction, not because bone broth has any special fat-burning properties. 
• The protein in bone broth may help you feel fuller for longer. Depending on how it's made, a cup of bone broth usually contains around 6 to 12 grams of protein. Protein is known to be the most filling nutrient, so including it throughout the day, even in a liquid form like broth, can help reduce hunger and make lower-calorie days easier to manage.
• It provides a clear framework. For someone who feels overwhelmed by too many food choices or has been eating irregularly, having a simple plan can feel like a reset. Even if the structure isn’t perfect, it can still be a helpful starting point for building healthier habits over time. 
• It’s also low in calories and very easy to prepare. A warm cup of broth can feel more satisfying than plain water during fasting, which may make low-calorie days feel a bit easier and less uncomfortable for some people.

Does It Actually Cause Weight Loss?

Yes, but likely not because of anything special about bone broth itself.

One published study examined a structured eight-week programme combining bone broth with 5:2-style intermittent fasting and calorie-controlled whole-food meals. Participants lost a significant amount of weight during the study, and some measures of metabolic health also improved.

However, the study design makes it difficult to credit bone broth on its own. The programme also included fasting days, portion-controlled meals, and an overall structured eating plan, all of which are known to support weight loss. Because of this, it’s not possible to separate the specific effect of bone broth from the rest of the approach.

Beyond that one study, the bone broth diet hasn’t been tested in long-term, randomized controlled trials, which are considered the gold standard for proving whether a diet truly works. Most of what we know comes from research on individual parts, like intermittent fasting, calorie reduction, and higher protein intake, rather than on the bone broth diet itself as a complete system.

It’s also important to understand why weight often drops quickly in the first week. When you sharply reduce calories and carbs, your body uses up its glycogen stores (the form of carbohydrate stored in your muscles and liver). Glycogen holds water, so when it’s depleted, you lose a lot of water weight. This makes the scale go down fast, but most of that isn’t fat loss. When you start eating normally again, that water weight usually comes back.

Real, lasting fat loss comes from maintaining a consistent calorie deficit over time, weeks and months, not days. No short-term broth-based plan can guarantee that once the diet ends.

What Bone Broth Can't Give You

This is the part often missed in the hype around the diet.

Bone broth can’t replace a balanced diet. It lacks fibre, which is important for digestion, blood sugar control, and feeling full. It also has very little healthy fat and doesn’t provide enough vitamins and minerals on its own.

On strict broth-only days, calorie intake can become too low, which may lead to fatigue, poor focus, and some loss of muscle along with fat. Losing muscle can make long-term weight maintenance harder.

It can also be high in sodium, especially store-bought versions, and having several cups a day may push salt intake too high, which isn’t ideal for blood pressure.

Safety: What You Need to Be Aware Of 

For most healthy adults, having bone broth as part of a balanced diet is generally safe. The problems usually come with the more extreme versions of the diet.

Multi-day broth fasts, where almost all solid food is removed for several days, are not nutritionally complete and shouldn’t be seen as harmless. They can cause side effects like headaches, tiredness, digestive issues, and reduced physical and mental performance.

Very restrictive diets can also affect your relationship with food, especially for people who already struggle with strict “all-or-nothing” eating patterns.

Who Should Think Carefully Before Trying It

Some people should avoid the more restrictive versions of this diet completely.

Pregnant and breastfeeding women need more calories and nutrients, so restricting food variety is not appropriate. People with kidney disease also need to be careful with protein and mineral intake, which can be affected by bone broth. Those with gout may need to avoid it, as bone-based foods can trigger symptoms due to purines.

Anyone with a history of eating disorders or who tends to fall into very restrictive eating patterns should be especially cautious. In these cases, it’s best to seek advice from a healthcare professional before trying this kind of diet.

What’s True and What’s Just Hype

There are also a few common ideas that come up with the bone broth diet that are worth looking at more closely.

1. “It detoxes your system.” In reality, your liver and kidneys already handle detoxification continuously and very effectively. There’s no solid evidence that bone broth boosts or speeds up this process. In most cases, “detox” claims in diets are more marketing language than science.
2. “It heals a leaky gut.” Bone broth does contain amino acids like glycine, glutamine, and proline, which are involved in supporting the gut lining. However, the evidence is still early and mostly comes from lab or animal studies. That’s not the same as proof that drinking bone broth can treat gut problems in humans. A balanced diet with plenty of fibre is still much better supported for overall digestive health.
3. “Collagen in broth improves your skin.” In reality, the collagen in bone broth is broken down during digestion into amino acids, just like any other protein. Your body then uses these building blocks wherever they’re needed most; you can’t direct them specifically to your skin. Because of this, claims that drinking bone broth directly improves skin appearance are not well supported by strong evidence.

What Works Best in the Long Term 

• If what you like about the bone broth diet is its structure and focus on whole foods, you can keep those ideas without the strict restrictions.
• A more balanced approach is simply eating regular meals that include protein, vegetables, whole grains, and healthy fats, while using bone broth as an extra, like a warm drink or soup base when you enjoy it.
• You can also try a gentle 12-hour overnight fast, which is easier to follow than full fasting days but still gives some structure.
• In the long run, the most effective eating patterns are the ones that are balanced, flexible, and sustainable, not extreme or short-term.

Final Thoughts

Bone broth is a nourishing, versatile food that can easily fit into a healthy diet. There’s nothing wrong with enjoying it regularly, in soups, as a warm drink, or as a cooking base.

But using it as the main focus of a whole diet is a different matter. The weight loss seen with bone broth diets mainly comes from eating fewer calories, not from any special effect of the broth itself. The more restrictive the plan, the harder it is to maintain, and the higher the risk of missing key nutrients.

If you like the idea of structure and simplicity, that’s a great starting point, but it doesn’t need to involve fasting or liquid-only days. Sustainable results come from balanced habits you can actually stick with long-term.

If you’re looking for more guided support, Nobese offers simple daily tips and practical tools to help you build healthier routines without extreme dieting. It’s designed to make better habits easier to follow, one step at a time.