The Calorie Breakdown: A Look at the Labels
The most straightforward answer to how many calories in a 2 chicken stock cube is that it's generally a very low number, typically ranging from 20 to 60 calories, but this can vary dramatically by brand. For instance, some generic brands report around 9 calories per cube, putting the total for two at just 18 kcal. However, other popular brands, such as Knorr in the U.S., may contain 15-30 calories per cube, meaning two could have up to 60 calories. The low-calorie nature of stock cubes is often a main selling point, but this simplicity hides a more complex nutritional story that deserves closer attention for anyone focused on their diet and overall health.
The calories in these products are derived from a combination of ingredients, including dehydrated chicken broth, fat, and starches. The small amounts of protein and carbohydrates also contribute to the final calorie count. For most recipes, the calorie contribution from a couple of stock cubes is negligible when spread across multiple servings. The true nutritional concern lies not in the energy provided, but in the additives and high levels of sodium used to achieve a concentrated flavour profile.
The Primary Nutritional Concern: Sky-High Sodium
The most significant nutritional aspect of chicken stock cubes is their extremely high sodium content. A single cube can pack nearly 1,000mg of sodium. Considering health organizations like the World Health Organization (WHO) and the American Heart Association recommend a maximum daily intake of 2,000mg and 2,300mg, respectively, using just two stock cubes could provide a substantial portion of your daily allowance. For individuals with high blood pressure or other cardiovascular concerns, this can be particularly problematic.
Sodium is a key ingredient in stock cubes because it acts as a preservative and intensifies flavour. However, excessive sodium intake is directly linked to increased blood pressure, which elevates the risk of heart disease, stroke, and kidney disease. Many people don't realize how much salt is in processed foods, and stock cubes are a prime example of a hidden sodium source. This heavy reliance on salt also means the cubes may contain fewer genuine flavour-building ingredients, leading to a one-dimensional taste compared to homemade stock.
Ingredients Beyond the Basics: Additives and Fats
Beyond sodium, many commercial stock cubes contain a range of additives. Common ingredients include:
- Flavor enhancers: Monosodium glutamate (MSG) and disodium inosinate are frequently used to amplify the savoury, umami flavour. While the Food and Drug Administration (FDA) deems MSG safe for consumption, some individuals report sensitivities.
 - Fats: Chicken fat or hydrogenated fats are used to add richness and mouthfeel. These can contain trans fats, which are associated with higher risks of heart disease and increased LDL ('bad') cholesterol.
 - Preservatives and fillers: Ingredients like yeast extract, sugar, maltodextrin, and wheat flour are common. These help stabilize the product and enhance its flavour or texture, but add little to no nutritional benefit.
 
The Health Implications of Processed Stock
The health risks associated with the high sodium and processed nature of stock cubes are well-documented. For those with or at risk of hypertension, even small, regular additions of high-sodium stock cubes can have a cumulative negative effect. The lack of significant vitamins, minerals, and other nutrients means stock cubes offer little more than salt and flavour enhancers, making them a poor choice for genuine nutritional enrichment. For individuals with a focus on whole foods and minimizing processed ingredients, stock cubes are often a target for reduction.
Comparing Commercial Stock Cubes to Homemade Stock
| Feature | Commercial Stock Cubes | Homemade Chicken Stock | 
|---|---|---|
| Calories (per 2 cubes/approx. 480ml) | 20-60 kcal | Approx. 30-80 kcal (depending on ingredients) | 
| Sodium | 1,000–2,000+ mg | Highly variable, often 50mg or less without added salt | 
| Nutritional Value | Minimal vitamins, minerals | Collagen, gelatin, amino acids | 
| Ingredients | Salt, fat, MSG, yeast extract, flavourings, fillers | Chicken bones, meat, vegetables, herbs | 
| Flavor Profile | Intense, salty, one-dimensional | Rich, complex, savoury, and nuanced | 
| Health Impact | High sodium risk, processed fats | Promotes gut health, strengthens joints, low sodium | 
The Superior Alternative: Homemade Chicken Stock
Making your own chicken stock from scratch offers a far superior, healthier, and more flavourful alternative to stock cubes. By controlling the ingredients, you can significantly reduce the sodium content and avoid artificial additives entirely. The process involves simmering chicken bones with a mirepoix of vegetables (onions, carrots, celery) and herbs for an extended period. The resulting liquid contains beneficial collagen and gelatin, which are excellent for gut health, joint strength, and skin.
How to Make Your Own Low-Sodium Stock
Here’s a simple process for making a batch of nutrient-dense, low-sodium chicken stock:
- Ingredients: 1 rotisserie chicken carcass or 2-3 pounds of chicken bones, 1 onion (quartered), 2 carrots (chopped), 2 celery stalks (chopped), 1 head of garlic (halved), a few sprigs of fresh parsley, thyme, and a bay leaf. No salt needed.
 - Method:
- Place all ingredients in a large pot.
 - Cover with water until everything is submerged.
 - Bring to a boil, then reduce heat and simmer gently for 2-4 hours.
 - Strain the liquid, discarding the solids.
 - Allow to cool completely before refrigerating. The fat will rise to the top and solidify, making it easy to skim off. The remaining liquid will be a gel-like consistency due to the beneficial collagen.
 - Store in glass containers in the fridge or pour into ice cube trays for easy freezing. These can be used just like stock cubes but with a fraction of the salt.
 
 
Choosing Healthier Options: What to Look For
If making homemade stock isn't feasible, informed purchasing decisions can mitigate the downsides of commercial products. When shopping for store-bought stock or stock cubes, look for the following on the nutrition label:
- “Low-sodium” or “zero-salt” versions: Several brands now offer low-sodium varieties. Always check the specific sodium content, as 'low-sodium' can still be high. Knorr Zero Salt Chicken Stock Cubes are one such example.
 - Clean ingredient list: Opt for products with shorter ingredient lists that use natural flavorings and avoid hydrogenated oils, MSG, and excessive fillers.
 - Check the serving size: Nutrition information can be based on a smaller-than-expected serving, so always check the details to calculate the total amount of sodium you are adding to your dish.
 
The Takeaway for Your Nutrition Diet
While the calorie content of chicken stock cubes is minimal, their high sodium load poses a significant nutritional concern, particularly for those managing blood pressure. The added flavour enhancers and fats in many commercial brands further highlight their processed nature. For a truly healthy and wholesome diet, homemade stock is the undisputed champion, providing a richer, more complex flavour profile with controlled sodium and beneficial nutrients like collagen. Whether you make your own or opt for low-sodium store-bought versions, paying close attention to labels is the most important step in managing your intake for better long-term health. For more on managing sodium intake, consult official health guidelines.
Key Takeaways
- Low Calories, High Sodium: Chicken stock cubes are low in calories (18-60 kcal for 2 cubes), but their extremely high sodium content is the main nutritional concern.
 - Brand Variations: Calorie and sodium content vary significantly across brands, making it crucial to check the specific nutrition label for each product.
 - High Sodium Risks: Excessive sodium intake from processed foods like stock cubes is linked to increased blood pressure, heart disease, stroke, and kidney issues.
 - Beneficial Homemade Stock: Making your own stock at home provides superior flavour, enables complete sodium control, and delivers beneficial nutrients like collagen and gelatin.
 - Hidden Additives: Many commercial cubes contain flavour enhancers like MSG, along with preservatives and potentially unhealthy fats, which can be avoided with homemade alternatives.
 - Look for Alternatives: For convenience, choose low-sodium or zero-salt stock cube versions and scrutinize ingredient lists to avoid unhealthy additives.
 
FAQs
Q: Are chicken stock cubes unhealthy? A: While they are low in calories, stock cubes are often unhealthy due to their very high sodium content and can contain artificial flavour enhancers and hydrogenated fats.
Q: Can I use stock cubes if I have high blood pressure? A: You should opt for specifically marked low-sodium or zero-salt stock cubes, as standard versions contain extremely high levels of sodium that are detrimental to managing blood pressure.
Q: Is there a significant difference in taste between homemade stock and a stock cube? A: Yes. Homemade stock offers a richer, more complex, and natural flavour profile. Stock cubes tend to have a one-dimensional, intensely salty flavour from additives.
Q: Do chicken stock cubes contain any beneficial nutrients? A: No, most commercial stock cubes contain minimal nutritional value, with the dehydration process and high salt content stripping most beneficial vitamins and minerals. Homemade stock, however, contains beneficial collagen.
Q: What is the benefit of making your own stock cubes? A: By making your own stock and freezing it in cubes, you get a preservative-free, low-sodium option with all the flavour and nutritional benefits of a homemade broth.
Q: What are MSG and other flavor enhancers in stock cubes? A: MSG (monosodium glutamate) and disodium inosinate are additives used to amplify the savoury taste. While FDA-approved, they are processed ingredients that some people prefer to avoid.
Q: How can I season my food without stock cubes? A: You can use herbs, spices, homemade stock, low-sodium soy sauce, or other natural flavourings like nutritional yeast to add depth and flavour to your dishes without relying on high-sodium stock cubes.