The Licorice and Iron Confusion: Candy vs. Root
Understanding the iron content of licorice requires differentiating between two distinct products: the natural licorice root (Glycyrrhiza glabra) and the processed licorice candy sold in stores. Many of the online claims suggesting licorice is a good source of iron are likely referring to certain types of confectionery, not the medicinal root itself. This is a critical distinction, as their nutritional profiles and health impacts are vastly different.
Why Some Licorice Candy May Contain Iron
Commercially produced black licorice candy often derives its distinctive flavor and dark color from added ingredients like molasses, a byproduct of sugar refining. Molasses naturally contains a notable amount of iron, and its presence can explain why some licorice candy products are cited as containing the mineral. For instance, some sources report that 50 grams of licorice sweets could contain around 4.4 mg of iron, largely attributed to molasses. However, this is not a reliable or healthy way to increase iron intake. The iron content will vary greatly depending on the recipe and ingredients used by different manufacturers. Moreover, the high sugar content makes relying on licorice candy for iron a very poor nutritional strategy.
The Minimal Iron in Real Licorice Root
In stark contrast to the candy, the nutritional facts for pure, dried licorice root or its extract show a negligible amount of iron. While the root is prized for its medicinal properties, such as antioxidant, anti-inflammatory, and antimicrobial effects, these benefits are linked to other active compounds, most notably glycyrrhizin. Glycyrrhizin, not iron, is the primary chemical of interest in the raw root. Some nutritional databases confirm that standardized licorice candy contains very little to no iron, reinforcing that any reported iron in candy is from added ingredients.
Health Implications of Licorice Consumption
While licorice root offers a range of potential health benefits, it's essential to be aware of the side effects, especially with long-term or high-dose consumption. The active compound, glycyrrhizin, is known to interfere with hormone regulation and can lead to a condition called pseudohyperaldosteronism, causing serious side effects such as:
- Hypertension (high blood pressure)
- Hypokalemia (low potassium levels)
- Edema (swelling)
- Cardiac arrhythmia
For this reason, many health-conscious products and supplements use deglycyrrhizinated licorice (DGL), which has had the glycyrrhizin removed, reducing the risk of these adverse effects.
Better Dietary Sources of Iron
For those looking to increase their iron intake, focusing on proven, nutrient-dense foods is the most effective and safest approach. Here is a list of excellent sources:
- Heme Iron Sources (from animal products):
- Lean red meat, such as steak and lamb
- Seafood, including mussels, oysters, and tuna
- Poultry
 
- Non-Heme Iron Sources (from plants):
- Lentils, beans, and other legumes
- Leafy greens, like cooked spinach and curly kale
- Tofu
- Nuts, such as pistachios and cashews
- Dried fruits, including apricots
- Fortified cereals, like WeetBix in Australia
 
Licorice vs. Iron-Rich Foods: A Comparison
To highlight the difference between relying on licorice versus reliable sources for iron, consider this comparison table. The values for licorice candy are approximations and can vary widely, while the values for natural foods are more consistent. The iron from animal sources (heme iron) is also more readily absorbed by the body than non-heme iron from plant sources.
| Food Item | Approximate Iron Content | Notes | 
|---|---|---|
| Licorice Candy (50g) | ~4.4 mg (variable) | Iron likely from added molasses; high sugar content. | 
| Dried Licorice Root (5g) | ~0.02 mg | Negligible iron; medicinal benefits unrelated to iron. | 
| Beef Steak (150g) | ~5.55 mg | Excellent source of easily absorbed heme iron. | 
| Cooked Spinach (1 cup) | ~2.2 mg | Non-heme iron; absorption can be boosted with Vitamin C. | 
| Lentils (1 cup, cooked) | ~6.6 mg | A great plant-based source of non-heme iron. | 
| Mussels (20 small) | ~15 mg | An exceptionally rich source of heme iron. | 
Conclusion: Separating the Candy from the Root
In conclusion, while certain licorice candies might contain some iron due to additives like molasses, licorice root itself is not a significant source of this vital mineral. Relying on candy for nutritional purposes is ill-advised due to its high sugar content and the variable nature of its ingredients. For a reliable and healthy intake of iron, it is best to incorporate established iron-rich foods, such as red meat, seafood, legumes, and leafy greens, into your diet. For those interested in the medicinal properties of licorice root, remember to consult a healthcare professional, especially concerning long-term use and potential side effects related to glycyrrhizin.
Authoritative Link to a resource like Healthline provides more context on licorice root's broader health aspects.