Nutrition
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September 13, 2024

Brown Rice or White Rice: Which is Better for Your Diet?

Medically Reviewed by
Updated On
September 20, 2024

Rice is a dietary cornerstone for more than 3.5 billion people worldwide, contributing to approximately 20% of the global calorie intake (8). With over 8,000 varieties available, rice comes in many sizes, colors, and nutritional profiles. Among these, brown and white rice are two of the most commonly consumed types, each offering distinct health benefits.

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Overview of Brown Rice and White Rice

Before describing the differences between brown and white rice, it's helpful to understand the anatomy of a rice grain: 

  • The outermost layer is the husk or hull, which is inedible and must be removed before consumption. 
  • Beneath the hull lies the bran layer, a rich source of oils, vitamins, minerals, antioxidants, and protein. 
  • The next layer is the germ, the embryo of the seed, which functions as the reproductive part of the grain and contains essential nutrients that support the growth of a new plant.
  • The innermost part is the endosperm, which comprises the bulk of the grain and primarily consists of starchy carbohydrates and protein. 
anatomy of rice inside

Brown rice, named for its color, is considered a whole grain because it undergoes minimal processing and retains all three main components of the grain: the bran, germ, and endosperm (18). Germinated, or sprouted, brown rice has undergone germination to enhance the bioavailability of the rice's nutritional elements, particularly GABA, lysine, magnesium, potassium, zinc, and B vitamins.

White rice, on the other hand, is a refined grain that has undergone a milling process to remove the bran and germ, leaving only the starchy endosperm. This process strips away much of the grain's nutritional value. (18

Nutritional Differences

Brown rice is more nutrient-dense than white rice because it retains the bran and germ layers rich in fiber, vitamins, minerals, and fatty acids. These components are lost during the milling process that converts brown to white rice.

According to the United States Department of Agriculture, one cup of cooked, medium-grain white rice contains: 

  • Calories: 242 kcal
  • Protein: 4.43 g
  • Fat: 0.391 g
  • Carbohydrate: 53.2 g
  • Fiber: 0.558 g

In comparison, one cup of cooked, long-grain brown rice contains:

  • Calories: 248 kcal
  • Protein: 5.54 g
  • Fat: 1.96 g
  • Carbohydrate: 51.7 g
  • Fiber: 3.23 g

The nutritional composition of brown rice includes dietary fiber, vitamins, minerals, lipids (fats), antioxidants (including phenolic acids, flavonoids, and anthocyanins), amino acids, and phytosterols. Many of these nutrients are lost when the bran and germ are removed during the milling process to make white rice. Although manufacturers often enrich white rice with nutrients like iron and B vitamins, its nutritional value is still lacking compared to its unrefined brown rice counterpart. (8

The table below highlights the nutritional differences between one cup of brown and enriched white rice: 

Sources: (29, 30)

Health Benefits and Considerations

Individual dietary needs and preferences should be considered when choosing between brown and white rice. 

One of the primary health benefits of brown rice is its higher fiber content compared to white rice. Fiber is essential for digestive health, as it helps regulate bowel movements, promotes satiety (feeling of fullness), and can contribute to lower blood sugar and cholesterol levels. 

The bran layer in brown rice also contains antioxidants, which reduce inflammation, protect cells from oxidative damage, and have potential health-promoting effects on the cardiovascular, immune, skin, and nervous systems.

Antinutrients are plant compounds that can interfere with the absorption of nutrients or cause digestive discomfort in some individuals. One well-known antinutrient found in brown rice is phytic acid (phytate), the storage form of phosphorus. It binds to minerals, such as iron, magnesium, and zinc, forming complexes rendering these nutrients less bioavailable to the human body. Soaking brown rice before cooking can reduce the phytic acid content in brown rice. Alternatively, eating white rice may be preferred to avoid this phytonutrient, as the milling process removes the bran layer, where phytic acid is highly concentrated. 

The glycemic index (GI) is a measure that ranks foods on a scale from 0 to 100 based on how quickly and how much they raise blood glucose levels after consumption. The GI scale is often emphasized in meal planning for blood sugar control. Foods with a high GI are rapidly digested and absorbed, causing a quick and significant rise in blood sugar. In contrast, foods with a low GI are digested and absorbed more slowly, resulting in a lower and more gradual increase in blood sugar levels. The GI of white rice is 70, which classifies it as a high-GI food, whereas the GI of brown rice is 50, which is considered low-GI. 

Who May Prefer Brown Rice

1. People Trying to Reduce Inflammation: Chronic inflammation drives disease. Anti-inflammatory diets focus on foods that can prevent and reverse inflammation. Whole grains like brown rice are preferred over processed and refined grains in an anti-inflammatory diet because of their phytonutrient, vitamin, mineral, and fiber content. 

2. People With Diabetes: Carbohydrate intake directly influences blood sugar levels and is a primary dietary consideration for people with diabetes. Low-GI foods are more effective than high-GI foods in controlling fasting blood sugar and hemoglobin A1c levels, important biomarkers tracked in diabetes management. The fiber in brown rice's bran layer slows down carbohydrate digestion and absorption, stabilizing blood sugar levels and promoting satiety. Additionally, vitamins and minerals in brown rice, such as B vitamins and magnesium, support glucose metabolism and enhance insulin sensitivity. (13

3. People With High Cholesterol: The fiber and sterols in brown rice can lower cholesterol. Fiber binds cholesterol in the digestive tract, preventing its reabsorption into circulation and promoting the elimination of excess cholesterol from the body. Due to their structural similarity to cholesterol, plant sterols compete with cholesterol for absorption in the intestines. This competition reduces cholesterol absorption into the bloodstream, lowering overall cholesterol levels.

Who May Prefer White Rice

1. People Requiring a Low-Fiber Diet: It is recommended that some people follow a low-fiber diet to prevent exacerbating certain gastrointestinal conditions, such as bowel obstruction, acute gastroenteritis, inflammatory bowel disease flares, and diverticulitis

2. Athletes With High-Energy Needs: Carbohydrates are the body's primary energy source because they are broken down into glucose, which cells use to generate ATP, the cellular currency for energy. Simple carbohydrates, like those in white rice, provide quick energy as they are rapidly digested. Insufficient carbohydrate intake in athletes can lead to poor endurance, reduced energy levels, and decreased muscle strength.

3. People Avoiding Heavy Metal Exposure: Arsenic is a heavy metal that has been linked to cancer, skin lesions, cardiovascular disease, and diabetes. Arsenic concentrates in the bran and germ layers of rice. Because milling removes these outer layers, white rice has been found to contain 80% less arsenic than brown rice. Exposure to arsenic in utero has been associated with increased mortality in young adults, making white rice a potentially safer choice for pregnant individuals compared to brown rice. (2)

Practical Considerations

Factors such as cooking time, taste preferences, cost, and accessibility may play into the choice between brown and white rice. 

Brown rice typically requires a longer cooking time (40-50 minutes) than white rice (15-20 minutes) due to its intact bran and germ layers. This can be a significant factor for those with limited time for meal preparation. 

Additionally, brown rice's taste and texture differ from white rice; brown rice has a nuttier flavor and chewier texture, which some, but not all individuals, prefer. These differences in taste and texture can influence personal dietary choices.

From a cost and accessibility perspective, brown rice is often slightly more expensive and has a shorter shelf life than white rice. White rice will store well for up to ten years, while brown rice has a shelf life of about six months. Keeping brown rice in an air-tight container and refrigerating it can prolong its shelf life. 

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Key Takeaways

  • Rice is a staple of many diets. 
  • In general, brown rice is more nutrient-dense and may be preferred for managing blood sugar, cholesterol, and satiety due to its higher fiber, vitamin, and mineral content. However, individuals with certain digestive issues, fitness goals, or looking to limit arsenic exposure may benefit from eating white rice.
  • Overall, both types of rice can be incorporated into a healthy diet when consumed in moderation.
The information provided is not intended to be a substitute for professional medical advice. Always consult with your doctor or other qualified healthcare provider before taking any dietary supplement or making any changes to your diet or exercise routine.

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