Grains are a staple in today's modern diet, despite their subpar nutritional status. Wheat and corn are the most consumed grains in the world, and subsidization of these food products have made them almost impossible to avoid. Corn and wheat are often genetically modified, a practice that presents its own concerns, and they're also inflammatory. Fortunately, there are a number of alternative grains that do provide a higher level of nutritional quality.
Top 6 Grain Alternatives
Here are a few alternative grains you should give a try. Note that these grains do not contain gluten, a hard-to-digest protein that interferes with thyroid health.
Considered a seed by most botanists, quinoa is quickly becoming one of the most popular alternative grains in the United States. This ancient food, heralded by the Incas, contains all essential amino acids and is a complete protein.  It's high in fiber (much more so than rice and wheat), and is gluten free. Quinoa can be used to replace rice or steel-cut oats.
A staple in diets for thousands of years, millet is considered a quality alternative grain that rivals wheat, rice, and oats. Millet has a low impact on blood sugar compared with other grains,  and some research has shown that the grain may be helpful for supporting ocular health. Millet can be cooked in a similar manner as rice and oats and can be used to substitute these grains in a variety of dishes.
3. Brown Rice
Rice, while not being the most nutritious food on the planet, does have its place in the lives of millions of people. White rice is the processed form of brown rice, stripped of its fiber and antioxidants. Brown rice, on the other hand, maintains its natural form, containing the bran, germ, and endosperm. This unprocessed form of brown rice leaves its fiber intact, slowing the impact the carbohydrates has on blood sugar.
Despite its name, buckwheat is not related to wheat in any way. Therefore, it doesn't contain gluten and is safe for individuals with celiac disease. Buckwheat is similar to quinoa, yet buckwheat's seeds are much larger and softer in texture. Similar to quinoa, buckwheat also contains all essential amino acids. It can be used as a substitute for rice, oats, and flour if ground into a fine powder. It's high in fiber and contains a high level of bioavailable antioxidants. One study showed that buckwheat prevents the elevation of dangerous triglycerides in the blood, possibly fighting cardiovascular disease. 
Amaranth has been cultivated for over 8,000 years and was a staple in the diet of the Aztec civilization. The grain contains a high level of lysine, an amino acid that is lacking in wheat. Therefore, amaranth is seen as a popular complementary protein to common grains, helping vegetarians and vegans receive all essential amino acids. Research shows that amaranth may benefit cardiovascular …read more
Source: The Best 6 Alternative Grains