Vitamin D deficiency gets a lot of attention as it is a crucial vitamin for optimal health – but there are micronutrient deficiencies to consider as well. It’s proven: 31 percent of people in the United States are at risk for a deficiency in at least one vitamin or mineral essential for good health. It may be hard to imagine that we don’t get enough nutrition when we see an abundance of food available 24/7, but it’s true. A recent study showed the top five nutrients many of us need more of.

Should you be concerned about being low in one or two vitamins or minerals? In a word, yes. That’s because vitamins and minerals are essential for optimal health. Being low may not cause immediate symptoms, but it puts you at risk for many serious diseases that can affect your brain, heart, blood, immune system, metabolism, bones, mental health, etc. 

Nutrients are key pieces your body needs to maintain all of your systems in good working order. Missing just one or two pieces can throw off the delicate balance you need to be healthy and feel great. That’s because most nutrients don’t have just one vital role to play within the body, they play many, many vital roles.

How would you even know if you’re at risk for a micronutrient deficiencies? It’s not always obvious. Sometimes symptoms aren’t felt for a long time and sometimes they’re very vague and non-specific. For example, fatigue, irritability, aches and pains, decreased immune function, and heart palpitations can be signs of many things, including a micronutrient deficiency. This article goes over the five most commonly deficient micronutrients, some of the more obvious symptoms, and foods that are high in each so you can get enough.

Vitamin B6 deficiency 

The number one most common micronutrient deficiency in the US was Vitamin B6. This vitamin is important for your blood, brain, and metabolism. Vitamin B6 helps the formation of hemoglobin in the blood (the part that carries oxygen around). It also helps to maintain normal levels of homocysteine (high levels of homocysteine are linked with heart disease). In addition, this vitamin plays an important role in the production of neurotransmitters (chemical messengers allowing nerve cells to communicate with each other). Not to mention the fact that it’s also involved with over 100 enzyme reactions in the body, mostly for metabolism. 

Some of the main symptoms of a serious deficiency in Vitamin B6 are depression, confusion, convulsions, and a type of anemia called “microcytic” anemia. Symptoms of a less serious deficiency are no less serious. They include increased risks for heart disease and Alzheimer’s. These wide-ranging health effects are why Vitamin B6 is so essential for health. 

Vitamin B6 is found in all food groups. People who eat high-fiber cereals tend to have higher levels of the vitamin because cereals are often fortified with it. Vitamin B6 is also found in high quantities in potatoes, non-citrus fruits (e.g., bananas), and various animal-based foods such as poultry, fish, and organ meats.

Try these simple, delicious Chicken Waldorf Salad Wraps. One serving =  1mg or 83% RDA for Vitamin B6


Chicken Waldorf Collard Wraps

  • Author: Jeanne Petrucci, MS, RDN
  • Prep Time: 15
  • Total Time: 15 minutes



4 collards, leaves, trimmed

10 oz. chicken breast, pre-cooked

1/2 cup grapes, quartered

1/4 cup mayonnaise, unsweetened

2 scallions, chopped

2 Tbs parsley, chopped

1/3 cup walnuts, raw, chopped

salt, to taste

black pepper, to taste

1/2 avocado, sliced



  1. Drain chicken and place in a large bowl.
  2. Chop scallions and walnuts.
  3. Remove stems of collards. Place each leaf on a flat surface and, using a sharp knife or vegetable peeler, shave off some of the spine to make it more flexible. Rinse in very hot water to soften and set aside.


  1. To the chicken, add mayonnaise and stir with a fork until the chicken is flaky. Season with salt and pepper and stir in scallions and walnuts.
  2. Add chicken mixture to collard leaves or other vehicle, top with some avocado, and wrap.


Canned chicken that has been drained works really well here. Otherwise, you can use leftover roasted chicken or pre- baked chicken breasts.


  • Serving Size: 2
  • Calories: 638
  • Sugar: 1
  • Sodium: 864
  • Fat: 51.6
  • Saturated Fat: 7.1
  • Carbohydrates: 9
  • Fiber: 5
  • Protein: 40
  • Cholesterol: 101

Keywords: micronutrient deficiencies

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Vitamin B12 deficiency

Like Vitamin B6, Vitamin B12 is also very important for your blood and brain. It is needed for the creation of healthy red blood cells and the formation of the outer coating of nerve cells (myelin) which is very important for their optimal functioning.

Vitamin B12 can be a bit difficult to absorb from your food. To improve absorption, it’s important to have adequate acid and digestive enzymes in the stomach. This is because the vitamin is very strongly bound to the proteins in food, and stomach acid and enzymes help to break those bonds and free the vitamin so your body can take it in.

Having a Vitamin B12 deficiency can be caused by a type of anemia called “pernicious” anemia. Pernicious anemia is an autoimmune disease that affects the stomach and reduces its ability to absorb Vitamin B12. A deficiency in Vitamin B12 can then lead to a different type of anemia called “megaloblastic” anemia. Low levels of Vitamin B12 can also cause neurological damage (due to impaired myelination of nerve cells). 

Vitamin B12 isn’t naturally present in most plant-based foods, except it is found in some nutritional yeast products. It is naturally found in dairy, eggs, fish, poultry and meat and is particularly high in clams, beef liver, trout, and salmon. Many breakfast cereals are fortified with Vitamin B12. 

If you are consuming Vitamin B12 supplements or eating foods that are fortified with Vitamin B12, your levels of stomach acid and digestive enzymes aren’t as critical as they are for the absorption of the vitamin directly from foods. This is because when adding Vitamin B12 to foods and supplements, it’s not tightly bound to their proteins and this makes it much more easily absorbed.

Vitamin C deficiency

Vitamin C is important for wound healing (via a protein called collagen), the production of neurotransmitters, metabolism, and the proper functioning of the immune system. Vitamin C also acts as an antioxidant to reduce the damage caused by free radicals that can worsen several diseases such as certain cancers and heart disease. Vitamin C also helps your body absorb the essential mineral iron, which is one of the top five micronutrient deficiencies also included in this article.

Collagen is a vital component of connective tissue and this describes some of the symptoms of its deficiency disease, scurvy. Symptoms of scurvy include weak connective tissue such as bleeding, wounds that won’t heal, and even the loss of teeth.

You can get Vitamin C from many fruits and vegetables. Ones particularly high in Vitamin C include bell peppers, oranges, and orange juice. Other good sources of the vitamin include kiwifruit, broccoli, strawberries, Brussels…

Vitamin D Deficiency

Vitamin D, also known as the “sunshine vitamin,” is very important for your bones. It promotes the absorption of the mineral calcium. When your body has enough calcium, it can maintain normal bone mineralization and prevent problems in the muscles that lead to cramps and spasms. Getting enough Vitamin D and calcium can also help protect against osteoporosis. In addition to all of these bone and muscle impacts, Vitamin D helps to reduce inflammation and modulate both immune function and sugar metabolism. 

Without enough Vitamin D bones can become thin, brittle, or misshapen. Vitamin D prevents these issues known as rickets (in children) and osteomalacia (in adults).

Your skin makes Vitamin D when it’s exposed to the ultraviolet rays of the sun and very few foods naturally contain it. The few Vitamin D-rich foods include fatty fish and fish liver oils (e.g., salmon, trout, cod liver oil). Other foods that naturally contain small amounts of Vitamin D include egg yolks, beef liver, and cheddar cheese. Some mushrooms can contain Vitamin D—particularly those exposed to UV light. 

Most of the dietary Vitamin D that people in the US get is from fortified foods and beverages. These include some dairy products (mainly milk), certain plant milks (e.g., soy, almond, or oat milks), various breakfast cereals, and a few types of orange juice. Be sure to look at the nutrition labels to see if and how much Vitamin D is in each serving of the food or beverage.

Iron Deficiency

Iron is a mineral essential for healthy blood so that it can transport vital oxygen throughout your body every second of every day. This happens via a compound in your red blood cells called “hemoglobin.” Iron also supports your muscles (like Vitamin D) and your connective tissue (like Vitamin C). Having adequate iron is necessary for physical growth, neurological development, hormone production, and the function of your cells. 

A deficiency in iron is commonly known as “anemia.” Menstruating women tend to be lower in iron simply because of their regular loss of blood.

Most iron in the body is in the blood, but there is some stored in the liver, spleen, bone marrow, and muscles. This is why iron deficiency progresses slowly from depleting your stores (mild iron deficiency), to reducing the number of red blood cells (marginal iron deficiency), before you get to full-out iron deficiency anemia.

Iron is naturally found in many foods in one of two forms: heme and non-heme. Animal-based foods contain the more absorbable heme form. Plant-based foods naturally contain non-heme iron. This is where Vitamin C comes in. Vitamin C helps your body absorb the non-heme iron from plants, which is why, if plants are a main source of iron in your diet, it’s important to combine iron-rich plants with Vitamin C-rich plants in the same meal.

Some of the best sources of iron include fortified cereals, oysters, white beans, dark chocolate, beef liver, lentils, spinach, and tofu.

Here is one of our favorite iron-rich plant-based meal plan recipes for Tofu Scramble. One Serving = 7mg or 40% RDA for iron.


Simple Tofu Scramble

  • Author: Jeanne Petrucci, MS, RDN
  • Prep Time: 20
  • Cook Time: 10
  • Total Time: 30 minutes



1 red bell pepper, diced

1/4 cup sweet onion, chopped

1 lb tofu, extra firm, drained and crumbled

4 cup spinach, chopped

1/2 cup basil leaves, chopped

2 tsp chili powder

1 tsp cumin, ground

1/2 tsp turmeric

hot sauce (optional)



  1. Dice pepper, chop onion and chop spinach.
  2. Drain and crumble tofu.


  1. In a bowl, add crumbled tofu, chili powder, cumin and turmeric and massage until spices are well incorporated. Set aside.
  2. Spray sauté pan lightly with oil add onions and peppers. Sauté until soft. Add tofu and sauté until warmed through, about 5 minutes.
  3. Add spinach and basil to pan and season with salt to taste.
  4. Top with hot sauce if desired.


Mix up the vegetables using different types of greens, herbs, and seasonal produce.


  • Serving Size: 2
  • Calories: 253
  • Sugar: 4
  • Sodium: 146
  • Fat: 12.1
  • Saturated Fat: 1.5
  • Carbohydrates: 12
  • Fiber: 5
  • Protein: 26
  • Cholesterol: 0

Keywords: micronutrient deficiencies

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Final thoughts on micronutrient deficiencies

Up to one-third of people in the US are at risk for at least one micronutrient deficiency. Most commonly, that deficient micronutrient is Vitamin B6, but there are also many people deficient in vitamins B12, C, and D, as well as the mineral iron. Vitamins and minerals are considered micronutrients and are essential because everybody needs them on a regular basis for good health. Lacking in any one micronutrient can have far-reaching consequences.

Eating a nutrient-rich diet with a variety of foods can help everyone achieve their health and nutrition goals.

To know if you’re at risk for a micronutrient deficiencies, consult your nutrition professional who can review your food intake and supplements. 

Need a personalized meal plan with access to recipes to help meet your micronutrient intake?  Reach out here and we’ll connect you with someone who can support you with meeting your health goals.