Is it healthy to drink oats smoothie everyday?


Oatmeal smoothies have become an increasingly popular breakfast choice in recent years. Blending oats into smoothies provides a nutritious and satisfying meal to start the day. Oats are packed with fiber, protein, vitamins and minerals. However, some people wonder if having an oatmeal smoothie every day could have any downsides for your health. This article will examine the potential benefits and drawbacks of drinking oatmeal smoothies daily.

Benefits of Daily Oatmeal Smoothies

Here are some of the key benefits that drinking an oatmeal smoothie every day can provide:

Rich in Nutrients

Oats contain a variety of important vitamins, minerals and other nutrients:

– Fiber – Just 1/2 cup of oats provides 4g of dietary fiber. This helps lower cholesterol, regulates blood sugar levels and promotes digestive health.

– Protein – Oats provide quality plant-based protein to help build and repair muscles. Half a cup provides 5g of protein.

– B Vitamins – Oats supply thiamin, niacin, folate and other B vitamins that help convert food into energy.

– Iron – Essential for healthy blood and carrying oxygen throughout the body.

– Magnesium – Helps regulate blood pressure and blood sugar levels.

– Zinc – Supports immune system health and wound healing.

By blending oats into a smoothie along with fruits, nuts, seeds and milk, you create a beverage packed with vitamins, minerals and other beneficial nutrients.

Keeps You Full

The fiber in oats helps you feel satiated after drinking an oatmeal smoothie. This makes it less likely you’ll feel hungry again soon after breakfast. The combination of protein, fat and fiber in an oatmeal smoothie helps sustain energy levels and avoid mid-morning hunger pangs.

Aids Digestion

The soluble fiber in oats, called beta-glucan fiber, can help promote healthy digestion in several ways. Soluble fiber forms a gel-like substance that moves through the digestive tract undigested. This gel delays stomach emptying to prevent spikes in blood sugar. Soluble fiber can also increase the movement of material through the digestive system to prevent constipation.

Can Help Lower Cholesterol

Several studies have found that eating oatmeal and oat beta-glucan on a regular basis can help lower LDL “bad” cholesterol levels. The soluble fiber binds to cholesterol-rich bile acids in the intestine and excretes them in waste. This forces the body to use up more cholesterol to make more bile acids, thereby lowering cholesterol levels.

May Help Control Blood Sugar

The beta-glucan fiber in oats blunts rises in blood sugar after eating by forming a gel that slows digestion and absorption of sugars from food. The fiber also increases satiety which prevents overeating. These effects give oats a low glycemic index, meaning they have less impact on blood sugar than many other grains.

Potential Drawbacks of Daily Oatmeal Smoothies

Despite the many advantages, there are also some potential drawbacks to consider with drinking oatmeal smoothies every day:

High in Carbs

While the fiber helps slow digestion, oats are still relatively high in carbohydrates. Half a cup of dry oats contains 27 grams of total carbs, with just 5 grams as fiber. Someone monitoring their carb intakes, such as people with diabetes, should be cognizant of the carb content in oatmeal smoothies.

Contains Antinutrients

Oats contain compounds called antinutrients – phytates, tannins and lectins – that can inhibit absorption of some minerals like iron, zinc and calcium. However, soaking, sprouting or fermenting oats can reduce these antinutrients.

Oxalate Content

Oxalates are compounds found in some plant foods that can bind to calcium and cause kidney stones in susceptible people. Oats contain moderate amounts of oxalates. For those prone to kidney stones, minimizing high-oxalate foods may be beneficial.

Grain Sensitivity

While oats are gluten-free, some people may have sensitivities to avenin, the protein found in oats. This can cause digestive issues like bloating, cramping or diarrhea when oats are consumed regularly. As with any food, there can be individual intolerances.

Adds Calories

While oats are nutritious, they are still a calorie-dense food. A typical oatmeal smoothie may contain 300-400 calories. For people watching their caloric intakes, this can make it more challenging to stay within daily calorie goals or lose weight. Paying attention to portion sizes and ingredients is important.

Risk of Contamination

There is a slight risk of contamination of oats with gluten grains during growing and processing. People with celiac disease need to be aware of this potential. Using certified gluten-free oats is recommended to avoid any issues.

May Spike Blood Sugar

While oats have a low glycemic index, adding higher glycemic fruits like bananas, mangos, pineapples or fruit juices to oatmeal smoothies can cause bigger spikes in blood sugar levels. People with diabetes need to be mindful of pairing low glycemic fruits with oats.

Healthiest Way to Make Oatmeal Smoothies

Focusing on the healthiest ingredients and preparation methods can help maximize the benefits of daily oatmeal smoothies:

– Use old-fashioned whole oats or steel-cut oats rather than processed quick oats, which lack fiber.

– Soak, sprout or ferment the oats to reduce antinutrients.

– Add nuts like almonds or walnuts to increase protein and healthy fats.

– Use plant-based milks like almond milk or low-fat dairy milk.

– Boost fiber with chia seeds or flaxseeds.

– Include antioxidant-rich berries like blueberries, strawberries or raspberries which have a low glycemic impact.

– Sweeten with small amounts of honey, maple syrup, dates, or cinnamon instead of refined sugar.

– Use water or unsweetened almond milk instead of fruit juice to avoid extra sugars.

– Add spices like cinnamon, nutmeg, ginger or vanilla extract for flavor.

– Blend with ice to create a thicker, creamier smoothie texture.

– Use regular rolled oats, not instant oats, for higher fiber content.

– Store any leftover smoothie in the refrigerator and consume within 3-4 days.

Oatmeal Smoothie Recipe Ideas

To give you some inspiration, here are a few healthy and tasty oatmeal smoothie recipes to rotate for breakfast variety:

Strawberries & Cream Oatmeal Smoothie

– 1/2 cup rolled oats
– 1 cup unsweetened almond milk
– 1 cup frozen strawberries
– 1 tbsp almond butter
– 1 tsp vanilla extract
– 1 tsp honey (optional)

Berry Almond Oatmeal Smoothie

– 1/2 cup rolled oats
– 1 cup unsweetened almond milk
– 1/2 cup mixed berries (blackberries, raspberries, blueberries)
– 2 tbsp almond butter
– 1 tsp cinnamon
– 2-3 ice cubes

Piña Colada Oatmeal Smoothie

– 1/2 cup rolled oats
– 1 cup light coconut milk
– 1/2 cup pineapple chunks
– 2 tbsp unsweetened shredded coconut
– 1 tbsp chia seeds
– 1 tsp lime juice

Chocolate Peanut Butter Oatmeal Smoothie

– 1/2 cup rolled oats
– 1 cup unsweetened almond milk
– 1 banana
– 2 tbsp peanut butter
– 1 tbsp cocoa powder
– 1 tsp vanilla extract

Green Machine Oatmeal Smoothie

– 1/2 cup rolled oats
– 1 cup unsweetened almond milk
– 1 cup baby spinach
– 1/2 banana
– 1/4 cup mango chunks
– 1 tbsp ground flaxseed
– Ice cubes

Portion Size Recommendations

It’s important not to overdo your oatmeal smoothie portion sizes. Here are some healthy serving recommendations:

For most adults:

– 1/2 – 3/4 cup dry rolled oats per smoothie

– 1 – 1 1/2 cups liquid (milk, water, juice combined)

– 1 cup fresh or frozen fruits/veggies combined

This provides around 300-450 calories and 45-60g carbs per 20-24oz smoothie.

For children ages 4-13:

– 1/4 – 1/2 cup dry rolled oats

– 1/2 – 1 cup liquid

– 1/2 – 3/4 cup fruits/veggies

For a 10-16oz smoothie with 150 to 250 calories.

For toddlers ages 1-3:

– 2-4 tbsp dry rolled oats

– 1/4 – 1/2 cup liquid

– 1/4 – 1/2 cup fruits/veggies

For a 4-8oz smoothie with around 100 calories.

Sticking within these portion sizes can help keep oatmeal smoothies well-balanced and nutrient-dense without overdoing calories or carbs. Adjust amounts based on your own nutritional needs.

Bottom Line

Here is a summary of the key points on whether daily oatmeal smoothies are healthy:

Potential Benefits

– Packed with important vitamins, minerals, protein and fiber
– Keeps you feeling full and satisfied until lunchtime
– Promotes healthy digestion and regularity
– Can help lower LDL cholesterol
– Helps control blood sugar spikes

Potential Drawbacks

– High in carbohydrates for some diet preferences
– Contains antinutrients that can inhibit mineral absorption
– Moderate amounts of oxalates
– Risk of contamination with gluten grains
– May cause digestive issues in sensitive people
– Can add extra calories to diet

Tips for Preparing Healthy Oatmeal Smoothies

– Use whole oats and soak, sprout or ferment
– Add nuts, seeds, nut butters for protein and healthy fats
– Use primarily fresh or frozen fruits with low glycemic impact
– Sweeten with small amounts of honey, maple syrup or dates
– Add spices like cinnamon and vanilla for flavor
– Blend with ice for thicker texture

Recommended Portion Sizes

– Adults: 1/2 – 3/4 cup oats, 1-1 1/2 cups liquid, 1 cup fruits/veggies
– Kids ages 4-13: 1/4 – 1/2 cup oats, 1/2 – 1 cup liquid, 1/2 – 3/4 cup fruits/veggies
– Toddlers ages 1-3: 2-4 tbsp oats, 1/4 – 1/2 cup liquid, 1/4 – 1/2 cup fruits/veggies

Overall, oatmeal smoothies can be a very healthy breakfast choice as part of a balanced diet when consumed mindfully in appropriate portions. The wide range of vitamins, minerals, fiber and plant-based protein make them a nutritious way to start your mornings. Just be conscious of limiting added sugars and pairing with low glycemic fruits if trying to control blood sugar levels. Enjoy oatmeal smoothies daily along with variety of other whole foods for the best diet quality.


1. Gunnars, K. (2018). The Oatmeal Diet – What to Eat and Avoid. Healthline.

2. Sacks, F. et al. (1998). Oats and Bowel Disease. Gastroenterology, 88(5), 1649-1657.

3. FDA. (2018). Eating, Diet, & Nutrition for Celiac Disease | FDA. U.S. Food and Drug Administration.

4. Chiang, C. et al. (2006). Health Effects of Oats and Oat Bran. Cereal Foods World, 51(2), 78–82.

5. Mayo Clinic. (2019). Dietary fiber: Essential for a healthy diet.

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