Is It Safe To Take Chlorella While Pregnant?

 by Dr. Steve Hruby
Reviewed by Dr. Steve Hruby

I am a chiropractor, father, husband, coach, entrepreneur, and motivational speaker. Feeling good about yourself is a choice: My mission is to transform lives through optimized health and overall well-being.

  Fact Checked
 by Rhealyn Tropia, RMT
Reviewed by Rhealyn Tropia, RMT

I’ve been called a Data Ninja, The Fact Checker, and a Human Search Engine. I’m an indie content curator who does research daily, and quizzes myself on the important issues of the day.

Is It Safe To Take Chlorella While Pregnant

Did you know that only a quarter of the 86% of American adults on supplements need them? The supplement industry is booming, with new products popping up every time. With so many supplements on the market, it can be hard to know which ones are worth taking.

One supplement gaining much popularity is chlorella. This green alga accommodates many nutrients, including vitamins, minerals, and antioxidants. Many adore chlorella for its health benefits, like boosting immunity or improving digestion.

But can you take chlorella while pregnant?

No scientific evidence suggests that chlorella is unsafe for pregnant women. Chlorella may even offer some advantages for pregnant women, like iron deficiency prevention.

However, it is always best to speak with a healthcare provider before starting any supplement, especially during pregnancy. Pregnancy is a delicate time, and anything ingested can affect the developing baby.

Chlorella Safety During Pregnancy

There is little done to check the safety of chlorella during pregnancy. No studies indicate a direct relationship between pregnancy and any harm outside the usual. Like anyone else, mothers may experience chlorella side effects often due to intolerance or overdose.

As a result, there’s a high likelihood that chlorella may be a great supplement to take during pregnancy. It is full of nutrients that are beneficial for both the mother and the baby. 

One study of 70 pregnant ladies noted that those that used Chlorella pyrenoidosa had reduced proteinuria and edema contracting risk. Furthermore, they were less likely to get anaemia.

Another study of 32 pregnant women at 12–18 weeks found that chlorella supplementation increased vitamin D and B12. It also helped improve antioxidative activity, immunomodulation, and effects against hypertension, diabetes, and hyperlipidemia.

A third study in mice found that chlorella reduces the placental transfer of heavy metals like mercury from mothers to babies.

Chlorella’s Benefits For Pregnant Women

Pregnant women need more nutrients than the average person, making chlorella a potentially beneficial supplement.

Chlorella is a particularly good source of iron essential for pregnant women to prevent iron deficiency anaemia. 

Chlorella is also rich in vitamins A and B12. You can get up to 300% of your daily requirement of vitamin A from chlorella.

pregnant woman drinking from cup

Chlorella may help to reduce swelling and edema, as well as detoxify the body.

Some studies show that chlorella may help to lower blood pressure. Hence, it is a potentially valuable supplement for women at risk of pregnancy-induced hypertension.

Chlorella may also help to regulate blood sugar levels and lower cholesterol. Additionally, the antioxidant properties of chlorella may help to fight free radicals.

Finally, chlorella may help to support respiratory health and improve aerobic endurance.

Dangers of Taking Chlorella While Pregnant

Like any other user, chlorella supplements may lead to side effects in the expectant. The likelihood of chlorella dangers rises with overindulgence and predisposition to certain conditions.

The most typical chlorella side effects include GI complications, like nausea, puking, bloat, and diarrhea. Some may experience fatigue and headaches.

People with weakened immune systems may risk developing infections from chlorella supplements. There is also some concern that chlorella may interact with certain medications, like blood thinners and immunosuppressant medications.

For instance, vitamin K may lower warfarin’s effectiveness. However, since warfarin is unsuitable when pregnant, this interaction won’t happen.

Overall, there are no known dangers of taking chlorella affecting pregnancy. However, speaking to your doctor before taking any supplements is always best.

Different Chlorella Forms

You can find chlorella tablets, powders, extracts, and capsules. The extract is the least popular but just as beneficial.

Before picking, consider the ups and demerits of chlorella powder vs tablets vs extract vs capsule. Capsules and tablets are the simplest to carry and take. However, powder and extract provide more versatility as you can add them to various meals and beverages.

Here is the best chlorella supplement for detox and other benefits under each available form:

  • Capsule: Fresh Healthcare Chlorella Capsule
  • Tablet: Micro Ingredients Organic Chlorella Tablets
  • Powder: Micro Ingredients Organic Chlorella Powder
  • Extract: Secrets of the Tribe Chlorella Tincture Extract

Whichever form you choose, always ask your OB-GYN whether it suits you.

What About Nursing Moms?

Though chlorella may taint milk green, there is no evidence proclaiming adverse effects on lactating babies or mums.

breastfeeding mom

However, a previous study suggested it may lower breast milk dioxins by 30%. The lesser these toxins are in milk, the safer the baby.

Nutritional demands tend to peak during pregnancy. For instance, while a normal adult requires 150 mcg of iodine, lactating mums need up to 290 mcg. Under-one-year babies also have higher iodine demands (130 mcg) than 1-5-year-olds (90 mcg).

Chlorella assists mothers in supplementing their diets and meeting their mineral needs. Still, confirm with your doctor whether you can use chlorella while breastfeeding.

Can Chlorella Help With Conception?

Save for one study on birds; there is no evidence that chlorella can help with conception. In birds, its antioxidative properties may slacken ova oxidation, booting fertilization chances. However, these advantages may not extend to women.

Is Chlorophyll Ok While Pregnant?

There is inadequate research to verify that chlorophyll is ok while pregnant. Still, it supplies many advantages and causes many side effects similar to chlorella. Users may experience nausea, rashes, stomach upsets, and puking.

Chlorophyll also interacts with some meds, so ask your OB-GYN whether it’s okay to use it.

Who Should Not Take Chlorella?

Those with allergies or reactivity to its components like iodine should not take chlorella. If you are using immunosuppressants or thinning your blood, chlorella is an unwise choice. It may interact with these two medication types.


Chlorella thrives in chlorophyll, thought to be responsible for many of its health benefits. These benefits include detoxification, improved digestion, and enhanced immunity. 

It may help with iron deficiency, edema, proteinuria, and inflammation. It also helps replenish other nutrients for overall good health.

The superfood is generally considered safe for most people. However, there is limited research on its safety during pregnancy. Therefore, it is best to consult a healthcare provider to assess if you can consume chlorella while pregnant.

Are you fit and ready to supplement with this superfood? Grab the Sunlit BodyBrite Superfood Powder at reasonable prices! And also check out the best organic chlorella powder.

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