No adverse effects have been reported with using Moringa leaves. Neither human nor animal studies have enough data to prove their toxicity (25).

Laboratory experiments on rats concluded that doses of up to 2000 mg/kg of moringa leaves were safe. A human study was conducted with whole leaf powder at a dose of 8 g per day for 40 days. No toxicity or side effects were observed in this study (25).

Moringa leaf powder is generally safe. But some people experience side effects from consuming it. It's important to monitor how much Moringa you consume. Researchers have found that too much Moringa can cause digestive complications like diarrhea. Taking a high dose of 70 grams or more of Moringa can put you at risk for toxicity.15

Be mindful of the foods and medications you take while consuming the Moringa plant. Drugs you may want to avoid while ingesting it include:6

· Antidiabetic drugs

· Cytochrome P450 3A4 substrates, drugs used to treat HIV

· Levoxyl (levothyroxine) to treat hypothyroidism (underactive thyroid)

· Viramune (nevirapine) to treat HIV

· P-glycoprotein substrates, drugs used to treat heart conditions. These include arrhythmia and angina, as well as HIV

Taking Moringa as a supplement or powder may also be unsafe for people who are pregnant. Some research shows that Moringa helps with milk production. But there is not enough research to confirm its effectiveness.16

People with hypothyroidism should also use caution. Moringa may reduce thyroid hormone levels.6

People on blood thinners should also avoid Moringa unless you consult your doctor first.

As with all things, when taken in moderation it can be safe for most people, so always use it with caution.