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Do melatonin supplements reduce the body's own production of melatonin?

Find out if taking melatonin supplements can decrease the body's own natural production of melatonin (endogenous melatonin), plus other factors that can decrease melatonin levels. ConsumerLabcom's answer explains.

Effects of melatonin supplements on the body's own production of melatonin -- melatonin capsules, glass of water, eye mask

What are the health benefits of black cumin seed (black seed) oil?

Find out if black seed oil has health benefits, such as lowering blood pressure or cholesterol, asthma, weight loss, and others. Dosage, forms, including black seed oil and black seed powder, safety information, using black seed oil in foods and more. ConsumerLab.com's answer explains.

Black seed oil benefits -- bowl of black cumin seeds and bottle of oil

Is it true that I need to drink more water or increase calcium intake when supplementing with protein powder?

Find out if protein supplements, powders and shakes can cause dehydration or bone loss, and whether you need to drink more water or increase your calcium intake when taking protein supplements. ConsumerLab.com's answer explains.

Which supplements and foods help relieve constipation and which can cause constipation?

Find out which supplements can cause constipation, including iron, calcium, protein powders and drinks and others. ConsumerLab.com's answer explains.

Which supplements can cause constipation? -- Woman with gastrointestinal pain

What are the symptoms of B12 deficiency?

B12 deficiency symptoms include fatigue, depression, numbness and tingling in the legs, loss of balance, changes in skin and hair, and others. Find out who is a greater risk for B12 deficiency, and how B12 supplements can help. ConsumerLab.com's answer explains.

Symptoms of B12 Deficiency -- paper with question "Are you getting enough vitamin B12" and boxes to check yes or no

What is inositol hexaphosphate (IP6) and myo-inositol? Are they helpful in treating cancer or other conditions?

Inositol hexaphosphate (IP6): Find out if IP6 (also known as phytic acid) can prevent or treat cancer. Clinical evidence, dosage, safety and how IP6 differs from myo-inositol. Consumerlab.com's answer explains.

Wooden spoon filled with white inositol capsules

Is canola oil good or bad for you? I heard it can be toxic.

Find out if canola oil is bad for you or good for you, and whether it helps heart health. Clinical evidence and how it compares to other oils.

Is canola oil good or bad? -- bottle of canola oil

Do pistachio nuts really provide as much melatonin as supplements?

Find out if pistachio nuts, or other nuts such as Brazil nuts, cashews, peanuts and others, provide enough melatonin to help with sleep with effects similar to melatonin supplements. ConsumerLab.com's answer explains.

Melatonin in pistachio nuts -- bowl of pistachio nuts

Is green tea from Japan contaminated with radiation?

Radiation levels in green tea from Japan have been closely monitored since the Fukushima Daiichi nuclear power plant accident in 2011. Find out if radiation in green tea from Japan is still a concern. ConsumerLab.com's answer explains.

Japanese Green Tea & Radiation Concerns - teapot and cup of green tea

Does taking curcumin and boswellia together increase their individual anti-inflammatory effects?

Find out if taking boswellia and curcumin together can increase their individual anti-inflammatory effects. ConsumerLab.com's answer explains.

Curcumin and Boswellia for Knee Pain -- Older woman with osteoarthritis holding knee in pain
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