Last update
5/15/2026
Reviewed By
Overview
SCIENTIFIC SCORE
Likely Ineffective
Based on 4 Researches
4.5
USERS' SCORE
Good
Based on 7 Reviews
8.7
Top Medical Research Studies
2
Flaxseed lignans ineffective for hot flashes
Researchers conducted a well-designed, double-blind, placebo-controlled trial involving 188 postmenopausal women to test whether flaxseed could reduce hot flashes. Participants either consumed a flaxseed bar containing 410 mg of lignans or a placebo bar daily for six weeks while tracking their hot flash symptoms.
Both groups experienced modest improvements, but the difference wasn't statistically significant. The flaxseed group saw their hot flash scores drop by 4.9 points compared to 3.5 points in the placebo group—a gap too small to prove real benefit. Interestingly, about one-third of women in each group achieved a 50% reduction, suggesting placebo effects played a role.
Both groups tolerated the bars reasonably well, though digestive side effects like bloating, gas, and diarrhea were common, likely from the fiber content rather than the lignans themselves.
Both groups experienced modest improvements, but the difference wasn't statistically significant. The flaxseed group saw their hot flash scores drop by 4.9 points compared to 3.5 points in the placebo group—a gap too small to prove real benefit. Interestingly, about one-third of women in each group achieved a 50% reduction, suggesting placebo effects played a role.
Both groups tolerated the bars reasonably well, though digestive side effects like bloating, gas, and diarrhea were common, likely from the fiber content rather than the lignans themselves.
Read More
8
Fiber intake reduces hot flash severity in survivors
We examined 2,198 breast cancer survivors enrolled in a large dietary intervention study to understand how food choices affect hot flashes and night sweats. Using statistical analysis, we tracked women's symptoms over 12 months and measured their dietary intake of fiber, fat, and soy foods, plus supplement use.
Women who ate more dietary fiber experienced less severe hot flashes over the year. Being premenopausal and having strong social support also predicted better symptom relief. Interestingly, vitamin E and phytoestrogen supplements didn't help—women using them actually reported worse symptoms at baseline. Higher body weight, tamoxifen use, and smoking worsened symptoms over time.
Women who ate more dietary fiber experienced less severe hot flashes over the year. Being premenopausal and having strong social support also predicted better symptom relief. Interestingly, vitamin E and phytoestrogen supplements didn't help—women using them actually reported worse symptoms at baseline. Higher body weight, tamoxifen use, and smoking worsened symptoms over time.
Read More
5
Oat fiber modestly reduced hot flashes and fatigue
A 4-week randomized controlled trial examined how oat β-glucan, a soluble fiber, affected non-gastrointestinal symptoms in 207 adults with borderline high cholesterol. Participants consumed either a fiber-rich beverage or placebo three times daily while rating symptom severity at baseline, 2 weeks, and 4 weeks.
Those taking oat fiber experienced significant reductions in exhaustion and fatigue compared to baseline. At 4 weeks, the fiber group also reported less severe hot flashes, headaches, and joint pain than the control group. Improvements in anxiety and feeling cold were also noted, though these were more modest.
Inflammation markers like C-reactive protein appeared linked to symptom improvements. While these results are promising and suggest fiber may benefit overall wellness, the researchers emphasized this is preliminary evidence requiring further investigation.
Those taking oat fiber experienced significant reductions in exhaustion and fatigue compared to baseline. At 4 weeks, the fiber group also reported less severe hot flashes, headaches, and joint pain than the control group. Improvements in anxiety and feeling cold were also noted, though these were more modest.
Inflammation markers like C-reactive protein appeared linked to symptom improvements. While these results are promising and suggest fiber may benefit overall wellness, the researchers emphasized this is preliminary evidence requiring further investigation.
Read More
Most Useful Reviews
10
Symptoms alleviated
195 people found this helpful
I purchased selenium from iHerb based on a friend's recommendation due to the high levels of healthy minerals found in centenarians, especially selenium. Our Selenium Super Complex offers three forms of selenium and vitamin E for health and longevity, which is essential for me at my age, dealing with menopause and hot flashes. Since using this complex, symptoms like hot flashes, weakness, and dizziness have disappeared. I realised this complex assists the body in combating oxidative damage. You only need to take it once a day; there are 100 capsules in a jar, sufficient for three months.
Read More
7.5
Less intense flashes
104 people found this helpful
I took it as prescribed by an endocrinologist for three months; the doctor recommended this specific product from the entire range of niacins available on iHerb. There were no side effects, redness, or allergies. The hot flashes have become less intense, with their frequency reduced to 2-3 per day, which I found acceptable.
Read More
9
Essential vitamin preparation
21 people found this helpful
I heard that it is effective for hot flashes and purchased it. I take 5 of 400mg and 2000mg a day. In the middle of the night, it suddenly became hot, waking me up twice with sweat on my head and neck, but it didn't heat up too much. During the day, I have no hot flashes and feel calm. Previously, I took Chinese herbal medicine for 3 months with no effect, but with Vitamin E, I saw improvements in less than a week.
Read More
Medical Researches
SCIENTIFIC SCORE
Likely Ineffective
Based on 4 Researches
4.5
- All Researches
8
Fiber intake reduces hot flash severity in survivors
We examined 2,198 breast cancer survivors enrolled in a large dietary intervention study to understand how food choices affect hot flashes and night sweats. Using statistical analysis, we tracked women's symptoms over 12 months and measured their dietary intake of fiber, fat, and soy foods, plus supplement use.
Women who ate more dietary fiber experienced less severe hot flashes over the year. Being premenopausal and having strong social support also predicted better symptom relief. Interestingly, vitamin E and phytoestrogen supplements didn't help—women using them actually reported worse symptoms at baseline. Higher body weight, tamoxifen use, and smoking worsened symptoms over time.
Women who ate more dietary fiber experienced less severe hot flashes over the year. Being premenopausal and having strong social support also predicted better symptom relief. Interestingly, vitamin E and phytoestrogen supplements didn't help—women using them actually reported worse symptoms at baseline. Higher body weight, tamoxifen use, and smoking worsened symptoms over time.
Read More
5
Oat fiber modestly reduced hot flashes and fatigue
A 4-week randomized controlled trial examined how oat β-glucan, a soluble fiber, affected non-gastrointestinal symptoms in 207 adults with borderline high cholesterol. Participants consumed either a fiber-rich beverage or placebo three times daily while rating symptom severity at baseline, 2 weeks, and 4 weeks.
Those taking oat fiber experienced significant reductions in exhaustion and fatigue compared to baseline. At 4 weeks, the fiber group also reported less severe hot flashes, headaches, and joint pain than the control group. Improvements in anxiety and feeling cold were also noted, though these were more modest.
Inflammation markers like C-reactive protein appeared linked to symptom improvements. While these results are promising and suggest fiber may benefit overall wellness, the researchers emphasized this is preliminary evidence requiring further investigation.
Those taking oat fiber experienced significant reductions in exhaustion and fatigue compared to baseline. At 4 weeks, the fiber group also reported less severe hot flashes, headaches, and joint pain than the control group. Improvements in anxiety and feeling cold were also noted, though these were more modest.
Inflammation markers like C-reactive protein appeared linked to symptom improvements. While these results are promising and suggest fiber may benefit overall wellness, the researchers emphasized this is preliminary evidence requiring further investigation.
Read More
3
Flax shows limited hot flash relief; broader breast health benefits
A systematic review examined 10 studies—including randomized controlled trials and observational research—to evaluate flax's effects on menopausal symptoms and breast cancer risk. The findings on hot flashes were modest: flax supplementation (7.5 g daily) showed only nonsignificant decreases in hot flash symptoms.
However, flax showed more promising results in other areas. At higher doses (25 g daily), it increased tumor cell death markers and reduced problematic protein expression in breast tissue. Observational studies linked flax consumption to lower breast cancer risk and improved mental health outcomes. The evidence suggests flax may offer broader protective benefits for breast health, though its direct impact on hot flashes remains limited.
However, flax showed more promising results in other areas. At higher doses (25 g daily), it increased tumor cell death markers and reduced problematic protein expression in breast tissue. Observational studies linked flax consumption to lower breast cancer risk and improved mental health outcomes. The evidence suggests flax may offer broader protective benefits for breast health, though its direct impact on hot flashes remains limited.
Read More
2
Flaxseed lignans ineffective for hot flashes
Researchers conducted a well-designed, double-blind, placebo-controlled trial involving 188 postmenopausal women to test whether flaxseed could reduce hot flashes. Participants either consumed a flaxseed bar containing 410 mg of lignans or a placebo bar daily for six weeks while tracking their hot flash symptoms.
Both groups experienced modest improvements, but the difference wasn't statistically significant. The flaxseed group saw their hot flash scores drop by 4.9 points compared to 3.5 points in the placebo group—a gap too small to prove real benefit. Interestingly, about one-third of women in each group achieved a 50% reduction, suggesting placebo effects played a role.
Both groups tolerated the bars reasonably well, though digestive side effects like bloating, gas, and diarrhea were common, likely from the fiber content rather than the lignans themselves.
Both groups experienced modest improvements, but the difference wasn't statistically significant. The flaxseed group saw their hot flash scores drop by 4.9 points compared to 3.5 points in the placebo group—a gap too small to prove real benefit. Interestingly, about one-third of women in each group achieved a 50% reduction, suggesting placebo effects played a role.
Both groups tolerated the bars reasonably well, though digestive side effects like bloating, gas, and diarrhea were common, likely from the fiber content rather than the lignans themselves.
Read More
User Reviews
USERS' SCORE
Good
Based on 7 Reviews
8.7
- All Reviews
- Positive Reviews
- Negative Reviews
10
Symptoms alleviated
195 people found this helpful
I purchased selenium from iHerb based on a friend's recommendation due to the high levels of healthy minerals found in centenarians, especially selenium. Our Selenium Super Complex offers three forms of selenium and vitamin E for health and longevity, which is essential for me at my age, dealing with menopause and hot flashes. Since using this complex, symptoms like hot flashes, weakness, and dizziness have disappeared. I realised this complex assists the body in combating oxidative damage. You only need to take it once a day; there are 100 capsules in a jar, sufficient for three months.
Read More
7.5
Less intense flashes
104 people found this helpful
I took it as prescribed by an endocrinologist for three months; the doctor recommended this specific product from the entire range of niacins available on iHerb. There were no side effects, redness, or allergies. The hot flashes have become less intense, with their frequency reduced to 2-3 per day, which I found acceptable.
Read More
9
Essential vitamin preparation
21 people found this helpful
I heard that it is effective for hot flashes and purchased it. I take 5 of 400mg and 2000mg a day. In the middle of the night, it suddenly became hot, waking me up twice with sweat on my head and neck, but it didn't heat up too much. During the day, I have no hot flashes and feel calm. Previously, I took Chinese herbal medicine for 3 months with no effect, but with Vitamin E, I saw improvements in less than a week.
Read More
9
Effective relief
1 people found this helpful
I can’t live without this; if I miss a dose, my hot flashes return! This product works so well that I no longer experience night sweats or menopausal hot flashes! It offers amazing value for money, so please keep producing it! I've transformed from a hot menopausal mess back to my wonderful self again! Thank you so much.
Read More
6
Reduced intensity
1 people found this helpful
The product helped, but only after using about half the can did I notice some effect; the hot flashes decreased in both frequency and intensity, so I can't say it's remarkable.
Read More
Frequently Asked Questions
No FAQs are available for this product and symptom.
References
- Wolever TMS, Rahn M, Dioum EH, Jenkins AL, Ezatagha A, et al. Effect of Oat β-Glucan on Affective and Physical Feeling States in Healthy Adults: Evidence for Reduced Headache, Fatigue, Anxiety and Limb/Joint Pains. Nutrients. 2021;13. 10.3390/nu13051534
- Flower G, Fritz H, Balneaves LG, Verma S, Skidmore B, et al. Flax and Breast Cancer: A Systematic Review. Integr Cancer Ther. 2014;13:181. 10.1177/1534735413502076
- Pruthi S, Qin R, Terstreip SA, Liu H, Loprinzi CL, et al. A phase III, randomized, placebo-controlled, double-blind trial of flaxseed for the treatment of hot flashes: North Central Cancer Treatment Group N08C7. Menopause. 2012;19:48. 10.1097/gme.0b013e318223b021
- Gold EB, Flatt SW, Pierce JP, Bardwell WA, Hajek RA, et al. Dietary factors and vasomotor symptoms in breast cancer survivors: the WHEL Study. Menopause. 2006;13:423. PubMed
