A New Study Identifies 2 Nutrients That Could Delay Menopause

Diet High in Antioxidants May Delay Menopause and Extend Reproductive Years

Reviewed by: Dietitian Emily Lachtrupp, M.S., RD
Photo: Robby Lozano. EatingWell design.

Key Takeaways

• Consuming a diet rich in antioxidants is associated with later menopause and longer reproductive lifespan.
• Vitamin C and carotenoids showed the strongest links to delayed menopause.
• A balanced antioxidant intake could reduce the risk of early menopause by 27%.

The timing of menopause impacts long-term health. Women experiencing menopause before age 45 have increased risks of heart disease, osteoporosis, and other health conditions. Understanding factors that can influence menopause onset, such as diet, may help promote long-term wellness.

Antioxidants combat oxidative stress, which can damage cells and accelerate aging, including ovarian aging. Recent research has examined whether higher antioxidant intake is associated with delayed menopause and longer reproductive life.

Study Overview

Researchers analyzed data from the National Health and Nutrition Examination Survey (NHANES), examining 4,514 postmenopausal women. The average age at menarche was about 13, with an average reproductive lifespan of roughly 36.5 years.

The Composite Dietary Antioxidant Index (CDAI) was used to assess intake of six key nutrients: zinc, selenium, vitamin A, vitamin C, vitamin E, and carotenoids. Statistical analysis explored the relationship between CDAI scores, menopause age, and reproductive lifespan.

Findings

• Higher CDAI scores were linked to later menopause and longer reproductive lifespan. Women with the highest antioxidant intake reached menopause nearly a year later and had a reproductive lifespan a year longer than those with the lowest intake.
• Higher antioxidant intake was associated with a 27% reduced risk of early menopause (before age 45).
• The benefits of antioxidants appeared to plateau at a CDAI score of 1.05, indicating balanced intake is more important than excessive consumption.
• Vitamin C and carotenoids emerged as the most influential nutrients for delaying menopause and extending reproductive years.

Study Limitations

• The study is cross-sectional, capturing data at a single point in time, so it cannot confirm a causal link between antioxidants and delayed menopause.
• Self-reported dietary data may introduce recall bias.
• The CDAI only measures six antioxidants, excluding others like polyphenols that may also influence reproductive health.

Practical Implications

Eating antioxidant-rich foods may support reproductive health and delay menopause, offering long-term health benefits such as reduced risk of osteoporosis and cardiovascular disease. Maintaining a consistent, moderate intake of antioxidants appears sufficient for benefit.

Suggested daily targets to reach beneficial antioxidant levels include:

• Vitamin C: 90 mg/day (e.g., 1 orange + 1 cup broccoli)
• Carotenoids: 6 mg/day (e.g., 1 medium carrot + 1 cup spinach)
• Zinc: 11 mg/day (e.g., 3 oz. oysters + 1 serving almonds)

Expert Insight

This research highlights a connection between diet and reproductive aging. By analyzing over 4,500 women using the CDAI, the study found that higher antioxidant intake correlates with later menopause and longer reproductive lifespan. Vitamin C and carotenoids were particularly influential, suggesting targeted dietary choices could support ovarian health and overall well-being.

Analysis: The Role of Antioxidants in Delaying Menopause

Recent findings suggest that a diet rich in antioxidants may play a significant role in delaying menopause and extending a woman's reproductive lifespan. This is an important discovery as the timing of menopause directly impacts long-term health, with early menopause being linked to an increased risk of heart disease, osteoporosis, and other health concerns. The study analyzed data from 4,514 postmenopausal women and found that higher antioxidant intake was associated with later menopause and a longer reproductive life.

The research specifically highlighted the benefits of vitamin C and carotenoids, which were found to have the strongest links to delayed menopause. Women with higher antioxidant intake reached menopause almost a year later and experienced a reproductive lifespan extended by the same amount. The results suggest that a balanced antioxidant intake could reduce the risk of early menopause by 27%, which is significant in promoting overall health for women as they age.

However, it is important to note that while the correlation between antioxidants and delayed menopause is evident, the study's cross-sectional nature means that no causal link can be confirmed. Additionally, the use of self-reported dietary data introduces the potential for recall bias. Despite these limitations, the findings underscore the importance of a consistent, moderate intake of antioxidants for long-term reproductive and overall health.

As the research suggests, focusing on foods rich in vitamin C, carotenoids, and other antioxidants could support reproductive health. Recommendations for daily antioxidant intake include 90 mg of vitamin C, 6 mg of carotenoids, and 11 mg of zinc, which can be easily met with a balanced diet including fruits, vegetables, and nuts. The key takeaway from this study is that moderation and balance are crucial to achieving the desired health benefits.

Sources:

• The 2 Nutrients That May Help Delay Menopause, According to a New Study