Beauty from the Inside Out: Pilot Study Investigates the Effects of Daily Almond Consumption on Facial Wrinkles

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Beauty from the Inside Out: Pilot Study Investigates the Effects of Daily Almond Consumption on Facial Wrinkles

New research using high-resolution imaging shows reduced measures of wrinkle width and severity in postmenopausal women who ate almonds as a daily snack

Kolkata, (November 21st, 2019) –Anti-aging regimens abound but emerging research suggests that one delicious addition to your skincare routine may be in your pantry instead of your makeup kit: almonds.

A new pilot study by researchers at the University of California, Davis[1][1] found that a daily snack of almonds in place of other nut-free snacks improved measures of wrinkle width and severity in post-menopausal women. The study was funded by the Almond Board of California and is the first of its kind to examine almonds’ effects on skin health.A larger and longer-term follow-up study is underway.

In this 16-week randomized controlledtrial, 28 healthy postmenopausal women with Fitzpatrick skin type 1 or 2 (characterized by increased tendencyto burn with sun exposure) were randomly assigned to one of two groups. In the intervention group, women ate almonds as a snack, which accounted for 20% of their total daily calorie intake,or 340 calories per day on average (60 grams). The control group ate a nut-free snack that also accounted for 20% of calories: a cereal bar, granola bar or pretzels. Aside from these snacks, study participants ate their regular diets and did not eat any nuts or nut-containing products.

Skin assessments were made at the start of the study, and again at 4 weeks, 8 weeks, 12 weeks and 16 weeks. At each visit, facial wrinkles were assessed using high-resolution facial imaging and validated 3-D facial modeling and measurement. “These high resolution cameras allow for 3-D reconstruction of any wrinkles so that they can be mapped for their key characteristics of width and severity. The severity score is a calculation of the depth and length of a wrinkle,” explains Raja Sivamani, MD MS AP, integrative dermatologist and lead researcher on the study. Skin barrier function was also assessed, by measuring sebum production and transepidermal water loss (TEWL).  Skin barrier function examines the strength of the skin barrier and how well it protects skin from moisture loss (TEWL) and from harmful irritants coming from the environment.

By the end of the study at 16 weeks, photographic image analysis showed statistically significant improvements for participants in the almond snack group compared to the control group (P<0.02):

  • Wrinkle width decreased by 10%
  • Wrinkle severity decreased by 9%

There were no significant changes in skin barrier function between groups.

“Food as a means of promoting skin health – the “health from the inside out” idea – is of growing interest to those looking for options for healthy aging,” says Dr. Sivamani. “It’s also a growing area of scientific research. Almondsare a rich source of antioxidant vitamin E and deliver essential fatty acids and polyphenols.They’re a smart choice for overall good nutrition. And, as seen in this study, almonds may hold promise as a food to include as part of a healthy aging diet, especially for post-menopausal women.”

Study at a Glance:

The Study: 28 healthy, postmenopausal women with Fitzpatrick skin type 1 (always burns, never tans) or 2 (usually burns, tans minimally) were randomly assigned to either an intervention or a control group. Almonds were provided as 20% of total daily calorie intake for the intervention group (340 calories/day on average), about 60 grams. The control group consumed a calorie-matched nut-free snack in place of almonds daily:  cereal bar, energy bar or pretzels. All participants were advised not to consume any nuts or nut-containing products over the course of the study (except for the almond snack for the intervention group). They otherwise were advised to continue their usual daily energy intake.

After a four-week dietary wash-out period, participants were randomized to one of the two study groups detailed above. Study visits occurred at baseline, 4 weeks, 8 weeks, 12 weeks and 16 weeks.

Facial wrinkles were assessed using high-resolution facial photography and validated 3-D facial modeling and measurement at baseline, 8 weeks and 16 weeks. Skin barrier function was assessed by measurement of sebum production and transepidermal water loss (TEWL).

Results:

  • Photographic image analysis showed that the almond group had significant reductions in wrinkle width and severity, by 10 and 9%, respectively, compared to the control group at the 16-week time point (P<0.02).
  • There were no significant differences in sebum production between groups after 8 and 16 weeks.
  • There were no significant differences between groups in transepidermal water loss (TEWL) from baseline after 8 and 16 weeks.

·         There were no significant changes from baseline in the skin barrier function (P=0.65) between the almond and control groups relative to baseline after 16 weeks.

Study Limitations: Aging is a long-lasting process so the findings from this 16-week study may be difficult to reproduce and generalize to extended periods of time. Skin-aging is also multi-factorial in nature and although certain groups were excluded (i.e., those with a smoking history), there is variance in aging confounders, such as frequency of UV light exposure and emotional stress, which were outside the scope of the study. This study was limited to cosmetic evaluation, as no measurements were made regarding collagen production. Study did not evaluate disease or younger subjects, so results are limited to otherwise healthy post-menopausal females. In addition, this was a pilot study with a limited number of participants. Future studies should expand to a larger recruitment pool.  

Conclusion: Results of this pilot study suggest that daily consumption of almonds may play a role inreducing wrinkle severityin post-menopausal women. The outcomes warrant future studies with expanded population groups and additional evaluations for signs of skin aging.


About Post Author

Editor Desk

Antara Tripathy M.Sc., B.Ed. by qualification and bring 15 years of media reporting experience.. Coverred many illustarted events like, G20, ICC,MCCI,British High Commission, Bangladesh etc. She took over from the founder Editor of IBG NEWS Suman Munshi (15/Mar/2012- 09/Aug/2018 and October 2020 to 13 June 2023).
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