Pesos, Hormonas e Fertilidade - Viva Saudável

Weight, Hormones, and Fertility

May 14, 2026
Weight, hormones and fertility — Viva Saudável
Truth or Myth · May 2026

Weight, hormones, and fertility: is there really a link?

Viva Saudável Read: 5 min Reproductive Health

This is a question many people have but few verbalize. It is a sensitive topic, touching on issues of body image, self-esteem, and health all at once. But discussing it clearly and without judgment is important.

Truth — there is scientific evidence
higher risk of infertility in women with obesity vs. normal weight
−20%
probability of conception when the man has obesity
01 — In women

What happens in the female body

Adipose tissue is not just an energy reserve — it is also an active endocrine organ. In excess, it produces oestrogens in a dysregulated manner and can cause insulin resistance. The result is a condition that directly affects the reproductive cycle.

Mechanisms involved

  • 1Excess adipose tissue → excessive oestrogen production
  • 2Insulin resistance → ovulatory dysfunction
  • 3Hormonal imbalance → menstrual irregularities
  • 4Increased risk of Polycystic Ovary Syndrome (PCOS)

The opposite is also true: a weight far below ideal (BMI under 18.5) can also suppress ovulation and cause menstrual irregularities, affecting fertility.

02 — In men

And in men? Male fertility is also affected

When it comes to fertility, men are often overlooked — but sperm quality accounts for half of the equation. In men with obesity, studies indicate an average 20% reduction in the couple's probability of conceiving.

"Sperm take about 3 months to complete their cycle — today's habits are reflected in tomorrow's sperm quality."

Impact on male fertility

  • Reduction in sperm quality and motility
  • Changes in hormonal balance (reduced testosterone)
  • Higher risk of poor embryonic development
  • Increased oxidative stress and sperm DNA damage
03 — What you can do

The role of supplementation in hormonal and reproductive support

Regardless of weight, cellular nutrition is a factor accessible to everyone. Certain nutrients play a direct role in hormonal support and protecting reproductive cells from oxidative stress.

Omega 3 Enerzona Omega 3 RX 1000 mg Hormonal balance and anti-inflammatory action. EPA:DHA 2:1. IFOS Certified. View product →
Zinc Zinc Picolinate 15 mg — Thorne Male hormones, sperm DNA, and motility. High absorption. View product →
Selenium Selenium 200 mcg — Thorne Cellular antioxidant. Organic selenomethionine. Thyroid function and sperm quality. View product →
CoQ10 CoQ10 100 mg — Thorne Cellular energy and antioxidant protection. Liposomal formula. For men and women. View product →

"Caring for reproductive health is not a future project — it starts today."

This content is for informational purposes only and does not replace personalized medical or nutritional advice. If in doubt, consult a healthcare professional.

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