Dr. Stacy Sims on Omega-3s: Supporting Women’s Brain, Hormonal, and Metabolic Health
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Nutrition for women is often discussed in terms of protein, carbohydrates, and training fuel, but foundational fats are frequently overlooked. According to Dr. Stacy Sims, this is a critical gap in how women approach both performance and long-term health.
Omega-3 fatty acids are not a “nice-to-have” nutrient for women. They play a central role in brain function, inflammation regulation, cardiovascular health, and hormonal signaling—all systems that behave differently in female physiology. Dr. Sims consistently emphasizes that women’s outcomes, from recovery to cognition to mood stability, are shaped by how well these systems are supported.
Across her research, athlete education, and podcasts, Dr. Sims highlights Omega-3s as foundational—not a performance hack, but a physiological necessity. This article compiles her insights on why Omega-3s matter more for women, how they work in the body, and how women can use them strategically across all life stages.
What Are Omega-3 Fatty Acids?
Omega-3s are essential polyunsaturated fatty acids, meaning the body cannot produce them and must obtain them through diet or supplementation. The most biologically active Omega-3s include:
EPA (eicosapentaenoic acid)
DHA (docosahexaenoic acid)
These forms are primarily found in marine sources such as fatty fish and high-quality fish oil supplements, although they can be found in vegan sources too.
Dr. Sims frequently explains that Omega-3s are structural nutrients. They are incorporated into cell membranes throughout the body, particularly in the brain, nervous system, and muscle tissue, where they influence signaling, inflammation, and recovery.
For women, this structural role is especially important because hormonal fluctuations affect how cells respond to stress, training, and inflammation.
How Omega-3s Work in the Body
Omega-3s influence multiple systems that are central to women’s health and performance. Dr. Sims often highlights their role in:
Supporting cell membrane fluidity and communication
Supporting brain function, cognition, and mood regulation
Improving muscle protein signaling and recovery
Supporting cardiovascular and metabolic health
DHA is a major structural component of the brain and nervous system, while EPA plays a key role in managing inflammation. Together, they help the body respond to stress and training more efficiently rather than amplifying damage or fatigue.
Dr. Sims emphasizes that Omega-3s help optimize adaptation rather than simply dampening inflammation. This distinction is critical for women who need recovery support without blunting training benefits.
Why Omega-3s Matter More for Women
One of Dr. Sims’ core messages is that women experience inflammation, stress, and recovery differently than men, particularly across the menstrual cycle and during hormonal transitions.
Key factors that increase Omega-3 importance for women include:
Fluctuating estrogen, which affects inflammation and lipid metabolism
Higher susceptibility to brain injury and delayed concussion recovery in sport
Greater cognitive and emotional stress load
Increased risk of under-fueling and chronic inflammation
Estrogen interacts directly with Omega-3 metabolism and utilization. When estrogen levels decline or fluctuate significantly, as they do in perimenopause, women may experience increased inflammation, slower recovery, and greater cognitive fatigue.
Dr. Sims frequently underscores that Omega-3s help buffer these shifts by supporting neural health, mood stability, and systemic resilience.
Omega-3s, Brain Health, and Cognition
Dr. Sims is particularly vocal about Omega-3s for brain health, an area she believes is underprioritized when it comes to women’s performance and longevity.
DHA is essential for:
Cognitive processing speed
Focus and reaction time
Mood regulation
Neurological resilience
Research suggests women may experience greater cognitive disruption from sleep deprivation, stress, and concussion. Omega-3s help support neural repair and signaling, which is especially relevant for athletes, high-stress professionals, and midlife women experiencing brain fog.
Dr. Sims often frames Omega-3s as foundational brain insurance, not only for performance today, but for long-term neurological health.
Omega-3s, Inflammation, and Recovery
Inflammation is a normal and necessary part of training adaptation. However, Dr. Sims points out that women are more likely to experience prolonged inflammation when recovery is insufficient (i.e., due to inadequate sleep and/or underfueling).
Omega-3s support recovery by:
Helping resolve inflammation rather than suppress it
Supporting muscle repair and soreness reduction
Improving joint comfort and tissue resilience
This is particularly relevant for women who train frequently, stack life stress with exercise stress, or struggle with recovery despite adequate sleep and fueling.
Dr. Sims emphasizes that Omega-3s work best as part of a consistent nutritional foundation rather than as a reactive supplement taken only when soreness appears.
Omega-3s During Perimenopause and Menopause
Hormonal transition significantly changes how women experience inflammation, cognition, and metabolic health.
Common midlife challenges include:
Increased joint and muscle pain
Brain fog and mood fluctuations
Higher cardiovascular risk
Slower recovery from training
Dr. Sims often highlights Omega-3s as a key nutritional support during this phase because they address many overlapping issues.
Omega-3 supplementation during perimenopause and menopause may support:
Brain clarity and mood stability
Joint and connective tissue health
Cardiovascular protection
Training recovery and consistency
To help offset some of these factors, Dr. Sims encourages midlife women to strengthen their nutritional foundation with Omega-3s often being a core component.
How Dr. Sims Thinks About Omega-3 Supplementation
Dr. Sims’ approach to supplementation is consistent across nutrients: precision over excess.
Her guidance around Omega-3s typically includes:
Prioritizing EPA and DHA over general “fish oil”
Using clinically meaningful doses
Viewing Omega-3s as a daily foundational nutrient
Unlike adaptogens or stimulants, Omega-3s are not used cyclically or situationally. Dr. Sims views them as a long-term investment in cellular health, particularly for women navigating heavy training loads, stress, or hormonal change.
Dr. Stacy Sims × Momentous Vegan Omega-3
Dr. Sims partners with Momentous because the brand aligns with her standards for evidence-based formulation, transparency, and product integrity. She uses Momentous Vegan Omega-3.
Momentous Vegan Omega-3
Powerful Vegan Omega-3: Delivers a market-leading 500 mg EPA + 500 mg DHA per 2-capsule serving—far exceeding typical plant-based formulas that rely on poorly converting seed-derived ALA (alpha-linolenic acid).
Superior Absorption: Sourced from marine algae in its natural triglyceride form, allowing for better bioavailability and higher utilization than synthetic ethyl esters.
Full-Body Support: EPA + DHA are essential for brain function, cardiovascular health, inflammation regulation, and muscle and joint recovery.
The Momentous Standard™: NSF Certified for Sport® and made with clean, clinically effective ingredients to support long-term performance and health.
Momentous Omega-3
Sustainably Sourced: Momentous also offers Omega-3 that is sustainably sourced from small fish—mackerel, anchioves, and sardines—from Norwegian fisheries. These types of fish naturally contain lower levels of heavy metals.
High Potency, Zero Aftertaste: The result is a potent 1,600 mg of combined EPA and DHA in a clinically balanced 1:1 ratio, delivered without the fishy aftertaste.
Rigorously Tested: NSF certification ensures purity and potency with every batch tested for heavy metals and harmful additives to meet the highest standards.
