Women's Health Nutritionist in Brooklyn, New York: A Root-Cause Approach to Hormone Health

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A holistic health nutritionist takes a whole-person approach to wellness, looking beyond food alone to consider how nutrition, lifestyle, sleep, stress, movement, and daily habits can work together to support overall well-being. They may help clients:



• Develop personalized eating strategies.
• Identify areas for nutritional improvement.
• Create realistic habits that fit their individual goals and lifestyle.

Rather than focusing on quick fixes or restrictive diets, holistic nutrition often emphasizes balanced, sustainable choices that support long-term health and a healthier relationship with food.

As a chiropractor and holistic nutrition practitioner with over a decade of experience working specifically with women's hormonal health, Dr. Sergi’s practice focuses on functional and holistic nutrition, with the goal of identifying the diet, lifestyle, and nutrient patterns that may be contributing to a symptom.

This personalized approach gives Dr. Sergi time to understand each woman’s eating habits, stress levels, health history, and concerns. Her chiropractic background also informs her whole-person perspective, with attention to how nutrition, movement, sleep, and daily routines fit together. Ongoing support allows her to help clients make manageable changes and adjust their plans as their needs evolve.

#1: Thyroid Deficiencies

Thyroid dysfunction, including Hashimoto's disease, is one of the most common and most frequently missed issues in women between ages 30–60. Because Hashimoto's can develop slowly, a woman may have thyroid antibodies or symptoms before standard thyroid hormone markers clearly show hypothyroidism. 

A women’s health nutritionist can support overall nutrition for women managing thyroid conditions by helping create balanced, nutrient-rich eating habits that complement medical care. As a nutritionist specializing in women’s health, Dr. Sergi can consider lifestyle and personal goals while also:

• Reviewing dietary patterns
• Identifying potential nutritional gaps
• Suggesting practical food choices

#2: Polycystic Ovarian Syndrome (PCOS)

Nutrition helps manage polycystic ovarian syndrome by improving insulin sensitivity and supporting hormone regulation, which can ease symptoms like irregular periods, excess hair growth, and difficulty losing weight. Since PCOS is closely tied to insulin resistance, dietary changes that stabilize blood sugar often produce noticeable improvement in symptoms over time.

PCOS affects at least 1 in 10 women, and when left unmanaged, it can raise the risk of type 2 diabetes and other chronic conditions. Many women with PCOS spend years bouncing between providers before anyone connects their symptoms, whether that's irregular cycles, acne, unexplained weight gain, or excess hair growth, back to insulin resistance. A personalized approach looks at:

• Foods and nutrients that support insulin sensitivity, such as fiber-rich vegetables, lean protein, and healthy fats, with balanced carbohydrate portions
• How a plan built around one woman's specific labs, symptoms, and food reactions differs from a generic low-carb protocol pulled from a magazine or app
• The role of consistent meal timing and protein distribution throughout the day in preventing the blood sugar spikes and crashes that can worsen PCOS symptoms
• How stress and sleep patterns interact with insulin resistance, since cortisol and blood sugar regulation are closely linked

#3: Iron Deficiency

Low iron is a common contributor to fatigue, especially in women with heavier menstrual cycles. General hormonal fatigue, brain fog, and low mood often get attributed to stress, aging, or simply having a busy life.

While stress, aging, and a busy life can all play a role, they don’t rule out nutritional or hormonal contributors. A woman’s health nutritionist looks at the whole pattern, including symptom history, diet, and multiple lab markers, rather than stopping at a single test result that happens to fall within normal range.

#4: Vitamin Deficiencies

Certain vitamin and mineral deficiencies can interfere with processes involved in hormone production, metabolism, and overall health. While a deficiency does not automatically cause a hormone imbalance, getting adequate nutrients is an important part of supporting normal body function. A women’s health nutritionist can help identify potential dietary gaps and recommend balanced food choices based on individual needs.

Some nutrients commonly associated with hormone-related health include:

• Vitamin D: Supports bone health, immune function, and several processes involved in endocrine health
• B Vitamins: Help support energy metabolism and normal nervous system function
• Iron: Important for oxygen transport and energy; low iron levels can contribute to fatigue
• Magnesium: Involved in hundreds of biochemical reactions, including energy production and muscle and nerve function
• Zinc: Supports immune function, metabolism, and normal reproductive processes
• Iodine: Essential for producing thyroid hormones, although both too little and too much can cause problems

If you suspect a vitamin or mineral deficiency, Dr. Sergi at HealthierU can provide testing and guidance to help determine the underlying cause.

#5: Fertility and Preconception Nutrition

A woman preparing to conceive is essentially preparing her body's internal environment months in advance, and diet plays a real part in that groundwork. Nutrient status at conception can influence everything from cycle regularity to how the body supports early pregnancy.

Preconception holistic nutrition support typically includes:

• Optimizing key nutrients like folate, iron, and omega-3 fatty acids, which support egg quality and early fetal development.
• Mediterranean-style eating patterns, which research has associated with metabolic health and fertility-related outcomes.
• Addressing underlying issues like thyroid imbalance or blood sugar dysregulation that may be quietly interfering with cycle regularity or implantation.
• Building sustainable habits before conception, since drastic last-minute changes are harder to maintain than gradual adjustments started months in advance.

This stage of care often overlaps with addressing conditions like PCOS or thyroid dysfunction, since both can directly affect fertility. Rather than treating preconception nutrition as a separate checklist, it's usually woven into whatever underlying hormonal picture a woman is already navigating.

#6: Menopause

A nutritionist can implement targeted nutritional strategies to help manage menopause symptoms like:

• Hot flashes
• Disrupted sleep
• Mood changes
• Hair loss
• Bone density loss 

Foods rich in phytoestrogens, calcium, and stable protein sources can support the body through this transition as part of a broader care plan.

Supporting the body through menopause includes:

• Phytoestrogens and calcium-rich foods, which may help offset the drop in estrogen and support bone health as women age
• Maintaining a stable blood sugar throughout the day, which plays a direct role in mood consistency and energy levels during this transition
• Adequate protein intake to help preserve lean muscle mass, which naturally declines with age and with the hormonal shifts of menopause
• Attention to sleep-supportive nutrients, since disrupted sleep during perimenopause and menopause can compound fatigue, mood changes, and appetite regulation issues

Menopause nutrition at HealthierU isn't just about managing hot flashes at the moment. It's also about laying the groundwork for long-term bone and metabolic health during a stage of life when both become more vulnerable.

The process starts with an initial appointment where Dr. Sergi takes the time to understand your: 



• Health history
• Current symptoms
• Lifestyle

From there, a comprehensive nutritional assessment helps identify where deficiencies, food sensitivities, or imbalances might be contributing to how you feel.

As a holistic nutritionist in Brooklyn, Dr. Sergi works to pinpoint the specific foods and patterns that support your body and the ones that work against it. She builds a plan around your actual results: your diet, your supplements if needed, and lifestyle adjustments that fit your routine. 

Some women notice energy changes after consistent dietary adjustments, while others, especially those managing longer-standing thyroid or hormonal issues, may need more time and follow-up before symptoms shift meaningfully.

Follow-up appointments are typically used to track progress, adjust the plan based on how your body is responding, and reassess lab markers as needed. This isn't a static, one-time meal plan handed over and left unchanged. As symptoms shift, or as new information from labs or symptom tracking comes in, the plan adjusts along with it. Many women find that the ongoing check-ins are just as valuable as the initial assessment, since they provide accountability and a chance to troubleshoot in real time rather than guessing on their own for months before their next appointment.

Dr. Sergi typically works with women ages 30–60 who are dealing with hormone-related symptoms, including: 



• Fatigue that doesn't improve with sleep
• Cycles that have become unpredictable
• Weight changes that don't respond to the usual advice

Many of them have already been told their labs are normal and are looking for someone who will dig a little deeper.

HealthierU is based in Brooklyn and serves women throughout the surrounding neighborhoods. If you're looking for a women's health nutritionist in Brooklyn, New York, request a nutrition consultation to discuss your symptoms, health history, and a personalized plan for hormone, thyroid, or menopause-related support.