8 Things to Try Before (Or Alongside) Antidepressants

Antidepressants are a valid and sometimes essential treatment for depression — but they don’t have to be the first or only option. For mild-to-moderate depression, and as part of a comprehensive approach to more severe cases, several evidence-based interventions can meaningfully improve symptoms, reduce reliance on medication, or enhance the effectiveness of antidepressants you’re already taking. Here are eight things worth trying before or alongside pharmaceutical treatment.

1. A Structured Exercise Protocol

Exercise is not just helpful for depression — it is clinically antidepressant. A meta-analysis of 33 clinical trials concluded that exercise was significantly more effective than control conditions and comparable to antidepressant medication for reducing depressive symptoms. For mild-to-moderate depression specifically, exercise is a first-line recommendation from several national mental health bodies. The therapeutic protocol that has the most evidence: 30–45 minutes of moderate-intensity aerobic exercise (brisk walking, jogging, cycling, swimming) 3–5 times per week. Adding resistance training 2 days per week provides additional benefit. The antidepressant effects of exercise build over 4–8 weeks of consistent practice and persist long-term with continued activity. If motivation is a barrier (as it often is in depression), start with 10-minute walks and build gradually — even small amounts of movement produce measurable mood benefits.

2. An Anti-Inflammatory Diet

The link between diet quality and depression is now well-established. The SMILES trial (2017) — a pioneering randomized controlled trial — found that a Mediterranean-style dietary intervention produced significant reductions in depression scores comparable to therapy, with 32% of diet group participants achieving remission. The anti-inflammatory diet eliminates processed foods, refined sugars, and industrial seed oils while emphasizing fatty fish, olive oil, vegetables, legumes, whole grains, nuts, and fermented foods. This pattern reduces inflammatory cytokines, supports gut microbiome diversity, provides essential brain nutrients, and stabilizes blood sugar — addressing multiple biological pathways involved in depression simultaneously. Dietary change is one of the highest-leverage, lowest-risk interventions available for depression and should be part of any comprehensive treatment plan.

3. Sleep Optimization

Sleep is not just affected by depression — it drives it. Chronically disrupted sleep activates neuroinflammatory pathways, dysregulates the HPA stress axis, reduces the brain’s capacity for emotional regulation, and impairs the clearing of toxic metabolic byproducts that accumulate during wakefulness. Optimizing sleep before or alongside antidepressant treatment produces better outcomes and faster recovery. Key interventions include: maintaining a consistent wake time (the most powerful circadian regulator), morning light exposure for 10–20 minutes upon waking, eliminating screens for 60–90 minutes before bed, keeping the bedroom cool (65–68°F / 18–20°C), and addressing any underlying sleep disorders. Cognitive Behavioral Therapy for Insomnia (CBT-I) is the gold-standard non-pharmacological treatment for insomnia and has been shown to also improve depression outcomes.

4. Therapy — Especially CBT or Somatic Approaches

Psychotherapy is the other gold-standard treatment for depression alongside medication — and for mild-to-moderate depression, therapy alone produces outcomes equivalent to antidepressants with lower relapse rates after treatment ends. Cognitive Behavioral Therapy (CBT) has the strongest evidence base and addresses the dysfunctional thought patterns and behavioral avoidance that maintain depression. Behavioral Activation — scheduling pleasurable and meaningful activities even when motivation is absent — is a powerful CBT component for depression. For depression with trauma roots, somatic therapies (Somatic Experiencing, EMDR, Sensorimotor Psychotherapy) address the bodily encoding of trauma that talk therapy alone cannot reach. The combination of therapy and medication consistently outperforms either alone for moderate-to-severe depression.

5. Omega-3 Supplementation

Omega-3 supplementation — specifically high-EPA formulas at therapeutic doses (2–4 grams EPA+DHA daily) — has genuine evidence for depression treatment and has been recommended as an augmentation strategy by several clinical guidelines. EPA appears to be the therapeutically active fraction for mood, working through anti-inflammatory mechanisms, support for serotonin and dopamine function, and enhancement of neuroplasticity. Omega-3s are also one of the safest nutritional supplements available, with cardiovascular, anti-inflammatory, and cognitive benefits beyond mood. A high-quality, third-party tested fish oil is the most practical source. Algae-derived omega-3s are available for vegetarians and vegans. Omega-3 supplementation is appropriate for virtually anyone with depression, with or without antidepressants, and there is evidence it enhances antidepressant response when combined.

6. Light Therapy

Light therapy is primarily known for Seasonal Affective Disorder but has increasingly strong evidence for nonseasonal depression as well. A quality 10,000-lux light box used for 20–30 minutes each morning — within the first hour of waking — can produce antidepressant effects within 2–4 weeks. A 2015 JAMA Psychiatry study found that light therapy was as effective as fluoxetine for nonseasonal depression, and that combining light therapy with fluoxetine was superior to either alone. Light therapy is safe, inexpensive ($40–$80 for a quality light box), and has virtually no side effects when used correctly. It works by resetting the circadian rhythm, normalizing melatonin and serotonin production, and treating the delayed sleep phase common in depression. Look for a box with UV filtering and 10,000 lux intensity; sit at the recommended distance (usually 12–16 inches).

7. Addressing Gut Health

Given the bidirectional gut-brain relationship and the role of the gut microbiome in serotonin production and neuroinflammation, addressing gut health is an important component of comprehensive depression treatment. Practical gut-brain interventions include: eliminating ultra-processed foods and artificial ingredients, eating 30+ different plant foods per week for microbiome diversity, adding fermented foods (yogurt, kefir, kimchi, sauerkraut), considering a psychobiotic probiotic supplement (strains like Lactobacillus helveticus R0052 and Bifidobacterium longum R0175 have evidence for reducing depression and anxiety), and investigating any gut symptoms (bloating, IBS, food sensitivities) that may point to dysbiosis or leaky gut. The gut-brain connection is not theoretical — it is a documented physiological pathway with real clinical implications for depression treatment.

8. Functional Lab Testing

One of the most valuable things a person with depression can do before committing to a specific treatment plan is to get comprehensive functional lab testing. Standard psychiatric evaluations rarely include laboratory workup, yet depression has multiple biological root causes — thyroid dysfunction, nutrient deficiencies, inflammation, hormonal imbalance, blood sugar dysregulation — that are entirely treatable once identified. A functional psychiatry panel typically includes: complete thyroid panel (TSH, Free T3, Free T4, antibodies), Vitamin D (25-OH), B12 and folate, homocysteine, iron and ferritin, fasting glucose and insulin, inflammatory markers (CRP, ESR), complete metabolic panel, complete blood count, and sex hormones (for perimenopausal women or men with suspected andropause). Knowing your biology before choosing treatment is simply smarter medicine.

Whether you’re exploring alternatives to antidepressants or looking to optimize your response to current treatment, an integrative approach can open doors that conventional psychiatry often leaves closed. At drlewis.com, I specialize in exactly this kind of comprehensive, evidence-informed depression care. Brooklyn and telehealth available.