What are Omega 7 Fatty Acids?
Omega-7 fatty acids are monounsaturated fats that are non-essential, meaning the body can produce them. The most studied type of Omega-7 is palmitoleic acid, which is increasingly recognized for its role in cellular communication and metabolic function. It acts as a signaling molecule, or 'lipokine,' that helps regulate metabolism and fat storage. Beyond its metabolic effects, Omega-7 is also a component of healthy skin and mucous membranes, which explains its widespread use in skincare and products for dry eye or vaginal dryness.
Key Sources of Omega 7
While the body can synthesize Omega-7, its availability from dietary sources is relatively limited compared to other fatty acids. However, some foods contain notable amounts:
- Sea Buckthorn Oil: Extracted from the berries of the sea buckthorn plant, this oil is the richest natural source of Omega-7. It is highly concentrated in palmitoleic acid and is often the primary ingredient in high-quality Omega-7 supplements.
- Macadamia Nuts and Oil: These nuts are a significant plant-based source of Omega-7, though their concentration is lower than that of sea buckthorn.
- Certain Fish and Fish Oil: Fatty fish such as salmon and anchovies contain some Omega-7. Some purified fish oil supplements are specifically processed to concentrate palmitoleic acid while removing the less desirable palmitic acid.
The Benefits of Omega 7 Supplementation
Supplementing with Omega-7 offers a variety of potential health benefits, particularly when derived from purified or high-concentration sources. Research is ongoing, but early studies highlight several key areas.
Skin and Mucous Membrane Health
Omega-7's role in skin hydration is one of its most well-known benefits. By supporting the health and regeneration of mucous membranes, supplements may help alleviate dryness in several areas of the body, including:
- Dry eyes
- Dry mouth
- Vaginal dryness, particularly in menopausal women Studies have also linked palmitoleic acid to improved skin elasticity and hydration, with some research suggesting it may reduce inflammation and aid in wound healing.
Metabolic and Cardiovascular Support
Some research suggests Omega-7 can play a positive role in metabolic health by improving insulin sensitivity and regulating fat metabolism. This can be particularly beneficial for individuals managing their weight or blood sugar levels. Additionally, Omega-7 may help support healthy cholesterol levels already within a normal range by potentially lowering LDL ('bad') cholesterol and increasing HDL ('good') cholesterol.
Comparing Different Omega 7 Supplement Sources
When choosing an Omega-7 supplement, it's important to consider the source, concentration, and purification process. The two main types are sea buckthorn oil and purified fish oil.
| Feature | Sea Buckthorn Oil Supplements | Purified Fish Oil Supplements (e.g., Provinal®) |
|---|---|---|
| Source | 100% plant-based, derived from sea buckthorn berries. | Derived from sustainably sourced fish, like anchovies. |
| Purity | Contains Omega-7 alongside Omegas 3, 6, and 9, and various antioxidants. Some formulas may contain higher levels of the less desirable palmitic acid. | Undergoes a multi-step purification process to remove palmitic acid and concentrate the Omega-7 (palmitoleic acid). |
| Suitability | Vegan/vegetarian-friendly. Offers a broader spectrum of nutrients. | Ideal for those seeking a highly concentrated and purified dose of palmitoleic acid. |
| Key Benefit | Comprehensive fatty acid support plus potent antioxidants. | Targeted metabolic and cardiovascular support with minimal unwanted saturated fats. |
What to Look for in an Omega 7 Supplement
To ensure you are getting a high-quality product, here are some factors to consider when purchasing an Omega-7 supplement:
- Source: Decide whether you prefer a plant-based option (sea buckthorn) or a highly purified animal-based one (fish oil). Sea buckthorn offers a broader nutrient profile, while purified fish oil can deliver a more potent, targeted dose of palmitoleic acid.
- Purification: For fish oil-based supplements, look for brands that specify a purification process to remove palmitic acid. This ensures you are getting the desired fatty acid without potential masking effects from saturated fats.
- Concentration: Check the label for the concentration of palmitoleic acid.
- Third-Party Testing: Reputable brands should have third-party testing for purity, potency, and contaminants like mercury. Look for seals from organizations like IFOS (International Fish Oil Standards).
- Capsule Form: Most supplements come in softgel or capsule form, making them easy to take. Consistency in taking the supplement is key for observing potential benefits.
Conclusion
In conclusion, it is possible and increasingly popular to obtain Omega-7 fatty acids from supplements, offering a concentrated source of palmitoleic acid that is otherwise scarce in many diets. Both plant-based sea buckthorn oil and purified fish oil options are available, each with distinct advantages. Supplementing with Omega-7 has shown promise for enhancing skin health, hydrating mucous membranes, and supporting metabolic function, including cardiovascular and blood sugar regulation. When selecting a supplement, prioritizing a reputable brand with a clearly stated source, purification process, and third-party testing is crucial for ensuring product quality and efficacy. As with any dietary addition, consulting a healthcare professional is recommended to determine the best approach for your individual health needs.
