BHF Heart Health Alert: Five 'Healthy' Foods That Could Harm Your Heart
Health experts at the British Heart Foundation (BHF) have issued a stark warning about five popular foods and drinks that, while beneficial for gut health, may inadvertently raise the risk of cardiovascular disease. In a recent update on their website, the charity urged consumers to scrutinise their dietary choices more closely, highlighting that certain gut-friendly items can be surprisingly high in salt or sugar.
The Hidden Dangers in Gut-Healthy Choices
The BHF emphasised that many people now actively select foods marketed as prebiotic, probiotic, or otherwise beneficial for the gut microbiome. While incorporating these foods into a balanced diet can be positive, the charity cautions that they often come with a significant catch. Tracy Parker, the nutrition lead at BHF, stated, "We encourage everyone to choose foods that can keep their gut microbiome healthy. The benefits are clear, but a lot of these products can contain high levels of salt or sugar, so it is important to be aware of the potential drawbacks."
By checking package labels for added salt and sugars and consuming these items in moderation, individuals can ensure the benefits do not outweigh the risks to heart health. The following five foods and drinks were specifically highlighted by the foundation:
- Kimchi: This fermented vegetable dish is rich in probiotics that support a diverse gut microbiome. However, traditional kimchi is often prepared with substantial amounts of salt, which can elevate blood pressure if consumed frequently or in large quantities. High blood pressure is a known risk factor for heart attacks and strokes. The BHF advises enjoying kimchi in small portions and opting for lower-salt varieties where possible.
- Kombucha: A fermented tea, kombucha contains probiotics and can serve as a healthier alternative to sugary fizzy drinks. Nonetheless, many commercial versions are laden with added sugars. Excessive sugar intake can lead to weight gain, subsequently increasing the risk of cardiovascular diseases such as heart attacks and strokes. The foundation recommends selecting lower-sugar options, often labelled as "no added sugar."
- Fruit Yoghurts: While plain yoghurt naturally contains probiotic live cultures that enhance gut bacteria, many flavoured or fruit-based yoghurts are packed with added sugars and may have fewer live cultures. The BHF suggests choosing plain yoghurt with "live and active cultures" on the label to ensure a low-sugar option that benefits the gut. Adding whole fruit at home provides a healthier way to incorporate sweetness.
- Smoothies: Smoothies made with whole fruits offer prebiotic fibre, vitamins, and antioxidants that support digestive health. However, blending breaks down the fruit's structure, releasing "free sugars" that behave like added sugars in the body, causing rapid spikes in blood sugar levels. Regular overconsumption can contribute to weight gain and increase the risk of type 2 diabetes, heart disease, and kidney issues. The BHF advises limiting smoothie intake to one 150ml serving per day and adding nuts or seeds for extra protein and fibre to stabilise blood sugar.
- Sauerkraut: Similar to kimchi, sauerkraut is a fermented food abundant in healthy probiotics. Yet, it also relies on salt for fermentation, posing concerns for blood pressure management. Additionally, some shop-bought versions are pasteurised, which removes most live bacteria. To maximise benefits, the BHF recommends checking labels for unpasteurised options labelled as "raw" or "contains live cultures" and consuming small portions to avoid excessive salt intake.
Balancing Gut Health and Cardiovascular Safety
The BHF's guidance underscores the importance of a nuanced approach to nutrition. While gut-friendly foods can play a valuable role in overall wellness, their potential impact on heart health must not be overlooked. Parker added, "By ensuring you check package labels for added salt and sugars, and eat each in moderation, you can make sure the risks do not outweigh the benefits for your heart health."
This warning serves as a reminder that even foods perceived as healthy require careful consideration, particularly for those managing cardiovascular risks. Consumers are encouraged to stay informed and make dietary choices that support both gut and heart health in tandem.
