Will Soy Protein Powder Cause Weight Gain?
Soy contains all eight of the essential amino acids that are not produced by the human body, making it the only complete vegetable protein. Those seeking extra protein in their diet, especially vegetarians, often turn to soy protein powder. Although soy protein powder is generally considered a healthy addition to any diet, you should be aware of the possible side effects of using it, including weight gain.
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Beneficial Effects
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Soy protein powder provides a number of essential nutrients, including calcium, zinc, phosphorus, magnesium, and B vitamins. Soy protein powder also boasts a number of health benefits. The Food and Durg Administration has found research connecting soy and positive heart health conclusive. The FDA now allows manufacturers to print claims on packaging noting that the daily consumption of 25 g of soy can lower cholesterol and the risks of heart disease. The Archives of Internal Medicine reported that a study in 2005 involving 24,000 post-menopausal women linked soy consumption to a lower risk of bone fractures. Soy may help alleviate menopause symptoms in some women.
Calorie Considerations
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Although it can be mixed with water, soy protein powder tastes better dissolved in juice or milk. Blending it in smoothies or shakes makes it even more palatable. Soy protein powder alone contains about 100 calories per serving. You should be aware that some forms contain extra sweeteners and thickeners, which can increase this calorie load. Making soy protein powder into a smoothie can add a lot of calories. Even healthy ingredients like honey, juice and fruit can make your smoothie a into calorie bomb.
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Effect on Weight
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You pack on pounds when you consume more calories than you expend. Soy protein powder itself will should not cause you to gain weight, unless you add it to your diet without making other changes. If you replace other calories with soy protein powder, your weight should not be affected. Remember to be mindful of the preparation of your soy protein powder. The soy protein itself might not cause weight gain, but lots of extras mixed in might.
Side Effects
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Soy is the second most allergenic food, next to peanuts. It can cause gas, bloating and diarrhea and/or constipation. This can lead to the illusion of weight gain. If you see a connection between these symptoms and increase in soy intake, try eliminating it for a few days to see if your symptoms subside.
In certain people with thyroid function disorder, the intake of soy can inhibit the absorption of medication. Those with hypothyroidism may need to increase the dosage of their medication if consuming excess soy. Otherwise, symptoms including lethargy, hair loss and weight gain could continue. If you have a normal functioning thyroid, soy should not cause these problems.
General Considerations
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The excess consumption of any food can cause weight gain. If you decide soy protein powder supplementation is for you, be sure to include it as part of your daily calorie needs, not in addition to them. Those on medication for hypothyroidism might want to talk to their doctor before taking soy supplements.
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